Intel® Server Board
SE7520JR2
Technical Product Specification
Revision 1.0
October 2004
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Intel® Server Board SE7520JR2
Disclaimers
Disclaimers
Information in this document is provided in connection with Intel® products. No license, express or
implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except
as provided in Intel's Terms and Conditions of Sale for such products, Intel assumes no liability
whatsoever, and Intel disclaims any express or implied warranty, relating to sale and/or use of Intel
products including liability or warranties relating to fitness for a particular purpose, merchantability, or
infringement of any patent, copyright or other intellectual property right. Intel products are not intended for
use in medical, life saving, or life sustaining applications. Intel may make changes to specifications and
product descriptions at any time, without notice.
Designers must not rely on the absence or characteristics of any features or instructions marked
"reserved" or "undefined." Intel reserves these for future definition and shall have no responsibility
whatsoever for conflicts or incompatibilities arising from future changes to them.
This document contains information on products in the design phase of development. Do not finalize a
design with this information. Revised information will be published when the product is available. Verify
with your local sales office that you have the latest datasheet before finalizing a design.
The Intel® Server Board SE7520JR2 may contain design defects or errors known as errata which may
cause the product to deviate from published specifications. Current characterized errata are available on
request.
This document and the software described in it are furnished under license and may only be used or
copied in accordance with the terms of the license. The information in this manual is furnished for
informational use only, is subject to change without notice, and should not be construed as a commitment
by Intel Corporation. Intel Corporation assumes no responsibility or liability for any errors or inaccuracies
that may appear in this document or any software that may be provided in association with this document.
Except as permitted by such license, no part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means without the express written consent of Intel
Corporation.
Intel Corporation server boards contain a number of high-density VLSI and power delivery components
that need adequate airflow to cool. Intel’s own chassis are designed and tested to meet the intended
thermal requirements of these components when the fully integrated system is used together. It is the
responsibility of the system integrator that chooses not to use Intel developed server building blocks to
consult vendor datasheets and operating parameters to determine the amount of air flow required for their
specific application and environmental conditions. Intel Corporation cannot be held responsible if
components fail or the server board does not operate correctly when used outside any of their published
operating or non-operating limits.
Intel, Pentium, Itanium, and Xeon are trademarks or registered trademarks of Intel Corporation.
*Other brands and names may be claimed as the property of others.
Copyright © Intel Corporation 2004.
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Table of Contents
Intel® Server Board SE7520JR2
Table of Contents
1. Introduction ........................................................................................................................19
1.1
1.2
Chapter Outline......................................................................................................19
Server Board Use Disclaimer ................................................................................20
2. Server Board Overview......................................................................................................21
2.1
2.2
Server Board SE7520JR2 SKU Availability...........................................................21
Server Board SE7520JR2 Feature Set..................................................................21
3. Functional Architecture.....................................................................................................26
3.1
3.1.1
Processor Sub-system...........................................................................................27
Processor Voltage Regulators...............................................................................27
Reset Configuration Logic .....................................................................................27
Processor Module Presence Detection .................................................................27
GTL2006................................................................................................................27
Common Enabling Kit (CEK) Design Support........................................................28
Processor Support.................................................................................................28
3.1.2
3.1.3
3.1.4
3.1.5
3.1.6
3.1.6.1 Processor Mis-population Detection ..................................................................29
3.1.6.2 Mixed Processor Steppings ...............................................................................29
3.1.6.3 Mixed Processor Models....................................................................................29
3.1.6.4 Mixed Processor Families..................................................................................29
3.1.6.5 Mixed Processor Cache Sizes ...........................................................................29
3.1.6.6 Jumperless Processor Speed Settings ..............................................................29
3.1.6.7 Microcode...........................................................................................................30
3.1.6.8 Processor Cache................................................................................................30
3.1.6.9 Hyper-Threading Technology.............................................................................30
3.1.6.10 Intel® SpeedStep® Technology.......................................................................30
3.1.6.11 EM64T Technology Support ............................................................................30
3.1.7
Multiple Processor Initialization .............................................................................30
CPU Thermal Sensors...........................................................................................31
Processor Thermal Control Sensor .......................................................................31
3.1.8
3.1.9
3.1.10 Processor Thermal Trip Shutdown ........................................................................31
3.1.11 Processor IERR.....................................................................................................31
3.2
3.2.1
Intel® E7520 Chipset.............................................................................................31
Memory Controller Hub (MCH) ..............................................................................32
3.2.1.1 Front Side Bus (FSB).........................................................................................32
3.2.1.2 MCH Memory Sub-System Overview.................................................................32
3.2.1.3 PCI Express .......................................................................................................32
3.2.1.4 Hub Interface......................................................................................................33
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3.2.2
PCI-X Hub (PXH)...................................................................................................33
3.2.2.1 Full-height Riser Slot..........................................................................................33
3.2.2.2 Low Profile Riser Slot.........................................................................................33
3.2.2.3 I/OxAPIC Controller............................................................................................34
3.2.2.4 SMBus Interface.................................................................................................34
3.2.3
I/O Controller Hub (ICH5-R) ..................................................................................34
3.2.3.1 PCI Interface ......................................................................................................34
3.2.3.2 IDE Interface (Bus Master Capability and Synchronous DMA Mode)................34
3.2.3.3 SATA Controller .................................................................................................35
3.2.3.4 Low Pin Count (LPC) Interface ..........................................................................35
3.2.3.5 Compatibility Modules (DMA Controller, Timer/Counters, Interrupt Controller) .35
3.2.3.6 Advanced Programmable Interrupt Controller (APIC)........................................36
3.2.3.7 Universal Serial Bus (USB) Controller ...............................................................36
3.2.3.8 RTC....................................................................................................................36
3.2.3.9 General Purpose I/O (GPIO)..............................................................................36
3.2.3.10 Enhanced Power Management........................................................................36
3.2.3.11 System Management Bus (SMBus 2.0) ...........................................................36
3.3
3.3.1
3.3.2
Memory Sub-System .............................................................................................37
Memory Sizing.......................................................................................................37
Memory Population................................................................................................38
ECC Memory Initialization .....................................................................................40
Memory Test..........................................................................................................40
Memory Monitoring................................................................................................41
Memory RASUM Features.....................................................................................42
3.3.3
3.3.4
3.3.5
3.3.6
3.3.6.1 DRAM ECC – Intel® x4 Single Device Data Correction (x4 SDDC) .................42
3.3.6.2 Integrated Memory Scrub Engine ......................................................................42
3.3.6.3 Retry on Uncorrectable Error .............................................................................43
3.3.6.4 Integrated Memory Initialization Engine.............................................................43
3.3.6.5 DIMM Sparing Function .....................................................................................44
3.3.6.6 Memory Mirroring...............................................................................................45
3.3.6.7 Logging Memory RAS Information to the SEL ...................................................47
3.4
I/O Sub-System .....................................................................................................47
3.4.1
PCI Subsystem......................................................................................................47
3.4.1.1 P32-A: 32-bit, 33-MHz PCI Subsystem..............................................................48
3.4.1.2 P64-A and P64-B: 64-bit, 100MHz PCI Subsystem ...........................................48
3.4.1.3 P64-Express: Dual x4 PCI Bus Segment...........................................................48
3.4.1.4 PCI Riser Slots...................................................................................................48
3.4.1.5 PCI Scan Order..................................................................................................49
3.4.1.6 PCI Bus Numbering ...........................................................................................49
3.4.1.7 Device Number and IDSEL Mapping .................................................................50
3.4.1.8 Resource Assignment........................................................................................52
3.4.1.9 Automatic IRQ Assignment................................................................................52
3.4.1.10 Option ROM Support........................................................................................52
3.4.1.11 PCI APIs...........................................................................................................52
3.4.2
Split Option ROM...................................................................................................52
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3.4.3
Interrupt Routing....................................................................................................52
3.4.3.1 Legacy Interrupt Routing....................................................................................52
3.4.3.2 APIC Interrupt Routing.......................................................................................53
3.4.3.3 Legacy Interrupt Sources...................................................................................54
3.4.3.4 Serialized IRQ Support ......................................................................................54
3.4.3.5 IRQ Scan for PCIIRQ.........................................................................................55
3.4.4
SCSI Support.........................................................................................................58
3.4.4.1 LSI* 53C1030 Dual Channel Ultra320 SCSI Controller .....................................58
3.4.4.2 Zero Channel RAID............................................................................................60
3.4.5
IDE Support ...........................................................................................................60
3.4.5.1 Ultra ATA/100.....................................................................................................61
3.4.5.2 IDE Initialization .................................................................................................61
3.4.6
SATA Support........................................................................................................61
3.4.6.1 SATA RAID ........................................................................................................62
3.4.6.2 Intel® RAID Technology Option ROM................................................................62
3.4.7
Video Support........................................................................................................62
3.4.7.1 Video Modes ......................................................................................................62
3.4.7.2 Video Memory Interface.....................................................................................63
3.4.7.3 Dual video ..........................................................................................................64
3.4.8 Network Interface Controller (NIC) ........................................................................64
3.4.8.1 NIC Connector and Status LEDs .......................................................................65
3.4.9
USB 2.0 Support....................................................................................................65
3.4.10 Super I/O Chip.......................................................................................................65
3.4.10.1 GPIOs ..............................................................................................................65
3.4.10.2 Serial Ports.......................................................................................................67
3.4.10.3 Removable Media Drives.................................................................................69
3.4.10.4 Floppy Disk Support.........................................................................................69
3.4.10.5 Keyboard and Mouse Support .........................................................................69
3.4.10.6 Wake-up Control ..............................................................................................69
3.4.11 BIOS Flash ............................................................................................................69
3.5
3.5.1
Configuration and Initialization...............................................................................70
Memory Space.......................................................................................................70
3.5.1.1 DOS Compatibility Region .................................................................................71
3.5.1.2 Extended Memory..............................................................................................73
3.5.1.3 Memory Shadowing ...........................................................................................74
3.5.1.4 System Management Mode Handling................................................................75
3.5.2
3.5.3
I/O Map..................................................................................................................76
Accessing Configuration Space.............................................................................78
3.5.3.1 CONFIG_ADDRESS Register............................................................................79
Clock Generation and Distribution.........................................................................79
3.6
4. System BIOS.......................................................................................................................80
4.1
4.2
BIOS Identification String.......................................................................................80
Flash Architecture and Flash Update Utility...........................................................81
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4.3
BIOS Power On Self Test (POST).........................................................................81
User Interface ........................................................................................................81
4.3.1
4.3.1.1 System Activity Window.....................................................................................82
4.3.1.2 Splash Screen/Diagnostic Window ....................................................................82
4.3.1.3 POST Activity Window .......................................................................................83
4.3.2
BIOS Boot Popup Menu ........................................................................................83
BIOS Setup Utility..................................................................................................84
Localization............................................................................................................84
Entering BIOS Setup .............................................................................................85
4.4
4.4.1
4.4.2
4.4.2.1 Main Menu .........................................................................................................85
4.4.2.2 Advanced Menu .................................................................................................86
4.4.2.3 Boot Menu..........................................................................................................95
4.4.2.4 Security Menu ....................................................................................................98
4.4.2.5 Server Menu.......................................................................................................99
4.4.2.6 Exit Menu .........................................................................................................102
4.5
Rolling BIOS and On-line Updates ......................................................................102
4.5.1
Flash Update Utility..............................................................................................103
4.5.1.1 Flash BIOS.......................................................................................................103
4.5.1.2 User Binary Area..............................................................................................103
4.5.1.3 Recovery Mode................................................................................................103
4.5.1.4 BIOS Recovery ................................................................................................104
4.5.2
.Configuration Reset............................................................................................104
OEM Binary .........................................................................................................105
Security................................................................................................................105
Operating Model ..................................................................................................106
Password Clear Jumper ......................................................................................108
Extensible Firmware Interface (EFI) ....................................................................108
EFI Shell ..............................................................................................................108
Operating System Boot, Sleep, and Wake ..........................................................108
Microsoft* Windows* Compatibility ......................................................................108
Advanced Configuration and Power Interface (ACPI) .........................................109
4.6
4.7
4.7.1
4.7.2
4.8
4.8.1
4.9
4.9.1
4.9.2
4.9.2.1 Sleep and Wake Functionality..........................................................................109
4.9.2.2 Power Switch Off to On....................................................................................110
4.9.2.3 On to Off (OS absent) ......................................................................................110
4.9.2.4 On to Off (OS present).....................................................................................110
4.9.2.5 On to Sleep (ACPI) ..........................................................................................110
4.9.2.6 Sleep to On (ACPI) ..........................................................................................111
4.9.2.7 System Sleep States........................................................................................111
4.10
4.11
PXE BIOS Support ..............................................................................................112
Console Redirection ............................................................................................112
5. Platform Management......................................................................................................113
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5.1
5.1.1
Platform Management Architecture Overview .....................................................115
5V Standby ..........................................................................................................116
IPMI Messaging, Commands, and Abstractions xxx............................................116
IPMI ‘Sensor Model’.............................................................................................117
Private Management Busses...............................................................................118
Management Controllers .....................................................................................118
On-Board Platform Management Features and Functionality..............................121
Server Management I2C Buses ...........................................................................122
Power Control Interfaces .....................................................................................122
External Interface to the mBMC...........................................................................122
mBMC Hardware Architecture.............................................................................123
Power Supply Interface Signals...........................................................................124
Power Control Sources........................................................................................126
Power-up Sequence ............................................................................................126
Power-down Sequence........................................................................................126
System Reset Control..........................................................................................126
5.1.2
5.1.3
5.1.4
5.1.5
5.2
5.2.1
5.2.2
5.2.3
5.3
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.3.5.1 Reset Signal Output.........................................................................................126
5.3.5.2 Reset Control Sources.....................................................................................127
5.3.5.3 Control Panel System Reset............................................................................127
5.3.5.4 Control Panel Indicators...................................................................................128
5.3.5.5 Control Panel Inputs.........................................................................................129
5.3.6
Secure Mode Operation.......................................................................................131
Baseboard Fan Control........................................................................................131
mBMC Peripheral SMBus....................................................................................131
Watchdog Timer ..................................................................................................131
5.3.7
5.3.8
5.3.9
5.3.10 System Event Log (SEL) .....................................................................................131
5.3.10.1 SEL Erasure...................................................................................................132
5.3.10.2 Timestamp Clock ...........................................................................................132
5.3.11 Sensor Data Record (SDR) Repository...............................................................132
5.3.11.1 Initialization Agent..........................................................................................132
5.3.12 Field Replaceable Unit (FRU) Inventory Devices ................................................133
5.3.12.1 mBMC FRU Inventory Area Format ...............................................................133
5.3.13 NMI Generation ...................................................................................................133
5.3.14 SMI Generation....................................................................................................133
5.3.15 Event Message Reception...................................................................................133
5.3.16 mBMC Self Test...................................................................................................134
5.3.17 Messaging Interfaces...........................................................................................134
5.3.17.1 Channel Management....................................................................................134
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5.3.17.2 User Model.....................................................................................................134
5.3.17.3 Request/Response Protocol ..........................................................................134
5.3.17.4 Host to mBMC Communication Interface.......................................................134
5.3.17.5 LAN Interface .................................................................................................135
5.3.18 Event Filtering and Alerting..................................................................................136
5.3.18.1 Platform Event Filtering (PEF) .......................................................................136
5.3.18.2 Alert over LAN................................................................................................137
5.3.19 mBMC Sensor Support........................................................................................137
5.3.20 IMM BMC Sensor Support...................................................................................142
5.4
Wired For Management (WFM)...........................................................................148
Vital Product Data (VPD).....................................................................................148
System Management BIOS (SMBIOS)................................................................148
5.5
5.6
6. Error Reporting and Handling.........................................................................................149
6.1
6.1.1
Fault Resilient Booting (FRB) ..............................................................................149
FRB1 – BSP Self-Test Failures ...........................................................................149
FRB2 – BSP POST Failures................................................................................149
FRB3 – BSP Reset Failures ................................................................................150
AP Failures ..........................................................................................................151
Treatment of Failed Processors...........................................................................151
Memory Error Handling in RAS Mode..................................................................152
Memory Error Handling in non-RAS Mode ..........................................................153
DIMM Enabling ....................................................................................................154
Single-bit ECC Error Throttling Prevention..........................................................154
Error Logging.......................................................................................................155
6.1.2
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
6.1.8
6.1.9
6.2
6.2.1.1 PCI Bus Error...................................................................................................155
6.2.1.2 Processor Bus Error.........................................................................................155
6.2.1.3 Memory Bus Error............................................................................................156
6.2.1.4 System Limit Error............................................................................................156
6.2.1.5 Processor Failure.............................................................................................156
6.2.1.6 Boot Event........................................................................................................156
6.3
Error Messages and Error Codes........................................................................156
6.3.1
6.3.2
POST Error Messages.........................................................................................156
POST Error Codes...............................................................................................162
BIOS Generated POST Error Beep Codes..........................................................165
Boot Block Error Beep Codes..............................................................................166
BMC Generated Beep Codes (Professional/Advanced only) ..............................166
Checkpoints.........................................................................................................167
System ROM BIOS POST Task Test Point (Port 80h Code)...............................167
6.3.3
6.3.4
6.3.5
6.4
6.4.1
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6.4.2
6.4.3
6.4.4
6.4.5
6.4.6
6.4.7
6.4.8
6.4.9
Diagnostic LEDs ..................................................................................................167
POST Code Checkpoints.....................................................................................168
Bootblock Initialization Code Checkpoints...........................................................170
Bootblock Recovery Code Checkpoint ................................................................171
DIM Code Checkpoints........................................................................................172
ACPI Runtime Checkpoints .................................................................................173
POST Progress FIFO (Professional / Advanced only).........................................173
Memory Error Codes ...........................................................................................173
Light Guided Diagnostics.....................................................................................174
6.5
7. Connectors and Jumper Blocks .....................................................................................175
7.1
7.2
Power Connectors ...............................................................................................175
Riser Slots ...........................................................................................................176
Low Profile PCI-X Riser Slot................................................................................176
Full Height PCI-X Riser Slot ................................................................................179
System Management Headers ............................................................................184
Intel® Management Module Connector...............................................................184
ICMB Header.......................................................................................................187
IPMB Header .......................................................................................................187
OEM RMC Connector (J3B2) ..............................................................................189
Control Panel Connectors....................................................................................189
I/O Connectors.....................................................................................................192
VGA Connector....................................................................................................192
NIC Connectors ...................................................................................................193
SCSI Connectors.................................................................................................193
ATA-100 Connector.............................................................................................194
SATA Connectors................................................................................................195
Floppy Controller Connector................................................................................195
Serial Port Connectors.........................................................................................196
Keyboard and Mouse Connector.........................................................................197
USB Connector....................................................................................................197
Fan Headers........................................................................................................198
Misc. Headers and Connectors ...........................................................................200
Chassis Intrusion Header ....................................................................................200
Hard Drive Activity LED Header...........................................................................200
Jumper Blocks .....................................................................................................201
7.2.1
7.2.2
7.3
7.3.1
7.3.2
7.3.3
7.3.4
7.4
7.5
7.5.1
7.5.2
7.5.3
7.5.4
7.5.5
7.5.6
7.5.7
7.5.8
7.5.9
7.6
7.7
7.7.1
7.7.2
7.8
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8. Design and Environmental Specifications.....................................................................202
8.1
8.2
Server Board SE7520JR2 Design Specification..................................................202
Power Supply Requirements ...............................................................................202
Output Connectors...............................................................................................202
Grounding............................................................................................................205
Remote Sense.....................................................................................................206
Standby Outputs..................................................................................................206
Voltage Regulation ..............................................................................................207
Dynamic Loading.................................................................................................207
Capacitive Loading ..............................................................................................208
Closed Loop Stability...........................................................................................208
Common Mode Noise..........................................................................................208
8.2.1
8.2.2
8.2.3
8.2.4
8.2.5
8.2.6
8.2.7
8.2.8
8.2.9
8.2.10 Ripple / Noise ......................................................................................................208
8.2.11 Soft Starting.........................................................................................................209
8.2.12 Zero Load Stability Requirements .......................................................................209
8.2.13 Timing Requirements...........................................................................................209
8.2.14 Residual Voltage Immunity in Standby Mode......................................................211
8.3
Product Regulatory Compliance..........................................................................212
Product Safety Compliance .................................................................................212
Product EMC Compliance – Class A Compliance...............................................212
Certifications / Registrations / Declarations.........................................................213
Product Regulatory Compliance Markings ..........................................................213
Electromagnetic Compatibility Notices ................................................................214
FCC (USA)...........................................................................................................214
Industry Canada (ICES-003) ...............................................................................214
Europe (CE Declaration of Conformity) ...............................................................215
Taiwan Declaration of Conformity (BSMI)............................................................215
Korean Compliance (RRL)...................................................................................215
8.3.1
8.3.2
8.3.3
8.3.4
8.4
8.4.1
8.4.2
8.4.3
8.4.4
8.4.5
9. Miscellaneous Board Information...................................................................................216
9.1
9.2
9.3
Updating the System Software ............................................................................216
Programming FRU and SDR Data.......................................................................216
Clearing CMOS....................................................................................................217
CMOS Clear Using J1H2 Jumper Block..............................................................217
CMOS Clear using Control Panel........................................................................217
BIOS Recovery Operation ...................................................................................218
9.3.1
9.3.2
9.4
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Appendix A: Integration and Usage Tips..............................................................................221
Glossary...................................................................................................................................222
Reference Documents............................................................................................................225
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List of Figures
List of Figures
Figure 1. SE7520JR2 Board Layout ...........................................................................................23
Figure 2. Server Board Dimensions............................................................................................25
Figure 3. Server Board SE7520JR2 Block Diagram...................................................................26
Figure 4. CEK Processor Mounting ............................................................................................28
Figure 5. Identifying Banks of Memory .......................................................................................38
Figure 6. Four DIMM Memory Mirror Configuration ....................................................................45
Figure 7. Six DIMM Memory Mirror Configuration (DDR2 Only).................................................46
Figure 8. Interrupt Routing Diagram (ICH5-R Internal)...............................................................55
Figure 9. Interrupt Routing Diagram ...........................................................................................56
Figure 10. PCI Interrupt Mapping Diagram.................................................................................57
Figure 11. PCI Interrupt Mapping Diagram for 2U Active Riser Card .........................................57
Figure 12. Serial Port Mux Logic.................................................................................................68
Figure 13. RJ45 Serial B Port Jumper Block Location and Setting.............................................68
Figure 14. Intel® Xeon™ Processor Memory Address Space.....................................................70
Figure 15. DOS Compatibility Region.........................................................................................71
Figure 16. Extended Memory Map..............................................................................................73
Figure 17. BIOS Identification String...........................................................................................80
Figure 18. POST Console Interface............................................................................................82
Figure 19. On-Board Platform Management Architecture.........................................................115
Figure 20. mBMC in a Server Management System.................................................................121
Figure 21. External Interfaces to mBMC...................................................................................123
Figure 22. mBMC Block Diagram .............................................................................................124
Figure 23. Power Supply Control Signals .................................................................................125
Figure 24. Location of Diagnostic LEDs on Baseboard ............................................................168
Figure 25. 34-Pin SSI Compliant Control Panel Header...........................................................192
Figure 26. System Configuration (J1H2) Jumper Block Settings..............................................201
Figure 27. Power Harness Specification Drawing.....................................................................203
Figure 28. Output Voltage Timing.............................................................................................210
Figure 29. Turn On/Off Timing (Power Supply Signals)............................................................211
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List of Tables
Intel® Server Board SE7520JR2
List of Tables
Table 1: Baseboard Layout Reference .......................................................................................24
Table 2: Processor Support Matrix .............................................................................................28
Table 3: Supported DDR-266 DIMM Populations.......................................................................39
Table 4: Supported DDR-333 DIMM Populations.......................................................................39
Table 5: Supported DDR2-400 DIMM Populations.....................................................................40
Table 6: Memory Monitoring Support by Server Management Level..........................................41
Table 7: PCI Bus Segment Characteristics.................................................................................48
Table 8: PCI Configuration IDs and Device Numbers.................................................................51
Table 9: PCI Interrupt Routing/Sharing.......................................................................................53
Table 10: Interrupt Definitions.....................................................................................................54
Table 11: Video Modes...............................................................................................................63
Table 12: Video Memory Interface..............................................................................................63
Table 13: Super I/O GPIO Usage Table .....................................................................................65
Table 14: Serial A Header Pin-out ..............................................................................................67
Table 15: SMM Space Table ......................................................................................................75
Table 16: I/O Map .......................................................................................................................76
Table 17: Sample BIOS Popup Menu........................................................................................84
Table 18: BIOS Setup Keyboard Command Bar Options ..........................................................84
Table 19: BIOS Setup, Main Menu Options...............................................................................85
Table 20: BIOS Setup, Advanced Menu Options.......................................................................86
Table 21: BIOS Setup, Processor Configuration Sub-menu Options ........................................87
Table 22: BIOS Setup IDE Configuration Menu Options ...........................................................88
Table 23: Mixed P-ATA-S-ATA Configuration with only Primary P-ATA....................................89
Table 24: BIOS Setup, IDE Device Configuration Sub-menu Selections ..................................90
Table 25: BIOS Setup, Floppy Configuration Sub-menu Selections..........................................91
Table 26: BIOS Setup, Super I/O Configuration Sub-menu.......................................................91
Table 27: BIOS Setup, USB Configuration Sub-menu Selections.............................................92
Table 28: BIOS Setup, USB Mass Storage Device Configuration Sub-menu Selections..........92
Table 29: BIOS Setup, PCI Configuration Sub-menu Selections ..............................................93
Table 30: BIOS Setup, Memory Configuration Sub-menu Selections........................................94
Table 31: BIOS Setup, Boot Menu Selections...........................................................................95
Table 32: BIOS Setup, Boot Settings Configuration Sub-menu Selections...............................96
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List of Tables
Table 33: BIOS Setup, Boot Device Priority Sub-menu Selections ...........................................97
Table 34: BIOS Setup, Hard Disk Drive Sub-Menu Selections..................................................97
Table 35: BIOS Setup, Removable Drives Sub-menu Selections..............................................97
Table 36: BIOS Setup, CD/DVD Drives Sub-menu Selections..................................................97
Table 37: BIOS Setup, Security Menu Options..........................................................................98
Table 38: BIOS Setup, Server Menu Selections........................................................................99
Table 39: BIOS Setup, System Management Sub-menu Selections.......................................100
Table 40: BIOS Setup, Serial Console Features Sub-menu Selections ..................................101
Table 41: BIOS Setup, Event Log Configuration Sub-menu Selections ..................................101
Table 42: BIOS Setup, Exit Menu Selections ..........................................................................102
Table 43: Security Features Operating Model .........................................................................106
Table 44: Supported Wake Events ..........................................................................................111
Table 45: Suppoted Management Features by Tier .................................................................113
Table 46: Server Management I2C Bus ID Assignments ..........................................................122
Table 47: Power Control Initiators.............................................................................................126
Table 48: System Reset Sources and Actions..........................................................................127
Table 49: SSI Power LED Operation ........................................................................................128
Table 50: Fault / Status LED.....................................................................................................129
Table 51: Chassis ID LED.........................................................................................................129
Table 52: Suported Channel Assignments ...............................................................................134
Table 53: LAN Channel Capacity..............................................................................................135
Table 54: PEF Action Priorities.................................................................................................137
Table 55: Platform Sensors for On-Board Platform Instrumentation ........................................138
Table 56. Platform Sensors for Intel Management Modules - Professional and Advanced......142
Table 57: Memory Error Handling mBMC vs Sahalee ..............................................................153
Table 58: Memory Error Handling in non-RAS mode................................................................154
Table 59: Memory BIOS Messages.........................................................................................156
Table 60: Boot BIOS Messages...............................................................................................157
Table 61: Storage Device BIOS Messages .............................................................................157
Table 62: Virus Related BIOS Messages ................................................................................160
Table 63: System Configuration BIOS Messages....................................................................160
Table 64: CMOS BIOS Messages ...........................................................................................161
Table 65: Miscellaneous BIOS Messages ...............................................................................161
Table 66: USB BIOS Error Messages......................................................................................161
Table 67: SMBIOS BIOS Error Messages...............................................................................162
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Intel® Server Board SE7520JR2
Table 68: Error Codes and Messages ......................................................................................162
Table 69: Error Codes Sent to the Management Module .........................................................164
Table 70: BIOS Generated Beep Codes...................................................................................165
Table 71: Troubleshooting BIOS Beep Codes..........................................................................166
Table 72: Boot Block Error Beep Codes..................................................................................166
Table 73: BMC Beep Code.......................................................................................................167
Table 74: POST Progress Code LED Example ........................................................................167
Table 75: POST Code Checkpoints..........................................................................................168
Table 76: Bootblock Initialization Code Checkpoints................................................................170
Table 77: Bootblock Recovery Code Checkpoint .....................................................................171
Table 78: DIM Code Checkpoints.............................................................................................172
Table 79: ACPI Runtime Checkpoints ......................................................................................173
Table 80: Memory Error Codes.................................................................................................173
Table 81: Power Connector Pin-out..........................................................................................175
Table 82: 12V Power Connector (J4J1)....................................................................................175
Table 83: Power Supply Signal Connector (J1G1) ...................................................................176
Table 84: IDE Power Connector Pinout (U2E1)........................................................................176
Table 85: Low Profile Riser Slot Pinout ....................................................................................176
Table 86: Full-height Riser Slot Pinout .....................................................................................180
Table 87: IMM Connector Pinout (J1C1) ..................................................................................184
Table 88: ICMB Header Pin-out (J1D1)....................................................................................187
Table 89: IPMB Connector Pin-out (J3F1)................................................................................188
Table 90: OEM RMC Connector Pinout (J3B2) ........................................................................189
Table 91: 100-Pin Flex Cable Connector Pin-out (For Intel Chassis w/Backplane) (J2J1).......189
Table 92: 50-Pin Control Panel Connector (Intel Chassis w/No Backplane) (J1J2) .................190
Table 93: Control Panel SSI Standard 34-Pin Header Pin-out .................................................191
Table 94: VGA Connector Pin-out ............................................................................................192
Table 95: RJ-45 10/100/1000 NIC Connector Pin-out ..............................................................193
Table 96: Internal/External 68-pin VHDCI SCSI Connector Pin-out .........................................193
Table 97: ATA-100 40-pin Connector Pin-out (J3K1) ...............................................................194
Table 98: SATA Connector Pin-out (J1H1 and J1H5) ..............................................................195
Table 99: Legacy 34-pin Floppy Drive Connector Pin-out (J3K2).............................................196
Table 100: External RJ-45 Serial B Port Pin-out.......................................................................196
Table 101: Internal 9-pin Serial A Header Pin-out (J1A3).........................................................196
Table 102: Stacked PS/2 Keyboard and Mouse Port Pin-out...................................................197
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Intel® Server Board SE7520JR2
List of Tables
Table 103: External USB Connector Pin-out ............................................................................197
Table 104: Internal 1x10 USB Connector Pin-out (J1F1) .........................................................198
Table 105: Internal 2x5 USB Connector (J1G1) .......................................................................198
Table 106: CPU1/CPU2 Fan Connector Pin-out (J5F2, J7F1) .................................................199
Table 107: Intel Server Chassis Fan Header Pin-out (J3K6)....................................................199
Table 108: 3-Pin Fan Speed Controlled Fan Header (J3K3)....................................................200
Table 109: Chassis Intrusion Header (J1A1)............................................................................200
Table 110: Hard Drive Activity LED Header(J1A2)...................................................................200
Table 111: Jumper Block Definitions ........................................................................................201
Table 112: Board Design Specifications...................................................................................202
Table 113: P1 Main Power Connector......................................................................................204
Table 114: P2 Processor Power Connector..............................................................................204
Table 115: P3 Baseboard Signal Connector.............................................................................205
Table 116: Peripheral Power Connectors.................................................................................205
Table 117: P7 Hard Drive Power Connector.............................................................................205
Table 118: Voltage Regulation Limits .......................................................................................207
Table 119: Transient Load Requirements.................................................................................207
Table 120: Capacitve Loading Conditions ................................................................................208
Table 121: Ripple and Noise.....................................................................................................208
Table 122: Output Voltage Timing ............................................................................................209
Table 123: Turn On/Off Timing .................................................................................................210
Table 124: Product Certification Markings.............................................................................213
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Intel® Server Board SE7520JR2
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Intel® Server Board SE7520JR2
Introduction
1. Introduction
This Technical Product Specification (TPS) provides detail to the architecture and feature set of
the Intel® Server Board SE7520JR2.
The target audience for this document is anyone wishing to obtain more in depth detail of the
server board than what is generally made available in the board’s Users Guide. It is a technical
document meant to assist people with understanding and learning more about the specific
features of the board.
This is one of several technical documents available for this server board. All of the functional
sub-systems that make up the board are described in this document. However, some low-level
detail of specific sub-systems is not included. Design level information for specific sub-systems
can be obtained by ordering the External Product Specification (EPS) for a given sub-system.
The EPS documents available for this server board include the following:
• Intel® Server Board SE7520JR2 BIOS EPS
• Intel® Server Board SE7520JR2 Baseboard Management Controller EPS
• mini Baseboard Management Controller (mBMC) Core EPS for IPMI-based Systems
• Sahalee Core BMC EPS for IPMI v1.5
These documents are not publicly available and must be ordered by your local Intel
representative.
1.1 Chapter Outline
This document is divided into the following chapters
• Chapter 1 – Introduction
• Chapter 2 – Product Overview
• Chapter 3 – Board Architecture
• Chapter 4 – System BIOS
• Chapter 5 – Platform Management Architecture
• Chapter 6 – Error Reporting and Handling
• Chapter 7 – Connector Pin-out and Jumper Blocks
• Chapter 8 – Environmental Specifications
• Chapter 9 – Miscellaneous Board Information
• Appendix A – Integration and Usage Tips
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Introduction
Intel® Server Board SE7520JR2
1.2 Server Board Use Disclaimer
Intel Corporation server boards contain a number of high-density VLSI and power delivery
components that need adequate airflow to cool. Intel ensures through its own chassis
development and testing that when Intel server building blocks are used together, the fully
integrated system will meet the intended thermal requirements of these components. It is the
responsibility of the system integrator who chooses not to use Intel developed server building
blocks to consult vendor datasheets and operating parameters to determine the amount of air
flow required for their specific application and environmental conditions. Intel Corporation
cannot be held responsible, if components fail or the server board does not operate correctly
when used outside any of their published operating or non-operating limits.
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Intel® Server Board SE7520JR2
Server Board Overview
2. Server Board Overview
The Intel® Server Board SE7520JR2 is a monolithic printed circuit board with features that were
designed to support the high density 1U and 2U server markets.
2.1 Server Board SE7520JR2 SKU Availability
In this document, the name SE7520JR2 is used to describe the family of boards that are made
available under a common product name. The core features for each board will be common;
however each board will have the following distinctions:
Product Code
Feature Distinctions
SE7520JR2SCSID2
SE7520JR2SCSID1
SE7520JR2ATAD2
SE7520JR2ATAD1
Onboard SCSI + Onboard SATA (RAID) + DDR2 – 400 MHz
Onboard SCSI + Onboard SATA (RAID) + DDR – 266/333 MHz
Onboard SATA (RAID) + DDR2 – 400 MHz
Onboard SATA (RAID) + DDR – 266/333 MHz
Throughout this document, all references to the Server Board SE7520JR2 will refer to all four
board SKUs unless specifically noted otherwise. The board you select to use, may or may not
have all the features described based on the listed board differences.
2.2 Server Board SE7520JR2 Feature Set
•
•
•
Dual processor slots supporting 800MHz Front Side Bus (FSB) Intel® Xeon™ processors
Intel E7520 Chipset (MCH, PXH, ICH5-R)
Two PCI riser slots
o Riser Slot 1: Supports low profile PCI-X 66/100MHz PCI-X cards
o Riser Slot 2: Using Intel® adaptive slot technology and different riser cards, this
slot is capable of supporting full height PCI-X 66/100/133 or PCI-Express cards.
•
•
Six DIMM slots supporting DDR2 – 400MHz DIMMs or DDR – 266/333 MHz1 DIMMs
Dual channel LSI* 53C1030 Ultra320 SCSI Controller with integrated RAID 0/1 support
(SCSI SKU only)
•
•
•
•
Dual Intel® 82546GB 10/100/1000 Network Interface Controllers (NICs)
On board ATI* Rage XL video controller with 8MB SDRAM
On-board platform instrumentation using a National* PC87431M mini-BMC
External IO connectors
o
Stacked PS2 ports for keyboard and mouse
1
The use of DDR2 - 400 MHz or DDR - 266/333 MHz DIMMs is dependant on which board SKU is used. DDR-2
DIMMs cannot be used on a board designed to support DDR. DDR DIMMs cannot be used on boards designed to
support DDR-2.
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Server Board Overview
Intel® Server Board SE7520JR2
o
RJ45 Serial B Port
o Two RJ45 NIC connectors
o 15-pin video connector
o Two USB 2.0 ports
o U320 High density SCSI connector (Channel B) (SCSI SKU only)
•
Internal IO Connectors / Headers
o Two onboard USB port headers. Each header is capable of supporting two USB
2.0 ports.
o One 10-pin DH10 Serial A Header
o One Ultra320 68-pin SCSI Connector (Channel A) (SCSI SKU only)
o Two SATA connectors with integrated chipset RAID 0/1 support
o One ATA100 connector
o One floppy connector
o SSI-compliant (34-pin) and custom control panel headers (50-pin and 100-pin)
o SSI-compliant 24-pin main power connector. This supports ATX-12V standard in
the first 20 pins
o Intel® Management Module (IMM) connector supporting both Professonal Edition
and Advanced Edition management modules
•
•
Intel® Light-Guided Diagnostics on all FRU devices (processors, memory, power)
Port-80 Diagnostic LEDs displaying POST codes
The following figure shows the board layout of the Server Board SE7520JR2. Each connector
and major component is identified by number and is identified in Table 1.
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Intel® Server Board SE7520JR2
Server Board Overview
3
7
8
9
10
4
6
5
1
2
11
13
14
12
17
15
16
18
19
22
23
21
20
24
25
27
26
28
29
35
30
31
34
33
32
36
40
39
38
37
Figure 1. SE7520JR2 Board Layout
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Server Board Overview
Intel® Server Board SE7520JR2
Table 1: Baseboard Layout Reference
Ref # Description
Ref #
Description
(J1A1) 2-Pin Chassis Intrusion Header
(J1A2) 2-Pin Hard Drive Act LED Header
(J1A4) Rolling BIOS Jumper
10-Pin DH10 Serial A Header
Ext SCSI Channel B Connector
USB Port 2
1
22
CPU #2 Fan Header
2
3
4
5
6
7
8
23
24
25
26
27
28
29
CPU #1 Fan Header
5-pin Power Sense Header
PXH – Chipset Component
CPU #2 Socket
USB Port 1
Video Connector
CPU #1 Socket
NIC #2
ICH5-R – Chipset Component
SATA Ports
NIC #1
(J1H2) Recovery Boot Jumper
(J1H3) Password Clear Jumper
(J1H4) CMOS Clear Jumper
Legacy ATA-100 connector
50-pin Control Panel Header
100-pin Control Panel, Floppy, IDE Connector
Legacy Floppy Connector
SSI 34-pin Control Panel Header
8-Pin AUX Power Connector
24-Pin Main Power Connector
SSI System Fan Header
9
RJ-45 Serial B Port
30
10
11
12
13
14
15
16
17
18
19
20
21
Stacked PS/2 Keyboard and Mouse Ports
Intel Management Module Connector
CMOS Battery
31
32
33
34
35
36
37
38
39
40
Full Height Riser Card Slot
Low Profile Riser Card Slot
DIMM Slots
68-pin SCSI Channel A Connector
LSI 53C1030 SCSI Controller
MCH – Chipset Component
1x10 USB Header
SR1400/SR2400 System Fan Header
Processor Voltage Regulator Circuitry
2x5 USB Header
ATI RageXL Video Controller
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Server Board Overview
The following mechanical drawing shows the physical dimensions of the baseboard.
Figure 2. Server Board Dimensions
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Functional Architecture
Intel® Server Board SE7520JR2
3. Functional Architecture
This chapter provides a high-level description of the functionality associated with the
architectural blocks that make up the Intel Server Board SE7520JR2.
Note: This document describes the features and functionality of the Server Board SE7520JR2
when using standard on-board platform instrumentation. Some functionality and feature
descriptions change when using either the Professional Edition or Advanced Edition Intel
Management Modules. Functional changes when either of these two options are used are
described in a separate document.
Figure 3. Server Board SE7520JR2 Block Diagram
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Functional Architecture
3.1 Processor Sub-system
The support circuitry for the processor sub-system consists of the following:
•
•
•
•
•
•
•
Dual 604-pin zero insertion force (ZIF) processor sockets
Processor host bus AGTL+ support circuitry
Reset configuration logic
Processor module presence detection logic
BSEL detection capabilities
CPU signal level translation
Common Enabling Kit (CEK) CPU retention support
3.1.1
Processor Voltage Regulators
The baseboard has two VRDs (Voltage Regulator Devices) providing the appropriate voltages
to the installed processors. Each VRD is compliant with the VRD 10.1 specification and is
designed to support Intel® Xeon™ processors that require up to a sustained maximum of 105
AMPs and peak support of 120A.
The baseboard supports the current requirements and processor speed requirements defined in
the Flexible Mother Board (FMB) specification for all 800 MHz FSB Intel Xeon processors. FMB
is an estimation of the maximum values the 800 MHz FSB versions of the Intel Xeon processors
will have over their lifetime. The value is only an estimate and actual specifications for future
processors may differ. At present, the current demand per FMB is a sustained maximum of a
105 Amps and peak support of 120 Amps.
3.1.2
Reset Configuration Logic
The BIOS determines the processor stepping, cache size, etc through the CPUID instruction. All
processors in the system must operate at the same frequency; have the same cache sizes; and
same VID. No mixing of product families is supported. Processors run at a fixed speed and
cannot be programmed to operate at a lower or higher speed.
3.1.3
Processor Module Presence Detection
Logic is provided on the baseboard to detect the presence and identity of installed processors.
In dual-processor configurations, the on-board mini Baseboard Management Controller (mBMC)
must read the processor voltage identification (VID) bits for each processor before turning on
the VRD. If the VIDs of the two processors are not identical, then the mBMC will not turn on the
VRD. Prior to enabling the embedded VRD, circuitry on the baseboard ensures that the
following criteria are met:
•
•
•
In a uni-processor configuration, CPU 1 is installed
Only supported processors are installed in the system to prevent damage to the MCH
In dual processor configurations, both processors support the same FSB frequency
3.1.4
GTL2006
The GTL2006 is a 13-bit translator designed for 3.3V to GTL/GTL+ translations to the system
bus. The translator incorporates all the level shifting and logic functions required to interface
between the processor subsystem and the rest of the system.
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Functional Architecture
Intel® Server Board SE7520JR2
3.1.5
Common Enabling Kit (CEK) Design Support
The baseboard has been designed to comply with Intel’s Common Enabling Kit (CEK)
processor mounting and heat sink retention solution. The baseboard will ship with a CEK spring
snapped onto the bottom side of the board beneath each processor socket. The CEK spring is
removable, allowing for the use of non-Intel heat sink retention solutions.
Heatsink assembly with
integrated hardware
Thermal Interface
Material (TIM)
Baseboard
CEK Spring
Chassis
Figure 4. CEK Processor Mounting
3.1.6
Processor Support
The Server Board SE7520JR2 is designed to support one or two Intel® Xeon™ processors
utilizing an 800 MHz front side bus with frequencies starting at 2.8 GHz. Previous generations of
Intel Xeon processor are not supported on the Server Board SE7520JR2.
The server board is designed to provide up to 120A peak per processors. Processors with
higher current requirements are not supported.
Note: Only Intel® Xeon™ processors that support an 800MHz Front Side Bus are supported on
the Server Board SE7520JR2. See the following table for a list of supported processors and
their operating frequencies.
Table 2: Processor Support Matrix
Processor Family
FSB Frequency Frequency
Support
Intel® Xeon™
533 MHz
533 MHz
533 MHz
800 MHz
800 MHz
2.8 GHz
3.06 GHz
3.2 GHz
2.8 GHz
3.0 GHz
No
No
No
Intel® Xeon™
Intel® Xeon™
Intel® Xeon™
Intel® Xeon™
Yes
Yes
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Intel® Server Board SE7520JR2
Functional Architecture
Processor Family
FSB Frequency Frequency
Support
Yes
Intel® Xeon™
Intel® Xeon™
Intel® Xeon™
800 MHz
800 MHz
800 MHz
3.2 GHz
3.4 GHz
3.6 GHz
Yes
Yes
3.1.6.1
Processor Mis-population Detection
The processors must be populated in the correct order for the processor front-side bus to be
correctly terminated. CPU socket 1 must be populated before CPU socket 2. Baseboard logic
will prevent the system from powering up if a single processor is present but it is not in the
correct socket. This protects the logic against voltage swings or unreliable operation that could
occur on an incorrectly terminated front-side bus.
If processor mis-population is detected when using standard on-board platform instrumentation,
the mBMC will log an error against processor 1 to the System Event Log; Configuration Error,
and the baseboard hardware will illuminate both processor error LEDs. If an IMM (Professional
or Advanced editions) is used in systems, the Sahalee BMC will generate a series of beep
codes when this condition is detected and the BMC will illuminate the processor 1 fault LED.
3.1.6.2
Mixed Processor Steppings
For optimum system performance, only identical processors should be installed in a system.
Processor steppings within a common processor family can be mixed in a system provided that
there is no more than a 1 stepping difference between them. If the installed processors are
more than 1 stepping apart, an error is reported. Acceptable mixed steppings are not reported
as errors by the BIOS.
3.1.6.3
Mixed Processor Models
Processor models cannot be mixed in a system. If this condition is detected an error (8196) is
logged in the SEL. An example of a faulty processor configuration may be when one installed
processor supports a 533MHz front side bus while the other supports an 800MHz front side bus.
3.1.6.4
Mixed Processor Families
Processor families cannot be mixed in a system. If this condition is detected an error (8194) is
logged in the SEL.
3.1.6.5
Mixed Processor Cache Sizes
If the installed processors have mixed cache sizes, an error (8192) will be logged in the SEL
and an error (196) is reported to the Management Module. The size of all cache levels must
match between all installed processors. Mixed cache processors are not supported.
3.1.6.6
Jumperless Processor Speed Settings
The Intel® XeonTM processor does not utilize jumpers or switches to set the processor
frequency. The BIOS reads the highest ratio register from all processors in the system. If all
processors are the same speed, the Actual Ratio register is programmed with the value read
from the High Ratio register. If all processors do not match, the highest common value between
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Intel® Server Board SE7520JR2
High and Low Ratio is determined and programmed to all processors. If there is no value that
works for all installed processors, all processors not capable of speeds supported by the BSP
are disabled and an error is displayed.
3.1.6.7
Microcode
IA-32 processors have the capability of correcting specific errata through the loading of an Intel-
supplied data block (i.e., microcode update). The BIOS is responsible for storing the update in
non-volatile memory and loading it into each processor during POST. The BIOS allows a
number of microcode updates to be stored in the flash, limited by the amount of free space
available. The BIOS supports variable size microcode updates. The BIOS verifies the
signature prior to storing the update in the flash.
3.1.6.8
Processor Cache
The BIOS enables all levels of processor cache as early as possible during POST. There are no
user options to modify the cache configuration, size or policies. The largest and highest level
cache detected is reported in BIOS Setup.
3.1.6.9
Hyper-Threading Technology
Intel® XeonTM processors support Hyper-Threading Technology. The BIOS detects processors
that support this feature and enables the feature during POST. BIOS Setup provides an option
to selectively enable or disable this feature. The default behavior is “Enabled”.
The BIOS creates additional entries in the ACPI MP tables to describe the virtual processors.
The SMBIOS Type 4 structure shows only the physical processors installed. It does not
describe the virtual processors because some operating systems are not able to efficiently
utilize the Hyper-Threading Technology.
3.1.6.10
Intel® SpeedStep® Technology
Intel®Xeon™ processors support the Geyserville3 (GV3) (whether Geyserville3 is an Intel
internal code name?) feature of the Intel® SpeedStep® Technology. This feature changes the
processor operating ratio and voltage similar to the Thermal Monitor 2 (TM2) feature. It must be
used in conjunction with the TM1 or TM2 feature. The BIOS implements the GV3 feature in
conjunction with the TM2 feature.
3.1.6.11
EM64T Technology Support
The system BIOS on the Server Board SE7520JR2 supports the Intel Extended Memory 64
technology (EM64T) of the Intel® Xeon™ Processors. There is no BIOS setup option to enable
or disable this support. The system will be in IA-32 compatibility mode when booting to an OS.
To utilize this feature, a 64-bit capable OS and OS specific drivers are needed.
3.1.7
Multiple Processor Initialization
IA-32 processors have a microcode-based bootstrap processor (BSP) arbitration protocol. On
reset, all of the processors compete to become the BSP. If a serious error is detected during its
Built-in Self-Test (BIST), that processor does not participate in the initialization protocol. A
single processor that successfully passes BIST is automatically selected by the hardware as the
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Functional Architecture
BSP and starts executing from the reset vector (F000:FFF0h). A processor that does not
perform the role of BSP is referred to as an application processor (AP).
The BSP is responsible for executing the BIOS power-on self-test (POST) and preparing the
machine to boot the operating system. At boot time, the system is in virtual wire mode and the
BSP alone is programmed to accept local interrupts (INTR driven by programmable interrupt
controller (PIC) and non-maskable interrupt (NMI)).
As a part of the boot process, the BSP enables the application processor. When enabled, the
AP programs its Memory Type Range Registers (MTRRs) to be identical to those of the BSP.
The AP executes a halt instruction with its local interrupts disabled. If the BSP determines that
an AP exists that is a lower-featured processor or that has a lower value returned by the CPUID
function, the BSP switches to the lowest-featured processor in the system.
3.1.8
CPU Thermal Sensors
The CPU temperature will be indirectly measured via thermal diodes. These are monitored by
the LM93 sensor monitoring device. The mBMC configures the LM93 to monitor these sensors.
The temperatures are available via mBMC IPMI sensors.
3.1.9
Processor Thermal Control Sensor
The Intel Xeon processors generate a signal to indicate throttling due to a processor over temp
condition. The mBMC implements an IPMI sensor that provides the percentage of time a
processor has been throttled over the last 1.46 seconds. Baseboard management forces a
thermal control condition when reliable system operation requires reduced power consumption.
3.1.10
Processor Thermal Trip Shutdown
If a thermal overload condition exists (thermal trip), the processor outputs a digital signal that is
monitored by the baseboard management sub-system. A thermal trip is a critical condition and
indicates that the processor may become damaged if it continues to run. To help protect the
processor, the management controller automatically powers off the system. In addition the
System Status LED will change to Amber and the error condition will be logged to the System
Event Log (SEL).
If either the Intel Management Module Professional Edition or Advanced Edition is present in the
system, the Fault LED fro the affected processor will also be illuminated.
3.1.11
Processor IERR
The IERR signal is asserted by the processor as the result of an internal error. The mBMC
configures the LM93 device to monitor this signal. When this signal is asserted, the mBMC
generates a processor IERR event.
3.2 Intel® E7520 Chipset
The architecture of the Server Board SE7520JR2 is designed around the Intel E7520 chipset.
The chipset consists of three components that together are responsible for providing the
interface between all major sub-systems found on the baseboard, including the processor,
memory, and I/O sub-systems. These components are:
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•
•
Memory Controller Hub (MCH)
I/O Controller Hub (ICH5-R)
•
PCI-X Hub (PXH)
The following sub-sections provide an overview of the primary functions and supported features
of each chipset component as they are used on the Server Board SE7520JR2. Later sections in
this chapter provide more detail on the implementation of the sub-systems.
3.2.1
Memory Controller Hub (MCH)
The MCH integrates four functions into a single 1077-ball FC-BGA package:
•
•
•
•
Front Side Bus
Memory Controller
PCI-Express Controller
Hub Link Interface
3.2.1.1
Front Side Bus (FSB)
The E7520 MCH supports either single or dual processor configurations using 800MHz FSB
Intel Xeon processors. The MCH supports a base system bus frequency of 200 MHz. The
address and request interface is double pumped to 400 MHz while the 64-bit data interface
(+ parity) is quad pumped to 800 MHz. This provides a matched system bus address and data
bandwidths of 6.4 GB/s
3.2.1.2
MCH Memory Sub-System Overview
The MCH provides an integrated memory controller for direct connection to two channels of
registered DDR-266, DDR-333 or DDR2-400 memory (stacked or unstacked). Peak theoretical
memory data bandwidth using DDR266 technology is 4.26 GB/s and 5.33 GB/S for DDR333
technology. For DDR2-400 technology, this increases to 6.4 GB/s.
Several RASUM (Reliability, Availability, Serviceability, Usability, and Manageability) features
are provided by the E7520 MCH memory interface.
•
•
Memory mirroring allows two copies of all data in the memory subsystem to be maintained
(one on each channel).
DIMM sparing allows one DIMM per channel to be held in reserve and brought on-line if
another DIMM in the channel becomes defective. DIMM sparing and memory mirroring are
mutually exclusive.
•
•
•
Hardware periodic memory scrubbing, including demand scrub support.
Retry on uncorrectable memory errors.
x4 SDDC for memory error detection and correction of any number of bit failures in a single
x4 memory device.
3.2.1.3
PCI Express
The E7520 MCH is the first Intel chipset to support the new PCI Express* high-speed serial I/O
interface for superior I/O bandwidth. The scalable PCI Express interface complies with the PCI
Express Interface Specification, Rev 1.0a. On the Server Board SE7520JR2, two of the three
available x8 PCI Express interfaces are used, each with a maximum theoretical bandwidth of 4
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GB/s. One x8 interface is used as the interconnect between the MCH and PXH, while the other
is configured as two separate x4 interfaces to the full height riser slot.
The E7520 MCH is a root class component as defined in the PCI Express Interface
Specification, Rev 1.0a. The PCI Express interfaces of the MCH support connection to a variety
of bridges and devices compliant with the same revision of the specification. Refer to the Server
Board SE7520JR2 Tested Hardware and OS List for the add-in cards tested on this platform.
3.2.1.4
Hub Interface
The MCH interfaces with the Intel 82801ER I/O Controller Hub 5-R (ICH5-R) via a dedicated
Hub Interface which supports a peak bandwidth of 266MB/s using a x4 base clock of 66 MHz.
3.2.2
PCI-X Hub (PXH)
The PXH provides the data interface between the MCH and two PCI-X bus segments over a
high-speed PCI-Express x8 link. The PCI-Express interface is compliant with the PCI Express
Base Specification rev 1.0 and provides a maximum realized bandwidth of 2GB/s in each
direction simultaneously, for an aggregate of 4 GB/s.
The PCI-X interfaces of the PXH comply with the following:
•
•
PCI-X Addendum to the PCI Local Bus Specification Revision 1.0b
Mode 1 of the PCI-X Electrical and Mechanical Addendum to the PCI Local Bus
Specification Revision 2.0a
•
PCI-X Protocol Addendum to the PCI Local Bus Specification Revision 2.0a
For conventional PCI Mode, the PXH supports PCI bus frequencies of 66 MHz, 100 MHz, and
133 MHz.
On the Server Board SE7520JR2 each of the two PCI-X interfaces (PCI Bus A and PCI Bus B)
is independently controlled to operate in either a conventional PCI or PCI-X mode. PCI Bus A is
routed to control I/O from the full-height riser slot and the LSI* 53C1030 Dual Channel SCSI
controller and is capable of supporting both PCI-X Mode 1 and Mode 2 interfaces depending on
the riser card used. PCI Bus B is routed to control I/O from the low profile riser slot and the
82546GB Dual GB Ethernet controllers.
3.2.2.1
Full-height Riser Slot
Using Intel® Adaptive Slot Technology, the full height riser slot is a proprietary 280-pin slot
connector with both PCI-X signals from the PXH and PCI-Express signals from the MCH routed
to it. Depending on the riser card used, the slot is able to support both PCI-X and/or PCI-
Express add-in cards. The board placement of this slot allows risers to support full-height, full-
length add-in cards.
3.2.2.2
Low Profile Riser Slot
The low profile riser slot is a standard 202-pin slot connector supporting PCI-X signals from the
PXH. Because of available board clearances, riser cards can only support low-profile add-in
cards with this slot.
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3.2.2.3
I/OxAPIC Controller
The PXH contains two I/OxAPIC controllers, both of which reside on the primary bus. The
intended use of these controllers is to have the interrupts from PCI bus A connected to the
interrupt controller on device 0, function 1 and have the interrupts on PCI bus B connected to
the interrupt controller on device 0, function 3.
3.2.2.4
SMBus Interface
The SMBus interface can be used for system and power management related tasks. The
interface is compliant with System Management Bus Specification Revision 2.0. The SMBus
interface allows full read/write access to all configuration and memory spaces in the PXH.
3.2.3
I/O Controller Hub (ICH5-R)
The ICH5-R is a multi-function device providing an upstream hub interface for access to several
embedded I/O functions and features including:
•
•
•
•
•
•
PCI Local Bus Specification, Revision 2.3 with support for 33 MHz PCI operations.
ACPI power management logic support
Enhanced DMA controller, interrupt controller, and timer functions
Integrated IDE controller with support for Ultra ATA100/66/33
Integrated SATA controller
USB host interface with support for eight USB ports; four UHCI host controllers; one EHCI
high-speed USB 2.0 host controller
System Management Bus (SMBus) Specification, Version 2.0 with additional support for I2C
devices
•
•
•
Low Pin Count (LPC) interface
Firmware Hub (FWH) interface support
Each function within the ICH5-R has its own set of configuration registers. Once configured,
each appears to the system as a distinct hardware controller sharing the same PCI bus
interface.
3.2.3.1
PCI Interface
The ICH5-R PCI interface provides a 33 MHz, Revision 2.3 compliant implementation. All PCI
signals are 5-V tolerant, except PME#. The ICH5 integrates a PCI arbiter that supports up to six
external PCI bus masters in addition to the internal ICH5 requests. On the Server Board
SE7520JR2 this PCI interface is used to support on-board PCI devices including the ATI* video
controller, Super I/O chip, and hardware monitoring sub-system.
3.2.3.2
IDE Interface (Bus Master Capability and Synchronous DMA Mode)
The fast IDE interface supports up to four IDE devices, providing an interface for IDE hard disks
and ATAPI devices. Each IDE device can have independent timings. The IDE interface supports
PIO IDE transfers up to 16 Mbytes/sec and Ultra ATA transfers up 100 Mbytes/sec. It does not
consume ISA DMA resources. The IDE interface integrates 16x32-bit buffers for optimal
transfers. The ICH5-R’s IDE system contains two independent IDE signal channels. They can
be electrically isolated independently. They can be configured to the standard primary and
secondary channels (four devices). The Server Board SE7520JR2 provides interfaces to both
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IDE channels of the ICH5R. One channel is accessed through the 40-pin connector on the
baseboard. The signals of the second channel are routed to the 100-pin backplane connector
for use in either the Intel Server Chassis SR1400 or SR2400 when integrated with a backplane
for slim-line optical drive use.
3.2.3.3
SATA Controller
The SATA controller supports two SATA devices, providing an interface for SATA hard disks
and ATAPI devices. The SATA interface supports PIO IDE transfers up to 16 Mb/s and Serial
ATA transfers up to 1.5 Gb/s (150 MB/s). The ICH5-R’s SATA system contains two independent
SATA signal ports. They can be electrically isolated independently. Each SATA device can have
independent timings. They can be configured to the standard primary and secondary channels.
3.2.3.4
Low Pin Count (LPC) Interface
The ICH5-R implements an LPC Interface as described in the Low Pin Count Interface
Specification, Revision 1.1. The Low Pin Count (LPC) bridge function of the ICH5-R resides in
PCI Device 31:Function 0. In addition to the LPC bridge interface function, D31:F0 contains
other functional units including DMA, interrupt controllers, timers, power management, system
management, GPIO, and RTC.
3.2.3.5
Compatibility Modules (DMA Controller, Timer/Counters, Interrupt
Controller)
The DMA controller incorporates the logic of two 82C37 DMA controllers, with seven
independently programmable channels. Channels 0–3 are hardwired to 8-bit, count-by-byte
transfers, and channels 5–7 are hardwired to 16-bit, count-by-word transfers. Any two of the
seven DMA channels can be programmed to support fast Type-F transfers.
The ICH5-R supports two types of DMA: LPC and PC/PCI. LPC DMA and PC/PCI DMA use the
ICH5-R’s DMA controller. The PC/PCI protocol allows PCI-based peripherals to initiate DMA
cycles by encoding requests and grants via two PC/PC REQ#/GNT# pairs. LPC DMA is handled
through the use of the LDRQ# lines from peripherals and special encoding on LAD[3:0] from the
host. Single, Demand, Verify, and Increment modes are supported on the LPC interface.
Channels 0–3 are 8 bit channels. Channels 5–7 are 16 bit channels. Channel 4 is reserved as a
generic bus master request.
The timer/counter block contains three counters that are equivalent in function to those found in
one 82C54 programmable interval timer. These three counters are combined to provide the
system timer function, and speaker tone. The 14.31818 MHz oscillator input provides the clock
source for these three counters.
The ICH5-R provides an ISA-compatible Programmable Interrupt Controller (PIC) that
incorporates the functionality of two 82C59 interrupt controllers. The two interrupt controllers are
cascaded so 14 external and two internal interrupts are possible. In addition, the ICH5-R
supports a serial interrupt scheme. All of the registers in these modules can be read and
restored. This is required to save and restore the system state after power has been removed
and restored to the platform.
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3.2.3.6
Advanced Programmable Interrupt Controller (APIC)
In addition to the standard ISA-compatible PIC described in the previous section, the ICH5-R
incorporates the Advanced Programmable Interrupt Controller (APIC).
3.2.3.7
Universal Serial Bus (USB) Controller
The ICH5-R contains an Enhanced Host Controller Interface (EHCI) for Universal Serial Bus,
Revision 1.0-compliant host controller that supports USB high-speed signaling. The high-speed
USB 2.0 allows data transfers up to 480 Mb/s, which is 40 times faster than full-speed USB.
The ICH5-R also contains four Universal Host Controller Interface (UHCI) controllers that
support USB full-speed and low-speed signaling. On the Server Board SE7520JR2, the ICH5-R
provides six USB 2.0 ports. All six ports are high-speed, full-speed, and low-speed capable.
ICH5-R’s port-routing logic determines whether a USB port is controlled by one of the UHCI
controllers or by the EHCI controller.
3.2.3.8
RTC
The ICH5-R contains a Motorola* MC146818A-compatible real-time clock with 256 bytes of
battery backed RAM. The real-time clock performs two key functions: keeping track of the time
of day and storing system data, even when the system is powered down. The RTC operates on
a 32.768 KHz crystal and a separate 3 V lithium battery.
The RTC supports two lockable memory ranges. By setting bits in the configuration space, two
8-byte ranges can be locked to read and write accesses. This prevents unauthorized reading of
passwords or other system security information.
The RTC supports a date alarm that allows for scheduling a wake up event up to 30 days in
advance.
3.2.3.9
General Purpose I/O (GPIO)
Various general-purpose inputs and outputs are provided for custom system design. The
number of inputs and outputs varies depending on the ICH5-R configuration. All unused GPI
pins are either pulled high or low, so that they are at a predefined level and do not cause undue
side effects.
3.2.3.10
Enhanced Power Management
The ICH5-R’s power management functions include enhanced clock control, local and global
monitoring support for 14 individual devices, and various low-power (suspend) states, such as
Suspend-to-DRAM and Suspend-to-Disk. A hardware-based thermal management circuit
permits software-independent entrance to low-power states. The ICH5-R contains full support
for the Advanced Configuration and Power Interface (ACPI) Specification, Revision 2.0b.
3.2.3.11
System Management Bus (SMBus 2.0)
The ICH5-R contains an SMBus host interface that allows the processor to communicate with
SMBus slaves. This interface is compatible with most I2C devices. Special I2C commands are
implemented. The ICH5-R’s SMBus host controller provides a mechanism for the processor to
initiate communications with SMBus peripherals (slaves).
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The ICH5-R supports slave functionality, including the Host Notify protocol. Hence, the host
controller supports eight command protocols of the SMBus interface: Quick Command, Send
Byte, Receive Byte, Write Byte/Word, Read Byte/Word, Process Call, Block Read/Write, and
Host Notify. See the System Management Bus (SMBus) Specification, Version 2.0 for more
information.
3.3 Memory Sub-System
The MCH provides an integrated memory controller for direct connection to two channels of
registered DDR-266, DDR-333 or DDR2-400 memory (stacked or unstacked). Peak theoretical
memory data bandwidth using DDR266 technology is 4.26 GB/s and 5.33 GB/S for DDR333
technology. For DDR2-400 technology, this increases to 6.4 GB/s
The MCH supports a burst length of four, whether in single or dual channel mode. In dual
channel mode this results in eight 64-bit chunks (64-byte cache line) from a single read or write.
In single channel mode, two reads or writes are required to access a cache line of data.
3.3.1
Memory Sizing
The memory controller is capable of supporting up to 4 loads per channel for DDR-333 and
DDR2-400. Memory technologies are classified as being either single rank or dual rank
depending on the number of DRAM devices that are used on any one DIMM. A single rank
DIMM is a single load device, ie) Single Rank = 1 Load. Dual rank DIMMs are dual load
devices, ie) Dual Rank = 2 loads.
The Server Board SE7520JR2 provides the following maximum memory capacities based on
the number of DIMM slots provided and maximum supported memory loads by the chipset:
•
•
24GB maximum capacity for DDR-266
16GB maximum capacity for DDR-333 and DDR2-400
The minimum memory supported with the system running in single channel memory mode is:
256MB for DDR-266, DDR-333 and DDR2-400
•
Supported DIMM capacities are as follows:
•
•
•
DDR-266 Memory DIMM sizes include: 256MB, 512MB, 1GB, 2GB, and 4GB.
DDR-333 Memory DIMM sizes include: 256MB, 512MB, 1GB, 2GB, and 4GB.
DDR2-400 Memory DIMM sizes include: 256MB, 512MB, 1GB, 2GB, and 4GB.
DIMM Module Capacities:
SDRAM Parts / SDRAM Technology Used
X8, single row
128Mb
128MB
256Mb
256MB
512Mb
512MB
1Gb
1GB
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Intel® Server Board SE7520JR2
X8, double row
X4, single row
256MB
256MB
512MB
512MB
512MB
1GB
1GB
1GB
2GB
2GB
2GB
4GB
X4, Stacked, double row
DIMMs on channel ‘A’ are paired with DIMMs on channel ‘B’ to configure 2-way interleaving.
Each DIMM pair is referred to as a bank. The bank can be further divided into two rows, based
on single-sided or double-sided DIMMs. If both DIMMs in a bank are single-sided, only one row
is said to be present. For double-sided DIMMs, both rows are said to be present.
The Server Board SE7520JR2 has six DIMM slots, or three DIMM banks. Both DIMMs in a bank
should be identical (same manufacturer, CAS latency, number of rows, columns and devices,
timing parameters etc.). Although DIMMs within a bank must be identical, the BIOS supports
various DIMM sizes and configurations allowing the banks of memory to be different. Memory
sizing and configuration is guaranteed only for qualified DIMMs approved by Intel.
MCH
3A
3B
2A
2B
1A
1B
Bank 3
Bank 2
Bank 1
Figure 5. Identifying Banks of Memory
The BIOS reads the Serial Presence Detect (SPD) SEEPROMs on each installed memory
module to determine the size and timing of the installed memory modules. The memory-sizing
algorithm determines the size of each bank of DIMMs. The BIOS programs the Memory
Controller in the chipset accordingly. The total amount of configured memory can be found
using BIOS Setup.
3.3.2
Memory Population
Mixing of DDR-266 and DDR-333 DIMMs is supported between banks of memory. However,
when mixing DIMM types, DDR-333 will run at DDR-266 speeds.
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Using the following algorithm, BIOS configures the memory controller of the MCH to run in
either dual channel mode or single channel mode:
(1) If 1 or more fully populated DIMM banks are detected, the memory controller is set to
dual channel mode. Otherwise, go to step (2)
(2) If DIMM 1A is present, set memory controller to single channel mode A. Otherwise,
go to step (3)
(3) If Channel 1B DIMM is present, set memory controller to single channel mode B.
Otherwise, generate a memory configuration error
DDR-266 & DDR-333 DIMM population rules are as follows:
(1) DIMM banks must be populated in order starting with the slots furthest from MCH
(2) Single rank DIMMs must be populated before dual rank DIMMs
(3) A maximum of four DIMMs can be populated when all four DIMMs are dual rank DDR-333
DIMMs.
DDR2 400 DIMM population rules are as follows:
(1) DIMMs banks must be populated in order starting with the slots furthest from MCH
(2) Dual rank DIMMs are populated before single rank DIMMs
(3) A maximum of four DIMMs can be populated when all four DIMMs are dual rank DDR2-400
DIMMs
The following tables show the supported memory configurations.
•
•
•
s/r = single rank
d/r = dual rank
E = Empty
Table 3: Supported DDR-266 DIMM Populations
Bank 3 – DIMMs 3A, 3B
Bank 2 – DIMMs 2A, 2B
Bank 1 – DIMMs 1A, 1B
S/R
S/R
S/R
E
E
S/R
E
S/R
S/R
D/R
D/R
D/R
S/R
S/R
S/R
D/R
E
D/R
D/R
E
MCH
MCH
E
D/R
D/R
E
S/R
D/R
D/R
Table 4: Supported DDR-333 DIMM Populations
Bank 3 – DIMMs 3A, 3B
Bank 2 – DIMMs 2A, 2B2
Bank 1 – DIMMs 1A, 1B
S/R
S/R
S/R
E
E
S/R
E
S/R
S/R
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E
E
D/R
E
D/R
D/R
S/R
S/R
D/R
E
S/R
D/R
Table 5: Supported DDR2-400 DIMM Populations
Bank 3 – DIMMs 3A, 3B
Bank 2 – DIMMs 2A, 2B
Bank 1 – DIMMs 1A, 1B
S/R
S/R
S/R
E
E
S/R
E
S/R
S/R
D/R
D/R
D/R
D/R
MCH
E
D/R
E
E
E
S/R
S/R
S/R
Note: On the Server Board SE7520JR2, when using all dual rank DDR-333 or DDR2-400
DIMMs, a total of four DIMMs can be populated. Configuring more than four dual rank DDR-
333 or DDR2-400 DIMMs will result in the BIOS generating a memory configuration error.
Note: Memory between 4GB and 4GB minus 512MB will not be accessible for use by the
operating system and may be lost to the user, because this area is reserved for BIOS, APIC
configuration space, PCI adapter interface, and virtual video memory space. This means that if
4GB of memory is installed, 3.5GB of this memory is usable. The chipset should allow the
remapping of unused memory above the 4GB address, but this memory may not be accessible to
an operating system that has a 4GB memory limit.
3.3.3
ECC Memory Initialization
ECC memory must be initialized by the BIOS before it can be used. The BIOS must initialize all
memory locations before using them. The BIOS uses the auto-initialize feature of the MCH to
initialize ECC. ECC memory initialization cannot be aborted and may result in a noticeable delay
in the boot process depending on the amount of memory installed in the system.
3.3.4
Memory Test
System memory is classified as base and extended memory. Base memory is memory that is
required for POST. Extended memory is the remaining memory in the system. Extended
memory may be contiguous or may have one or more holes. The BIOS memory test accesses
all memory except for memory holes.
Memory testing consists of separate base and extended memory tests. The base memory test
runs before video is initialized to verify memory required for POST. The BIOS enables video as
early as possible during POST to provide a visual indication that the system is functional. At
some time after video output has been enabled, BIOS executes the extended memory test. The
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status of the extended memory test is displayed on the console. The status of base and
extended memory tests are also displayed on an LCD control panel if present.
The extended memory test is configured using the BIOS Setup Utility. The coverage of the test
can be configured to one of the following:
•
•
•
Test every location (Extensive)
Test one interleave width per kilo-byte of memory (Sparse)
Test one interleave width per mega-byte of memory (Quick).
The “interleave width” of a memory subsystem is dependent on the chipset configuration. By
default, both the base and extended memory tests are configured to the Disabled setting. The
extended memory test can be aborted by pressing the <Space> key during the test.
3.3.5
Memory Monitoring
Both the baseboard management controller and BIOS provide support for memory inventory,
memory failure LEDs, and failure/state transition events. Memory monitoring features are
supported differently depending on which level of server management is used. The following
table shows how each feature is supported by management level.
Table 6: Memory Monitoring Support by Server Management Level
Memory Feature
Inventory
On-board
Professional
Advanced
No
Yes
Yes
Correctable Error Reporting
Uncorrectable Error Reporting
No
Yes
Yes
Yes
Yes
Yes
With either Professional or Advanced IMMs installed, the Sahalee BMC maintains one sensor
per DIMM. The sensor is IPMI type 21h, Slot/Connector. The Sahalee BMC directly detects the
presence or absence of each DIMM and records this in offset 2 of these sensors.
DIMM failure can be detected at BIOS POST or during system operation. POST detected DIMM
failures or mis-configuration (incompatible DIMM sizes/speeds/etc) cause the BIOS to disable
the failed/affected DIMMs and generate IPMI SEL events, which are sent to the BMC in use.
In addition, using Professional or Advanced IMMs, the BIOS communicates this failure to the
Sahalee BMC so that it can be incorporated in the BMC’s DIMM sensor state. DIMM presence
and failure states are stored persistently by the Sahalee BMC.
In all management levels, the BIOS is responsible for DIMM FRU LED management and
illuminates the LEDs associated with failed or disabled DIMMs.
Correctable memory errors are non-critical errors that do not cause the system to fail. They are
detected by the BIOS and are logged as IPMI SEL events when either the Professional or
Advanced IMMs are installed. Logging is throttled by error frequency. If more than a certain
number of correctable errors occur in an hour, logging is turned off.
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Uncorrectable memory errors are critical errors that may cause the system to fail. The BIOS
normally detects and logs these errors as IPMI SEL events for all management levels, except in
the case described below.
It is possible that a critical hardware error (uncorrectable memory or bus error) may prevent the
BIOS from running, reporting the error, and restarting the system. In Professional and Advanced
management models, the Sahalee BMC monitors the SMI signal, which, if it stays asserted for a
long period of time, is an indication that BIOS cannot run. In this case, the Sahalee BMC logs
an SMI Timeout event and probes for errors. If one is found it will log data against the IPMI type
0Ch Memory Sensor and will log against the IPMI 13h Critical Interrupt sensor for a bus error.
Both of these can include additional data in bytes 2 and 3 depending on the exact nature of the
error and what the chipset reports to the Sahalee BMC.
3.3.6
Memory RASUM Features
The Intel E7520 MCH supports several memory RASUM (Reliability, Availability, Serviceability,
Usability, and Manageability) features. These features include the Intel® x4 Single Device Data
Correction (x4 SDDC) for memory error detection and correction, Memory Scrubbing, Retry on
Correctable Errors, Integrated Memory Initialization, DIMM Sparing, and Memory Mirroring. The
following sections describe how each is supported.
Note: The operation of the memory RASUM features listed below is supported regardless of the
platform management model used. However, with no Intel® Management Module installed, the
system has limited memory monitoring and logging capabilities. It is possible for a RASUM
feature to be initiated without notification that the action has occurred when standard Onboard
Platform Instrumentation is used.
3.3.6.1
DRAM ECC – Intel® x4 Single Device Data Correction (x4 SDDC)
The DRAM interface uses two different ECC algorithms. The first is a standard SEC/DED ECC
across a 64-bit data quantity. The second ECC method is a distributed, 144-bit S4EC-D4ED
mechanism, which provides x4 SDDC protection for DIMMS that utilize x4 devices. Bits from x4
parts are presented in an interleaved fashion such that each bit from a particular part is
represented in a different ECC word. DIMMs that use x8 devices, can use the same algorithm
but will not have x4 SDDC protection, since at most only four bits can be corrected with this
method. The algorithm does provide enhanced protection for the x8 parts over a standard SEC-
DED implementation. With two memory channels, either ECC method can be utilized with equal
performance, although single-channel mode only supports standard SEC/DED.
When memory mirroring is enabled, x4 SDDC ECC is supported in single channel mode when
the second channel has been disabled during a fail-down phase. The x4 SDDC ECC is not
supported during single-channel operation outside of DIMM mirroring fail-down as it does have
significant performance impacts in that environment.
3.3.6.2
Integrated Memory Scrub Engine
The Intel E7520 MCH includes an integrated engine to walk the populated memory space
proactively seeking out soft errors in the memory subsystem. In the case of a single bit
correctable error, this hardware detects, logs, and corrects the data except when an incoming
write to the same memory address is detected. For any uncorrectable errors detected, the scrub
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engine logs the failure. Both types of errors may be reported via multiple alternate mechanisms
under configuration control. The scrub hardware will also execute “demand scrub” writes when
correctable errors are encountered during normal operation (on demand reads, rather than
scrub-initiated reads). This functionality provides incremental protection against time-based
deterioration of soft memory errors from correctable to uncorrectable.
Using this method, a 16GB system can be completely scrubbed in less than one day. The effect
of the scrub writes do not cause any noticeable degradation to memory bandwidth, although
they will cause a greater latency for that one very infrequent read that is delayed due to the
scrub write cycle.
Note that an uncorrectable error encountered by the memory scrub engine is a “speculative
error.” This designation is applied because no system agent has specifically requested use of
the corrupt data, and no real error condition exists in the system until that occurs. It is possible
that the error resides in an unmodified page of memory that will be simply dropped on a swap
back to disk. Were that to occur, the speculative error would simply “vanish” from the system
undetected without adverse consequences.
3.3.6.3
Retry on Uncorrectable Error
The Intel E7520 MCH includes specialized hardware to resubmit a memory read request upon
detection of an uncorrectable error. When a demand fetch (as opposed to a scrub) of memory
encounters an uncorrectable error as determined by the enabled ECC algorithm, the memory
control hardware will cause a (single) full resubmission of the entire cache line request from
memory to verify the existence of corrupt data. This feature is expected to greatly reduce or
eliminate the reporting of false or transient uncorrectable errors in the DRAM array.
Note that any given read request will only be retried a single time on behalf of this error
detection mechanism. If the uncorrectable error is repeated, it will be logged and escalated as
directed by device configuration. In the memory mirror mode, the retry on an uncorrectable error
will be issued to the mirror copy of the target data, rather than back to the devices responsible
for the initial error detection. This has the added benefit of making uncorrectable errors in
DRAM fully correctable unless the same location in both primary and mirror happens to be
corrupt. This RASUM feature may be enabled and disabled via configuration.
3.3.6.4
Integrated Memory Initialization Engine
The Intel E7520 MCH provides hardware managed ECC auto-initialization of all populated
DRAM space under software control. Once internal configuration has been updated to reflect
the types and sizes of populated DIMM devices, the MCH will traverse the populated address
space initializing all locations with good ECC. This not only speeds up the mandatory memory
initialization step, but also frees the processor to pursue other machine initialization and
configuration tasks.
Additional features have been added to the initialization engine to support high speed
population and verification of a programmable memory range with one of four known data
patterns (0/F, A/5, 3/C, and 6/9). This function facilitates a limited, very high speed memory test,
as well as provides a BIOS accessible memory zeroing capability for use by the operating
system.
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3.3.6.5
DIMM Sparing Function
To provide a more fault tolerant system, the Intel E7520 MCH includes specialized hardware to
support fail-over to a spare DIMM device in the event that a primary DIMM in use exceeds a
specified threshold of runtime errors. One of the DIMMs installed per channel, greater than or
equal in size than all installed, will not be used but kept in reserve. In the event of significant
failures in a particular DIMM, it and its corresponding partner in the other channel (if applicable),
will, over time, have its data copied over to the spare DIMM(s) held in reserve. When all the
data has been copied, the reserve DIMM(s) will be put into service and the failing DIMM will be
removed from service. Only one sparing cycle is supported. If this feature is not enabled, then
all DIMMs will be visible in normal address space.
Note: The DIMM Sparing feature requires that the spare DIMM be at least the size of the largest
primary DIMM in use.
Hardware additions for this feature include the implementation of tracking register per DIMM to
maintain a history of error occurrence, and a programmable register to hold the fail-over error
threshold level. The operational model is straightforward: if the fail-over threshold register is set
to a non-zero value, the feature is enabled, and if the count of errors on any DIMM exceeds that
value, fail-over will commence. The tracking registers themselves are implemented as “leaky
buckets,” such that they do not contain an absolute cumulative count of all errors since power-
on; rather, they contain an aggregate count of the number of errors received over a running time
period. The “drip rate” of the bucket is selectable by software, so it is possible to set the
threshold to a value that will never be reached by a “healthy” memory subsystem experiencing
the rate of errors expected for the size and type of memory devices in use.
The fail-over mechanism is slightly more complex. Once fail-over has been initiated the MCH
must execute every write twice; once to the primary DIMM, and once to the spare. The MCH will
also begin tracking the progress of its built-in memory scrub engine. Once the scrub engine has
covered every location in the primary DIMM, the duplicate write function will have copied every
data location to the spare. At that point, the MCH can switch the spare into primary use, and
take the failing DIMM off-line.
Note that this entire mechanism requires no software support once it has been programmed and
enabled, until the threshold detection has been triggered to request a data copy. Hardware will
detect the threshold initiating fail-over, and escalate the occurrence of that event as directed
(signal an SMI, generate an interrupt, or wait to be discovered via polling). Whatever software
routine responds to the threshold detection must select a victim DIMM (in case multiple DIMMs
have crossed the threshold prior to sparing invocation) and initiate the memory copy. Hardware
will automatically isolate the “failed” DIMM once the copy has completed. The data copy is
accomplished by address aliasing within the DDR control interface, thus it does not require
reprogramming of the DRAM row boundary (DRB) registers, nor does it require notification to
the operating system that anything has occurred in memory.
The memory mirroring feature and DIMM sparing are exclusive of each other, only one may be
activated during initialization. The selected feature must remain enabled until the next power-
cycle. There is no provision in hardware to switch from one feature to the other without
rebooting, nor is there a provision to “back out” of a feature once enabled without a full reboot.
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3.3.6.6
Memory Mirroring
The memory mirroring feature is fundamentally a way for hardware to maintain two copies of all
data in the memory subsystem, such that a hardware failure or uncorrectable error is no longer
fatal to the system. When an uncorrectable error is encountered during normal operation,
hardware simply retrieves the “mirror” copy of the corrupted data, and no system failure will
occur unless both primary and mirror copies of the same data are corrupt simultaneously.
Mirroring is supported on dual-channel DIMM populations symmetric both across channels and
within each channel. As a result, on the Server Board SE7520JR2 there are two supported
configurations for memory mirroring:
•
Four DIMM population of completely identical devices (two per channel). Refer to Figure 6,
DIMMs labeled 1A, 2A, 1B and 2B must all be identical.
D
I
D
I
D
I
D
I
D
I
D
I
M
M
M
M
M
M
M
M
M
M
M
M
3
3
2
2
1
1
A
B
A
B
A
B
MC
Empt
Mirror Primar
Figure 6. Four DIMM Memory Mirror Configuration
•
Six DIMM population with identical devices in slot pairs 1 and 2/3 on each channel. DIMM
slots labeled 1A, 1B must be populated with identical dual ranked DIMMs, while DIMMs in
the remaining slots must be identical single rank DIMMs. DIMMs between the two groups
do not have to be identical. This configuration is only valid with DDR2 memory.
DDR266/333 mirrored memory configurations are only capable of supporting 2 DIMMs per
channel.
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Intel® Server Board SE7520JR2
D
I
D
I
D
I
D
I
D
I
D
I
M
M
M
M
M
M
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M
M
M
M
M
3
3
2
2
1
1
A
B
A
B
A
B
MC
Mirror Primar Primar
/Mirror
Figure 7. Six DIMM Memory Mirror Configuration (DDR2 Only)
These symmetry requirements are a side effect of the hardware mechanism for maintaining two
copies of all main memory data while ensuring that each channel has a full copy of all data in
preparation for fail-down to single-channel operation. Every write to memory is issued twice,
once to the “primary” location, and again to the “mirror” location, and the data interleaved across
the channel pair are swapped for the second write (1A is a copy of 2B, 1B is a copy of 2A etc.).
The resulting memory image has two full copies of all data, and a complete copy available on
each channel.
Hardware in the MCH tracks which DIMM slots are primaries, and which are mirrors, such that
data may be internally realigned to correctly reassemble cache lines regardless of which copy is
retrieved. There are four distinct cases for retrieval of the “even” and “odd” chunks of a cache-
line of data:
•
•
•
Interleaved dual-channel read to the primary DIMM with “even” data on channel A
Interleaved dual-channel read to the mirror DIMM with “even” data on channel B
Non-interleaved single-channel read pair to channel A with “even” data on the primary
DIMM
•
Non-interleaved single-channel read pair to channel B with “even” data on the mirror DIMM
When mirroring is enabled via MCH configuration, the memory subsystem maintains two copies
of all data as described above, and will retrieve requested data from either primary or mirror
based on the state of system address bit 15 (SA[15]). Software may toggle which SA[15]
polarity selects primary vs. mirror via a configuration register bit setting. SA[15] was chosen
because it is the lowest system address bit that is always used to select the memory row
address across all DRAM densities and technologies supported by the E7520 MCH. The
toggling of the primary read location based on an address bit will distribute request traffic across
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the primary and mirror DIMMs, thereby distributing the thermal image of the workload across all
populated DIMM slots, and reducing the chances of thermal-based memory traffic throttling.
In the “Mirrored” operating state, the occurrence of correctable and uncorrectable ECC errors
are tracked and logged normally by the MCH, and escalated to system interrupt events as
specified by the configuration register settings associated with errors on the memory
subsystem. Counters implementing the “leaky bucket” function just described for on-line DIMM
sparing track the aggregate count of single-bit and multiple-bit errors on a per DIMM basis.
3.3.6.7
Logging Memory RAS Information to the SEL
In systems configured with either a Professional or Advanced IMM, the system BIOS is
responsible for sending the current memory RAS configuration to the Sahalee BMC in
accordance with Sahalee BMC spec.
Note: The operation of the memory RASUM features described is supported regardless of the
platform management model used. However, with no Intel® Management Module installed, the
system has limited memory monitoring and logging capabilities. It is possible for a RASUM
feature to be initiated without notification that the action has occurred when using standard on-
board platform instrumentation.
BIOS will send the initial memory RAS state during POST memory configuration using the SMS
commands. BIOS will update the memory RAS state when memory errors occur that affect the
RAS state using the SMM commands.
3.4 I/O Sub-System
The I/O sub-system is made up of several components:
•
•
The MCH provides the PCI-Express interface to the full-height riser slot
The PXH provides the PCI-X interfaces for the two riser slots, the on-board SCSI controller
and on-board Ethernet controllers
•
The ICH5-R provides the interface for the onboard video controller, super IO chip, and
management sub-system.
This section describes the function of each I/O interface and how they operate on the Server
Board SE7520JR2.
3.4.1
PCI Subsystem
The primary I/O interface for the Server Board SE7520JR2 is PCI, with four independent PCI
bus segments.
•
•
A PCI 33MHz/32-bit bus segment (P32-A) is controlled through the ICH5-R.
Two PCI-X 100MHz/64-bit bus segments (P64-A and P64-B) are controlled through PXH
PCI bridge.
•
One dual x4 PCI-Express (P64-Express) bus segment is controlled from the MCH.
The table below lists the characteristics of the four PCI bus segments.
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Table 7: PCI Bus Segment Characteristics
PCI Bus Segment
P32-A
Voltage
5 V
Width
32-bits 33 MHz
Speed
Type
PCI
PCI I/O Card Slots
None. Internal component use only
Common riser slot capable of supporting full-
length PCI-X or PCI-E add-in cards
P64-A
3.3 V
64-bits 100 MHz
PCI-X
PCI-X
PCI-E
One riser slot supporting only low-profile add-
in cards
P64-B
3.3 V
64-bits 100 MHz
64-bits Dual x4
Common riser slot capable of supporting full-
length PCI-X or PCI-E add-in cards
P64-Express
Differential
3.4.1.1
P32-A: 32-bit, 33-MHz PCI Subsystem
All 32-bit, 33-MHz PCI I/O is directed through the ICH5-R. The 32-bit, 33-MHz PCI segment
provided by the ICH5-R is known as the P32-A segment. The P32-A segment supports the
following embedded devices:
•
•
•
2D/3D Graphics Accelerator: ATI Rage XL Video Controller
SIO Chip: National Semiconductor* PC87417 Super I/O
Hardware monitoring sub-system: SMBUS
3.4.1.2
P64-A and P64-B: 64-bit, 100MHz PCI Subsystem
Two peer 64-bit PCI-X bus segments are directed through the PXH PCI Bridge. The first PCI-X
segment, P64-A, supports the interface for the on-board LSI* 53C1030 Ultra320 SCSI controller,
in addition to supporting up to three PCI-X add-in cards from the full-height PCI riser slot. The
second PCI-X segment, P64-B, supports the interface to the on-board Intel® 82546GB dual port
Gigabit network controller, in addition to up to three PCI-X add-in cards from the low profile PCI
riser slot.
3.4.1.3
P64-Express: Dual x4 PCI Bus Segment
The full height riser slot supports both X4 and X8 PCI-E type widths. In a 2U system, the
baseboard supports two x4 PCI-E slots. In a 1U system, the baseboard supports one x8 PCI-E
slot.
The BIOS performs link training with PCI-E devices during boot and checks the resulting status.
If it detects that a port is not connected to a PCI-E device, it disables the port.
3.4.1.4
PCI Riser Slots
The Server Board SE7520JR2 has two riser slots capable of supporting riser cards for both 1U
and 2U system configurations. Because of board placement resulting in different pin
orientations, and expanded technology support associated with the full-height riser, the riser
slots are proprietary and require different riser cards.
The low profile riser slot (J5F1) utilizes a 202-pin connector. It is capable of supporting up to
three low profile PCI-X add-in cards, depending on the riser card used. The P64-B bus can
support bus speeds of up to 100MHz with up to two PCI-X 100MHz cards installed. The bus
speed will drop to 66MHz when three PCI-X 100MHz cards are installed, or will match the card
speed of the lowest speed card on the bus. Ie) If any of the add-cards installed on the P64B bus
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supports a maximum of 66MHz, the entire bus will throttle down to 66MHz to match the
supported frequency of that card. When populating add-in cards, the add-in cards must be
installed starting with the slot furthest from the baseboard. Ie) When using a three slot riser, a
single PCI-X add-in card must be installed in the top PCI slot. A second add-in card must be
installed in the middle slot, and so on. These population rules must be followed to maintain the
signal integrity of the bus.
The full-height riser slot implements Intel® Adaptive Slot Technology. This 280-pin connector is
capable of supporting riser cards that meet either the PCI-X or PCI-Express technology
specifications. As a PCI-X only bus, using a baseboard with integrated SCSI and passive riser
card, the P64-A bus can support bus speeds of up to 100MHz with up to two PCI-X 100MHz
cards installed. The bus speed will drop to 66MHz when three PCI-X 100MHz cards are
installed, or will match the card speed of the lowest speed card on the bus. Ie) If any of the add-
cards installed on the P64A bus supports a maximum of 66MHz, the entire bus will throttle down
to 66MHz to match the supported frequency of that card. When populating add-in cards, the
add-in cards must be installed starting with the slot furthest from the baseboard. Ie) When using
a three slot passive riser, a single PCI-X add-in card must be installed in the top PCI slot. A
second add-in card must be installed in the middle slot, and so on. These population rules must
be followed to maintain the signal integrity of the bus. On a baseboard with no integrated SCSI,
the P64-A bus is capable of supporting a bus speed of up to 133MHz when a 1U, single slot
riser card is used. I
Intel also makes available an active three slot PCI-X riser which utilizes a separate on board
PXH chip. This riser is capable of supporting up to two PCI-X 133MHz cards in addition to a
third PCI-X 100MHz card. If used in a baseboard with no on-board SCSI controller, the third
add-in slot can also operate at 133MHz.
When configured with a riser card supporting PCI-Express technology, the full height riser slot
can support riser cards that have either one x 8 PCI-Express card, or two x 4 PCI-Express
cards. Intel makes available a 1U single slot x8 riser card and a 2U three slot riser card which
provides two x8 connectors each supporting x4 data widths. The third slot is a PCI-X slot. Using
a baseboard configured with an integrated SCSI controller, the PCI-X add-in slot is capable of
supporting a bus speed of up to 100MHz. Installed in a baseboard with no integrated SCSI
controller, this PCI-X add-in slot is capable of supporting a bus speed of up to 133MHz.
3.4.1.5
PCI Scan Order
The BIOS assigns PCI bus numbers in a depth-first hierarchy, in accordance with the PCI Local
Bus Specification. When a bridge device is located, the bus number is incremented in exception
of a bridge device in the chipsets. Scanning continues on the secondary side of the bridge until
all subordinate buses are defined. PCI bus numbers may change when PCI-PCI bridges are
added or removed. If a bridge is inserted in a PCI bus, all subsequent PCI bus numbers below
the current bus are increased by one.
3.4.1.6
PCI Bus Numbering
PCI configuration space protocol requires that all PCI buses in a system be assigned a bus
number. Bus numbers must be assigned in ascending order within hierarchical buses. Each PCI
bridge has registers containing its PCI bus number and subordinate PCI bus number, which
must be loaded by POST code. The subordinate PCI bus number is the bus number of the last
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hierarchical PCI bus under the current bridge. The PCI bus number and the subordinate PCI
bus number are the same in the last hierarchical bridge.
3.4.1.7
Device Number and IDSEL Mapping
Each device under a PCI bridge has its IDSEL input connected to one bit out of the PCI bus
address/data signals AD[31::11] for the PCI bus. Each IDSEL-mapped AD bit acts as a chip
select for each device on PCI. The host bridge responds to a unique PCI device ID value that,
along with the bus number, cause the assertion of IDSEL for a particular device during
configuration cycles. The following table shows the correspondence between IDSEL values and
PCI device numbers for the PCI bus. The lower five bits of the device number are used in
CONFIG_ADDRESS bits [15::11].
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Table 8: PCI Configuration IDs and Device Numbers
PCI Device
IDSEL
Bus# / Device# / Function#
MCH host-HI bridge/DRAM controller
MCH DRAM Controller Error Reporting
MCH DMA controller
00 / 00 / 0
00/00/1
00/01/00
00/02/00
00/03/00
00/04/00
00/05/00
00/06/00
00/07/00
00/08/00
00 / 30 / 00
00 / 31 / 00
00 / 31 / 01
00 / 31 / 02
00 / 31 / 03
00 / 29 / 00
00 / 29 / 01
00 / 29 / 02
00 / 29 / 07
/ 01 /
MCH EXP Bridge A0
MCH EXP Bridge A1
MCH EXP Bridge B0
MCH EXP Bridge B1
MCH EXP Bridge C0
MCH EXP Bridge C1
MCH Extended Configuration
ICH5R Hub interface to PCI bridge
ICH5R PCI to LPC interface
ICH5R IDE controller
ICH5R Serial ATA
ICH5R SMBus controller
ICH5R USB UHCI controller #1
ICH5R USB UHCI controller #2
ICH5R USB UHCI controller #3
ICH5R USB 2.0 EHCI controller
FL Slot1 (64-bit, PCIX-100)
FL Slot2(64-bit, PCI-X-100)
FL Slot3 (64-bit, PCI-X-100)
FL PXH Slot1
P1A_AD17
P1A_AD18
P1A_AD19
P2A_AD17
P2B_AD17
/ 02 /
/ 03 /
/01/
FL PXH Slot 2
/01/
FL PCI-E x8 Slot1
/00/
FL PCI-E x4 Slot1
/00/
FL PCI-E x4 Slot2
/00/
LP Slot1 (64-bit, PCI-X-100)
LP Slot2 (64-bit, PCI-X-100)
LF Slot3 (64-bit, PCI-X-100)
On board device
P1B_AD17
P1B_AD18
P1B_AD19
/ 01 /
/ 02 /
/ 03 /
Intel 82546GB(1Gb) NIC w/ dual channel P1B_AD20
/ 04 /0,1
/05/0,1
LSI53C1030 Ultra 320 SCSI w/ dual
channel
P1A_AD21
ATI Rage XL (PCI VGA)
PC_AD28
/ 12 /0
Note: Bus Numbers may change depending on the type of riser card used.
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3.4.1.8
Resource Assignment
The resource manager assigns the PIC-mode interrupt for the devices that will be accessed by
the legacy code. The BIOS configures the PCI Base Address Registers (BAR) and the
command register of each device. Software must not make assumptions about the scan order of
devices or the order in which resources are allocated to them. The BIOS supports the INT 1Ah
PCI BIOS interface calls.
3.4.1.9
Automatic IRQ Assignment
The BIOS automatically assigns IRQs to devices in the system for legacy compatibility. No
method is provided to manually configure the IRQs for devices.
3.4.1.10
Option ROM Support
The BIOS dispatches the option ROMs to available memory space in the address range
0c0000h-0e7fffh. Given the limited space for option ROMs, the BIOS allows for disabling of
legacy ROM posting via the BIOS Setup. Onboard and per-slot option ROM disable options are
also available in BIOS Setup. The option to disable the onboard video option ROM is not
available.
The option ROM space is also used by the console redirection binary (if enabled) and the user
binary (if present and configured for runtime usage).
The SE7520JR2 BIOS integrates option ROMs for the Intel® 82546GB, the ATI* Rage XL, and
the LSI* 53C1030 SCSI controller.
3.4.1.11
PCI APIs
The system BIOS supports the INT 1Ah, AH = B1h functions as defined in the PCI BIOS
Specification. The system BIOS supports the real mode interfaces and does not support the
protected mode interfaces.
3.4.2
Split Option ROM
The BIOS supports the split option ROM algorithm per the PCI 3.0 specification.
3.4.3
Interrupt Routing
The Server Board SE7520JR2 interrupt architecture accommodates both PC-compatible PIC
mode and APIC mode interrupts through use of the integrated I/O APICs in the ICH5-R.
3.4.3.1
Legacy Interrupt Routing
For PC-compatible mode, the ICH5-R provides two 82C59-compatible interrupt controllers. The
two controllers are cascaded with interrupt levels 8-15 entering on level 2 of the primary
interrupt controller (standard PC configuration). A single interrupt signal is presented to the
processors, to which only one processor will respond for servicing. The ICH5-R contains
configuration registers that define which interrupt source logically maps to I/O APIC INTx pins.
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Both PCI and IRQ types of interrupts are handled by the ICH5-R. The ICH5-R translates these
to the APIC bus. The numbers in the table below indicate the ICH5-R PCI interrupt input pin to
which the associated device interrupt (INTA, INTB, INTC, INTD) is connected. The ICH5-R I/O
APIC exists on the I/O APIC bus with the processors.
Table 9: PCI Interrupt Routing/Sharing
Interrupt
INT A
INT B
INT C
INT D
Video
ICH5R_PIRQB
IDE RAID
ICH5R_PIRQC
ICH5R_PIRQD
NIC 10/100 (Not used on
SE7520JR2)
SIO
ICH5R_SERIRQ
ICH5R_PIRQ14
ICH5R_PIRQ15
P64A_IRQ6
Legacy IDE
Legacy IDE
82546GB #1
82546GB #2
SCSI Controller #1
SCSI Controller #2
FL Riser TCK & TCO
P64-A Slot 1
P64-A Slot 2
P64-A Slot 3
LP Riser
P64A_IRQ7
P64B_IRQ2
P64B_IRQ1
P64A_IRQ0
P64A_IRQ0
P64A_IRQ3
P64A_IRQ5
P64B_IRQ4
P64B_IRQ4
P64B_IRQ3
P64B_IRQ2
P64A_IRQ3
P64A_IRQ3
P64A_IRQ5
P64A_IRQ4
P64B_IRQ3
P64B_IRQ3
P64B_IRQ2
P64B_IRQ1
P64A_IRQ5
P64A_IRQ5
P64A_IRQ4
P64A_IRQ2
P64B_IRQ2
P64B_IRQ2
P64B_IRQ1
P64B_IRQ4
P64A_IRQ4
P64A_IRQ4
P64A_IRQ0
P64A_IRQ1
P64B_IRQ1
P64B_IRQ1
P64B_IRQ4
P64B_IRQ3
P64-B Slot 1
P64-B Slot 2
P64-B Slot 3
3.4.3.2
APIC Interrupt Routing
For APIC mode, the Server Board SE7520JR2 interrupt architecture incorporates three Intel I/O
APIC devices to manage and broadcast interrupts to local APICs in each processor. The Intel
I/O APICs monitor each interrupt on each PCI device including PCI slots in addition to the ISA
compatibility interrupts IRQ(0-15). When an interrupt occurs, a message corresponding to the
interrupt is sent across a three-wire serial interface to the local APICs. The APIC bus minimizes
interrupt latency time for compatibility interrupt sources. The I/O APICs can also supply greater
than 16 interrupt levels to the processor(s). This APIC bus consists of an APIC clock and two
bidirectional data lines.
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3.4.3.3
Legacy Interrupt Sources
The table below recommends the logical interrupt mapping of interrupt sources on the Server
Board SE7520JR2. The actual interrupt map is defined using configuration registers in the
ICH5-R.
Table 10: Interrupt Definitions
ISA
Description
Interrupt
IRQ0
Timer/counter, HPET #0 in legacy replacement Mode. In APIC mode, cascade from 8259 controller #1
IRQ1
Keyboard
IRQ2
Slave controller INTR output. In APIC mode timer/counter, HPET#0
Serial port A
IRQ3
IRQ4
Serial port B
IRQ5
Parallel Port (Not implemented)
Floppy
IRQ6
IRQ7
Parallel port, generic (Not implemented)
RTC/HPET#1 in legacy replacement mode
Generic, Option for SCI
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
PIRQA
PIRQB
PIRQC
PIRQD
PIRQE
PIRQF
PIRQG
PIRQH
Ser IRQ
Generic, Option for SCI
HPET#2, option for SCSI, TCO*
PS2 Mouse
FERR
Primary ATA, legacy mode
Secondary ATA, legacy mode
USB 2.0 Controller #1 and #4
Video
USB 2.0 Controller #3, Native IDE, S-ATA
USB 2.0 Controller #2
Option for SCI, TCO, HPET#0,1,2
Option for SCI, TCO, HPET#0,1,2
Option for SCI, TCO, HPET#0,1,2
USB 2.0 EHCI controller #1, option for SCI, TCO, HPET#0,1,2
SIO3
3.4.3.4
Serialized IRQ Support
The Server Board SE7520JR2 supports a serialized interrupt delivery mechanism. Serialized
Interrupt Requests (SERIRQ) consists of a start frame, a minimum of 17 IRQ / data channels,
and a stop frame. Any slave device in quiet mode may initiate the start frame. While in
continuous mode, the start frame is initiated by the host controller.
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3.4.3.5
IRQ Scan for PCIIRQ
The IRQ / data frame structure includes the ability to handle up to 32 sampling channels with
the standard implementation using the minimum 17 sampling channels. The Server Board
SE7520JR2 has an external PCI interrupt serializer for PCIIRQ scan mechanism of ICH5-R to
support 16 PCIIRQs.
HI1.5
INTERFACE
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
ICH5-R
ICH5-R
8259PIC
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
IRQ16
IRQ0
IRQ1
IRQ2
PCI-E INTERFACE
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
PXH
IOAPIC 1
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
IRQ16
IRQ17
INTR
INTR
CPU1
CPU2
MCH
HI 1.5
IRQ0
IRQ1
IRQ2
IRQ3
PCI-E INTERFACE
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
PXH
IOAPIC 2
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
IRQ16
IRQ17
Figure 8. Interrupt Routing Diagram (ICH5-R Internal)
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Super I/O
Timer
Keyboard
Cascade
Serial
Serial
ISA
SERIR
SERIRQ
Floppy/IS
ISA
RTC
SCI/ISA
ISA
ISA
Mouse/IS
Coprocessor
P_IDE/IS
Not Used
PIRQA
PIRQB
PIRQ
USB 1.1 Controller #1 and #4
Video
USB 1.1 Controller #3, Native IDE
and SATA
USB 1.1 Controller #2
PIRQ
PIRQE
PIRQF
PIRQ
Option for SCI, TCO, HPET#0,1,2
Option for SCI, TCO, HPET#0,1,2
Option for SCI, TCO, HPET#0,1,2
PIRQ
USB 2.0 EHCI Controller #1,
Option for SCI, TCO, HPET#0,1,2
Figure 9. Interrupt Routing Diagram
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Figure 10. PCI Interrupt Mapping Diagram
Figure 11. PCI Interrupt Mapping Diagram for 2U Active Riser Card
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3.4.4
SCSI Support
The SCSI sub-system consists of the LSI 53C1030 Dual Channel Ultra320 SCSI controller, one
internal 80-pin connector (SCSI Channel A), one external high 80-pin density SCSI connector
(SCSI channel B), and on-board termination for both SCSI channels.
3.4.4.1
LSI* 53C1030 Dual Channel Ultra320 SCSI Controller
The LSI53C1030 is a PCI-X to Dual Channel Ultra320 SCSI Multifunction Controller that
supports the PCI Local Bus Specification, Revision 2.2, and the PCI-X Addendum to the PCI
Local Bus Specification, Revision 1.0a.
The LSI53C1030 supports up to a 64-bit, 133 MHz PCI-X bus. DT clocking enables the
LSI53C1030 to achieve data transfer rates of up to 320 megabytes per second (MB/s) on each
SCSI channel, for a total bandwidth of 640 MB/s on both SCSI channels.
SureLINK* Domain Validation detects the SCSI bus configuration and adjusts the SCSI transfer
rate to optimize bus interoperability and SCSI data transfer rates. SureLINK Domain Validation
provides three levels of domain validation, assuring robust system operation.
The LSI53C1030 integrates two high-performance SCSI Ultra320 cores and a 64-bit, 133 MHz
PCI-X bus master DMA core. The LSI53C1030 employs three ARM* ARM966E-S processors to
meet the data transfer flexibility requirements of the Ultra320 SCSI, PCI, and PCI-X
specifications. Separate ARM processors support each SCSI channel and the PCI/PCI-X
interface.
These processors implement the LSI* Logic Fusion-MPT* architecture, a multithreaded I/O
algorithm that supports data transfers between the host system and SCSI devices with minimal
host processor intervention. Fusion-MPT technology provides an efficient architecture that
solves the protocol overhead problems of previous intelligent and non-intelligent adapter
designs. LVDlink* technology is the LSI Logic implementation of Low Voltage Differential (LVD)
SCSI. LVDlink transceivers allow the LSI53C1030 to perform either Single-Ended (SE) or LVD
transfers.
The LSI* 53C1030 SCSI controller implements a regular SCSI solution or a RAID On
MotherBoard (ROMB) solution. This RAID functionality is included in the LSI option rom and
allows the user to select either Integrated Mirroring (IME) or Integrated Striping (IS) RAID mode.
The system BIOS provides a setup option to allow the user to select one of these two modes
The LSI Logic BIOS Configuration Utility or the IM DOS Configuration Utility is used to configure
the IME and IS firmware attributes. Using the LSI Logic BIOS and drivers adds support of
physical device recognition for the purpose of Domain Validation and Ultra320 SCSI expander
configuration. Host-based status software monitors the state of the mirrored drives and reports
error conditions as they arise.
3.4.4.1.1
53C1030 Summary of Features
The Ultra320 SCSI features for the LSI53C1030 include:
•
•
•
Double transition (DT) clocking
Packetized protocol
Paced transfers
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•
•
•
•
•
Quick arbitrate and select (QAS)
Skew compensation
Inter-symbol interference (ISI) compensation
Cyclic redundancy check (CRC)
Domain validation technology
The LSI53C1030 contains the following SCSI performance features:
•
•
•
•
•
•
•
•
•
•
•
•
•
Supports Ultra320 SCSI
Paced transfers using a free running clock
320 MB/s data transfer rate on each SCSI channel
Mandatory packetized protocol
Quick arbitrate and select (QAS)
Skew compensation with bus training
Transmitter precompensation to overcome ISI effects for SCSI data signals
Retained training information (RTI)
Offers a performance optimized architecture
Three ARM966E-S processors provide high performance with low latency
Two independent Ultra320 SCSI channels
Designed for optimal packetized performance
Uses proven integrated LVDlink transceivers for direct attach to either LVD or SE SCSI
buses with precision-controlled slew rates
•
Supports expander communication protocol (ECP)
•
Uses the Fusion-MPT (Message Passing Technology) drivers to provide support for
Windows*, Linux, and NetWare* operating systems
The LSI53C1039 has a 133 MHz, 64-bit PCI/PCI-X interface that supports the following PCI
features:
•
•
•
•
•
•
•
•
•
•
•
•
•
Operates at 33 MHz or 66 MHz PCI
Operates at up to 133 MHz PCI-X
Supports 32-bit or 64-bit data
Supports 32-bit or 64-bit addressing through Dual Address Cycles (DAC)
Provides a theoretical 1066 Mbytes/s zero wait state transfer rate
Complies with the PCI Local Bus Specification, Revision 2.2
Complies with the PCI-X Addendum to the PCI Local Bus Specification, Revision 1.0a
Complies with the PCI Power Management Interface Specification, Revision 1.1
Complies with the PC2001 System Design Guide
Offers unmatched performance through the Fusion-MPT architecture
Provides high throughput and low CPU utilization to off load the host processor
Presents a single electrical load to the PCI Bus (True PCI Multifunction Device)
Uses SCSI Interrupt Steering Logic (SISL) to provide alternate interrupt routing for RAID
applications
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Intel® Server Board SE7520JR2
•
•
•
•
Reduces Interrupt Service Routine (ISR) overhead with interrupt coalescing
Supports 32-bit or 64-bit data bursts with variable burst lengths
Supports the PCI Cache Line Size register
Supports the PCI Memory Write and Invalidate, Memory Read Line, and Memory Read
Multiple commands
•
Supports the PCI-X Memory Read Dword, Split Completion, Memory Read Block, and
Memory Write Block commands
•
Supports up to 8 PCI-X outstanding split transactions
•
Supports Message Signaled Interrupts (MSI)
3.4.4.2 Zero Channel RAID
The Server Board SE7520JR2 has support for Zero Channel RAID (ZCR) which follows the
RUBI2 standard. It will not have support for zero channel RAID cards that follow the RADIOS
standard. See the SE7520JR2 Tested Hardware and OS list for a list of supported ZCR cards.
Zero channel RAID (ZCR) capabilities enable the LSI 53C1030 to respond to accesses from a
PCI RAID controller card or chip that is able to generate ZCR cycles. The LSI53C1030’s ZCR
functionality is controlled through the ZCR_EN/ and the IOPD_GNT/ signals. Both of these
signals have internal pull-ups and are active LOW. The ZCR_EN/ signal enables ZCR support
on the LSI53C1030. Pulling ZCR_EN/ LOW enables ZCR operation. When ZCR is enabled, the
LSI53C1030 responds to PCI configuration cycles when the IOPD_GNT/ and IDSEL signal are
asserted. Pulling ZCR_EN/ HIGH disables ZCR support on the LSI53C1030 and causes the
LSI53C1030 to behave as a normal PCI-X to Ultra320 SCSI controller. When ZCR is disabled,
the IOPD_GNT/ signal has no effect on the LSI53C1030 operation. The IOPD_GNT/ pin on the
LSI53C1030 should be connected to the PCI GNT/ signal of the external I/O processor. This
allows the I/O processor to perform PCI configuration cycles to the LSI53C1030 when the I/O
processor is granted the PCI bus. This configuration also prevents the system processor from
accessing the LSI53C1030 PCI configuration registers.
On the Server Board SE7520JR2, a ZCR card is only supported on the full-height riser slot.
When installing the card, it MUST be populated in the PCI-X add-in slot furthest from the
baseboard. No other add-in card slot has support for a ZCR card.
3.4.5
IDE Support
Integrated IDE controllers of the ICH5-R provide two independent IDE channels. Each is
capable of supporting up to two devices. A standard 40-pin IDE connector on the baseboard
interfaces with one channel. The signals of the second IDE channel are routed to the high-
density 100-pin backplane connector for use in either the Intel® Server Chassis SR1400 (1U
chassis) or the Intel Server Chassis SR2400 (2U chassis). Both IDE channels can be
configured and enabled or disabled by accessing the BIOS Setup Utility during POST.
The BIOS supports the ATA/ATAPI Specification, version 6. It initializes the embedded IDE
controller in the chipset south-bridge and the IDE devices that are connected to these devices.
The BIOS scans the IDE devices and programs the controller and the devices with their
optimum timings. The IDE disk read/write services that are provided by the BIOS use PIO
mode, but the BIOS will program the necessary Ultra DMA registers in the IDE controller so that
the operating system can use the Ultra DMA Modes.
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The BIOS initializes and supports ATAPI devices such as LS-120/240, CDROM, CD-RW and
DVD.
The BIOS initializes and supports S-ATA devices just like P-ATA devices. It initializes the
embedded the IDE controllers in the chipset and any S-ATA devices that are connected to these
controllers. From a software standpoint, S-ATA controllers present the same register interface
as the P-ATA controllers. Hot plugging of S-ATA drives during the boot process is not supported
by the BIOS and may result in undefined behavior.
3.4.5.1
Ultra ATA/100
The IDE interfaces of the ICH5R DMA protocol redefines signals on the IDE cable to allow both
host and target throttling of data and transfer rates of up to 100MB/s.
3.4.5.2
IDE Initialization
The BIOS supports the ATA/ATAPI Specification, version 6 or later. The BIOS initializes the
embedded IDE controller in the chipset (ICH5-R) and the IDE devices that are connected to
these devices. The BIOS scans the IDE devices and programs the controller and the devices
with their optimum timings. The IDE disk read/write services that are provided by the BIOS use
PIO mode, but the BIOS programs the necessary Ultra DMA registers in the IDE controller so
that the operating system can use the Ultra DMA Modes.
3.4.6
SATA Support
The integrated Serial ATA (SATA) controller of the ICH5-R provides two SATA ports on the
baseboard. The SATA ports can be enabled/disabled and/or configured by accessing the BIOS
Setup Utility during POST.
The SATA function in the ICH5-R has dual modes of operation to support different operating
system conditions. In the case of native IDE-enabled operating systems, the ICH5-R has
separate PCI functions for serial and parallel ATA. To support legacy operating systems, there
is only one PCI function for both the serial and parallel ATA ports. The MAP register provides
the ability to share PCI functions. When sharing is enabled, all decode of I/O is done through
the SATA registers. A software write to the Function Disable Register (D31, F0, offset F2h, bit 1)
causes Device 31, Function 1 (IDE controller) to hidden, and its configuration registers are not
used. The SATA Capability Pointer Register (offset 34h) will change to indicate that MSI is not
supported in combined mode.
The ICH5-R SATA controller features two sets of interface signals that can be independently
enabled or disabled. Each interface is supported by an independent DMA controller. The ICH5-
R SATA controller interacts with an attached mass storage device through a register interface
that is equivalent to that presented by a traditional IDE host adapter. The host software follows
existing standards and conventions when accessing the register interface and follows standard
command protocol conventions.
SATA interface transfer rates are independent of UDMA mode settings. SATA interface transfer
rates will operate at the bus’s maximum speed, regardless of the UDMA mode reported by the
SATA device or the system BIOS.
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3.4.6.1
SATA RAID
The Intel® RAID Technology solution, available with the 82801ER ICH5 R (ICH5R), offers data
striping for higher performance (RAID Level 0), alleviating disk bottlenecks by taking advantage
of the dual independent SATA controllers integrated in the ICH5R. There is no loss of PCI
resources (request/grant pair) or add-in card slot.
Intel RAID Technology functionality requires the following items:
•
•
•
ICH5-R
Intel RAID Technology Option ROM must be on the platform
Intel® Application Accelerator RAID Edition drivers, most recent revision
•
Two SATA hard disk drives
Intel RAID Technology is not available in the following configurations:
•
The SATA controller in compatible mode
•
Intel RAID Technology has been disabled
3.4.6.2 Intel® RAID Technology Option ROM
The Intel RAID Technology for SATA Option ROM provides a pre-OS user interface for the Intel
RAID Technology implementation and provides the ability for an Intel RAID Technology volume
to be used as a boot disk as well as to detect any faults in the Intel RAID Technology volume(s)
attached to the Intel RAID controller.
3.4.7
Video Support
The Server Board SE7520JR2 provides an ATI* Rage XL PCI graphics accelerator, along with 8
MB of video SDRAM and support circuitry for an embedded SVGA video subsystem. The ATI
Rage XL chip contains a SVGA video controller, clock generator, 2D and 3D engine, and
RAMDAC in a 272-pin PBGA. One 2Mx32 SDRAM chip provides 8 MB of video memory.
The SVGA subsystem supports a variety of modes, up to 1600 x 1200 resolution in 8/16/24/32
bpp modes under 2D, and up to 1024 x 768 resolution in 8/16/24/32 bpp modes under 3D. It
also supports both CRT and LCD monitors up to 100 Hz vertical refresh rate.
Video is accessed using a standard 15-pin VGA connector found on the back edge of the server
board. Video signals are also made available through either of two control panel connectors
allowing for an optional video connector to be present on the platform’s control panel. Video is
routed to the rear video connector by default. Circuitry on the baseboard disables the rear video
connector when a monitor is plugged in to the control panel video connector. “Hot plugging” the
video while the system is still running, is supported.
On-board video can be disabled using the BIOS Setup Utility or when an add-in video card is
installed. System BIOS also provides the option for dual video operation when an add-in video
card is configured in the system.
3.4.7.1
Video Modes
The Rage XL chip supports all standard IBM VGA modes. The following table shows the 2D/3D
modes supported for both CRT and LCD.
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Table 11: Video Modes
2D Mode
640x480
Refresh Rate (Hz)
2D Video Mode Support
8 bpp
Supported
16 bpp
24 bpp
32 bpp
Supported
60, 72, 75, 90, 100
60, 70, 75, 90, 100
60, 72, 75, 90, 100
43, 60
Supported
Supported
800x600
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
–
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
–
1024x768
1280x1024
1280x1024
1600x1200
1600x1200
70, 72
60, 66
Supported
Supported
76, 85
3D Mode
Refresh Rate (Hz)
3D Video Mode Support with Z Buffer Enabled
8 bpp
16 bpp
24 bpp
32 bpp
640x480
60,72,75,90,100
60,70,75,90,100
60,72,75,90,100
43,60,70,72
Supported
Supported
Supported
Supported
800x600
Supported
Supported
Supported
Supported
Supported
Supported
Supported
–
Supported
Supported
1024x768
1280x1024
1600x1200
Supported
Supported
–
–
–
–
60,66,76,85
3D Mode
Refresh Rate (Hz)
3D Video Mode Support with Z Buffer Disabled
8 bpp
16 bpp
24 bpp
32 bpp
640x480
60,72,75,90,100
60,70,75,90,100
60,72,75,90,100
43,60,70,72
Supported
Supported
Supported
Supported
800x600
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
–
Supported
1024x768
1280x1024
1600x1200
Supported
–
–
60,66,76,85
3.4.7.2
Video Memory Interface
The memory controller subsystem of the Rage XL arbitrates requests from direct memory
interface, the VGA graphics controller, the drawing coprocessor, the display controller, the video
scalar, and hardware cursor. Requests are serviced in a manner that ensures display integrity
and maximum CPU/coprocessor drawing performance.
The Server Board SE7520JR2 supports an 8MB (512Kx32bitx4 Banks) SDRAM device for
video memory. The following table shows the video memory interface signals:
Table 12: Video Memory Interface
Signal Name I/O Type
CAS#
Description
Column Address Select
O
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CKE
O
O
O
O
O
O
I/O
O
O
Clock Enable for Memory
CS#[1..0]
DQM[7..0]
DSF
Chip Select for Memory
Memory Data Byte Mask
Memory Special Function Enable
Memory Clock
HCLK
[11..0]
Memory Address Bus
Memory Data Bus
MD[31..0]
RAS#
Row Address Select
Write Enable
WE#
3.4.7.3
Dual video
The BIOS supports single and dual video modes. The dual video mode is enabled by default.
•
•
In single mode (Dual Monitor Video=Disabled), the onboard video controller is disabled
when an add-in video card is detected.
In dual mode (Onboard Video=Enabled, Dual Monitor Video=Enabled), the onboard
video controller is enabled and will be the primary video device. The external video card
will be allocated resources and is considered the secondary video device. BIOS Setup
provides user options to configure the feature as follows:
•
Onboard Video
Enabled
Disabled
Enabled
Disabled
Dual Monitor Video
Shaded if onboard video is set
to "Disabled"
3.4.8
Network Interface Controller (NIC)
The Intel 82546GB dual-channel gigabit network interface controller supplies the baseboard
with two network interfaces. The 82546GB is a highly integrated PCI LAN controller in a 21 mm2
PBGA package. Each channel is capable of supporting 10/100/1000 operation and alert-on-LAN
functionality. Both channels can be disabled by using the BIOS Setup utility, which is accessed
during POST. The 82546GB supports the following features:
•
•
•
•
•
•
64-bit PCI-X Rev. 1.0 master interface
Integrated IEEE 802.3 10Base-T, 100Base-TX and 1000Base-TX compatible PHY
IEEE 820.3ab auto-negotiation support
Full duplex support at 10 Mbps, 100Mbps and 1000 Mbps operation
Integrated UNDI ROM support
MDI/MDI-X and HWI support
•
Low power +3.3 V device
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3.4.8.1
NIC Connector and Status LEDs
The 82546GB drives the two LEDs that are located on each network interface connector. The
link/activity LED to the left of the connector indicates network connection when on, and
transmit/receive activity when blinking. The speed LED to the right of the connector indicates
1000Mbps operations when amber, 100Mbps operations when green, and 10-Mbps when off.
3.4.9
USB 2.0 Support
The USB controller functionality integrated into ICH5-R provides the baseboard with the
interface for up to six USB 2.0 ports. Two external connectors are located on the back edge of
the baseboard. Two 10 pin internal on-board headers are provided which are each capable of
supporting an additional two optional connectors.
Legacy USB
The BIOS supports PS/2 emulation of USB 1.1 keyboards and mice. During POST, the BIOS
initializes and configures the root hub ports and then searches for a keyboard and mouse. If
detected, the USB hub enables them.
3.4.10
Super I/O Chip
Legacy I/O support is provided by using a National Semiconductor* PC87427 Super I/O device.
This chip contains all of the necessary circuitry to control two serial ports, one parallel port,
floppy disk, and PS/2-compatible keyboard and mouse. Of these, the Server Board SE7520JR2
supports the following:
•
•
•
•
GPIOs
Two serial ports
Floppy Controller
Keyboard and mouse controller
•
Wake up control
3.4.10.1 GPIOs
The National Semiconductor* PC87427 Super I/O provides nine general-purpose input/output
pins that the Server Board SE7520JR2 utilizes. The following table identifies the pin and the
signal name used in the schematic:
Table 13: Super I/O GPIO Usage Table
Pin
Name
IO/GPIO
SE7520JR2 Use
124
GPIO00/CLKRUN_L
I/O
TP
125
126
127
128
9
GPIO01/KBCLK
GPIO02/KBDAT
GPIO03/MCLK
GPIO04/MDAT
GPIO05/XRDY
GPIO06/XIRQ
I/O
KB_CLK
I/O
KB_DAT
I/O
MS_CLK
I/O
MS_DAT
I/O
TP
10
I/O
BMC_SYSIRQ
SIO_CLK_40M_BMC
XBUS_A<11>
13
GPIO07/HFCKOUT
GPIOE10/XA11
I/O
1
I/O,I(E)1
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Pin
Intel® Server Board SE7520JR2
SE7520JR2 Use
Name
GPIOE11/XA10
GPIOE12/XA9
IO/GPIO
I/O,I(E)1
2
XBUS_A<10>
3
I/O,I(E)1
I/O,I(E)1
I/O,I(E)1
I/O,I(E)1
I/O,I(E)1
I/O,I(E)1
I/O
XBUS_A<9>
XBUS_A<8>
XBUS_A<7>
XBUS_A<6>
XBUS_A<5>
XBUS_A<4>
XBUS_XRD_L
XBUS_XWR_L
XBUS_A<3>
XBUS_A<2>
XBUS_A<1>
XBUS_A<0>
TP
4
GPIOE13/XA8
5
GPIOE14/XA7
6
GPIOE15/XA6
7
GPIOE16/XA5
8
GPIOE17/XA4
14
15
16
17
18
19
22
23
24
25
26
27
28
29
30
31
20
21
35
49
50
51
52
53
36
37
38
45
54
56
32
33
34
48
55
GPIO20/XRD_XEN_L
GPIO21/XWR_XRW_L
GPIO22/XA3
I/O
I/O
GPIO23/XA2
I/O
GPIO24/XA1
I/O
GPIO25/XA0
I/O
GPIO26/XCS1_L
GPIO27/XCS0_L
GPIO30/XD7
I/O
I/O
XBUS_XCS0_L
XBUS_D<7>
XBUS_D<6>
XBUS_D<5>
XBUS_D<4>
XBUS_D<3>
XBUS_D<2>
XBUS_D<1>
XBUS_D<0>
TP
I/O
GPIO31/XD6
I/O
GPIO32/XD5
I/O
GPIO33/XD4
I/O
GPIO34/XD3
I/O
GPIO35/XD2
I/O
GPIO36/XD1
I/O
GPIO37/XD0
I/O
GPIOE40/XCS3_L
GPIOE41/XCS2_L
GPIOE42/SLBTIN_L
GPIOE43/PWBTOUT_L
GPIOE44/LED1
GPIOE45/LED2
GPIOE46/SLPS3_L
GPIOE47/SLPS5_L
GPIO50/PWBTN_L
GPIO51/SIOSMI_L
GPIO52/SIOSCI_L
I/O,I(E)1
I/O,I(E)1
I/O,I(E)1
I/O,I(E)1
I/O,I(E)1
I/O,I(E)1
I/O,I(E)1
I/O,I(E)1
I/O
TP
TP
ZZ_POST_CLK_LED_L
ZZ_BIOS_ROLLING
FP_PWR_LED_L
TP
TP
TP
I/O
TP
I/O
SIO_PME_L
TP
GPIO53/LFCKOUT/MSEN0 I/O
GPIO54/VDDFELL
I/O
I/O
O
ZZ_POST_DATA_LED_L
CLK_48M_SIO
PU_XBUS_XCNF2
XBUS_XSTB1_L
PU_XBUS_XCNF0
PU_SIO_ACBSA
PU_SIO_CKIN48
GPIO55/CLKIN
GPO60/XSTB2/XCNF2_L
GPO61/XSTB1/XCNF1_L
GPO62/XSTB0/XCNF0_L
GPO63/ACBSA
O
O
O
GPO64/WDO_L/CKIN48
O
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Intel® Server Board SE7520JR2
Functional Architecture
3.4.10.2
Serial Ports
The baseboard provides two serial ports: an external RJ45 Serial B port, and an internal DH10
Serial A header. The following sub-sections provide details on the use of the serial ports.
3.4.10.2.1
Serial Port A
Serial A is an optional port, accessed through a 9-pin internal DH-10 header. A standard DH10
to DB9 cable is used to direct Serial A out the back of a given chassis. The Serial A interface
follows the standard RS232 pin-out as defined in the following table.
Table 14: Serial A Header Pin-out
Pin
Signal Name
Serial Port A Header Pin-out
1
2
3
4
5
6
7
8
9
DCD
DSR
RX
RTS
TX
CTS
DTR
RI
GND
3.4.10.2.2
Serial Port B
Serial B is an external 8-pin RJ45 connector that is located on the back edge of the baseboard.
For serial devices that require a DB-9 connector, an appropriate RJ45-to-DB9 adapter is
necessary.
3.4.10.2.3
Serial Port Multiplexer Logic
The Server Board SE7520JR2 has a multiplexer to connect the rear RJ45 connector to either
Serial Port A or Serial Port B. This facilitates the routing of Serial Port A to the rear RJ45
connector if Serial Port B is used for Serial Over LAN (SOL). This serial port selection can be
done through the BIOS setup option.
The figure below shows the serial port mux functionality.
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Functional Architecture
Intel® Server Board SE7520JR2
Serial B
Serial A
Bus
Exchange
SIO
BMC
2 to 1
Mux
Level
Level
Shifter
shifter
Rear
RJ45
Header
Figure 12. Serial Port Mux Logic
Rear RJ45 Serial B Port Configuration
3.4.10.2.4
The rear RJ45 Serial B port is a fully functional serial port that can support any standard serial
device. Using an RJ45 connector for a serial port gives direct support for serial port
concentrators, which are widely used in the high-density server market. For server applications
that use a serial concentrator to access the server management features of the baseboard, a
standard 8-pin CAT-5 cable from the serial concentrator is plugged directly into the rear RJ45
serial port.
To support either of two serial port configuration standards which require either a DCD or DSR
signal, a jumper block (J7A1), located near the back IO ports, is used to configure the RJ45
serial port to the desired standard. The following diagram shows the jumper block location and
its jumper settings.
3
1
4
2
Pins 1&3 – DCD to DTR
*Pins 2&4 – DSR to DTR
* = Factory Default
Figure 13. RJ45 Serial B Port Jumper Block Location and Setting
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Functional Architecture
Note: The appropriate RJ45-to-DB9 adapter should match the configuration of the serial device
used. One of two pin-out configurations is used, depending on whether the serial device requires
a DSR or DCD signal. The final adapter configuration should also match the desired pin-out of
the RJ45 connector, as it can also be configured to support either DSR or DCD.
3.4.10.3
Removable Media Drives
The BIOS supports removable media devices, including 1.44MB floppy removable media
devices and optical devices such as a CD-ROM drive or DVD drive (read only). The BIOS
supports booting from USB mass storage devices connected to the chassis USB port, such as a
USB key device.
The BIOS supports USB 2.0 media storage devices that are backward compatible to the USB
1.1 specification.
3.4.10.4
Floppy Disk Support
The floppy disk controller (FDC) in the SIO is functionally compatible with floppy disk controllers
in the DP8473 and N844077. All FDC functions are integrated into the SIO including analog
data separator and 16-byte FIFO. On the Server Board SE7520JR2, floppy controller signals
are directed to two separate connectors. When the baseboard is used with any of the
backplanes designed for either the Server Chassis SR1400 or SR2400, the floppy signals are
directed through the 100-pin backplane connector (J2J1). If no backplane is present, a floppy
drive can be attached to the on-board legacy 36-pin connector (J3K2).
Note: Using both interfaces in a common configuration is not supported.
3.4.10.5
Keyboard and Mouse Support
Dual stacked PS/2 ports, located on the back edge of the baseboard, are provided for keyboard
and mouse support. Either port can support a mouse or keyboard. Neither port will support “Hot
Plugging” or connector insertion while the system is turned on.
The system can boot without a keyboard. If present, the BIOS detects the keyboard during
POST and displays the message “Keyboard Detected” on the POST Screen
3.4.10.6
Wake-up Control
The Super I/O contains functionality that allows various events to control the power-on and
power-off the system.
3.4.11
BIOS Flash
The BIOS supports the Intel® 28F320C3B flash part. The flash part is a 4-MB flash ROM with
2MB programmable. The flash ROM contains system initialization routines, setup utility, and
runtime support routines. The exact layout is subject to change, as determined by Intel. A 128-
KB block is available for storing OEM code (user binary) and custom logos.
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Functional Architecture
Intel® Server Board SE7520JR2
3.5 Configuration and Initialization
This section describes the initial programming environment including address maps for memory
and I/O, techniques and considerations for programming ASIC registers, and hardware options
configuration.
3.5.1
Memory Space
At the highest level, the Intel Xeon processor address space is divided into four regions, as
shown in the following figure. Each region contains the sub-regions that are described in
following sections. Attributes can be independently assigned to regions and sub-regions using
registers. The Intel E7520 chipset supports 64GB of host-addressable memory space and
64KB+3 of host-addressable I/O space. The Server Board SE7520JR2 supports only the main
memory up to 24GB for DDR-266 or up to 16GB for DDR333/DDR2-400.
64GB
Hi PCI Memory
Address Range
Upper Memory
Ranges
Additional Main
Memory Address
Range
4GB
Lo PCI Memory
Space Range
Top of Low Memory (TOLM)
TSEG SMRAM Space
Main Memory
Address Range
16MB
15MB
Optional ISA Hole
1MB
640KB
512KB
DOS Legacy
Address Range
0
Figure 14. Intel® Xeon™ Processor Memory Address Space
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Functional Architecture
3.5.1.1
DOS Compatibility Region
The first region of memory below 1 MB was defined for early PCs, and must be maintained for
compatibility reasons. The region is divided into sub-regions as shown in the following figure.
0FFFFFh
1MB
System BIOS
0F0000h
0EFFFFh
960KB
896KB
768KB
Extended
System BIOS
0E0000h
0DFFFFh
Add-in Card BIOS and
Buffer Area
0C0000h
0BFFFFh
PCI/ISA Video or SMM
Area
0A0000h
09FFFFh
640KB
512KB
ISA Window Area
DOS Area
080000h
07FFFFh
= Shadowed in main memory
= Mappable to PCI or ISA memory
= Main memory only
0
000000h
= PCI only
Figure 15. DOS Compatibility Region
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Intel® Server Board SE7520JR2
3.5.1.1.1
DOS Area
The DOS region is 512 KB in the address range 0 to 07FFFFh. This region is fixed and all
accesses go to main memory.
3.5.1.1.2
ISA Window Memory
The ISA Window Memory is 128 KB between the address of 080000h to 09FFFFh. This area
can be mapped to the PCI bus or main memory.
3.5.1.1.3
Video or SMM Memory
The 128 KB Graphics Adapter Memory region at 0A0000h to 0BFFFFh is normally mapped to
the VGA controller on the PCI bus. This region is also the default region for SMM space.
3.5.1.1.4
Add-in Card BIOS and Buffer Area
The 128 KB region between addresses 0C0000h to 0DFFFFh is divided into eight segments of
16 KB segments mapped to ISA memory space, each with programmable attributes, for
expansion cards buffers. Historically, the 32 KB region from 0C0000h to 0C7FFFh has
contained the video BIOS location on the video card
3.5.1.1.5
Extended System BIOS
This 64 KB region from 0E0000h to 0EFFFFh is divided into four blocks of 16 KB each, and may
be mapped with programmable attributes to map to either main memory or to the PCI bus.
Typically this area is used for RAM or ROM. This region can also be used extended SMM
space.
3.5.1.1.6
System BIOS
The 64 KB region from 0F0000h to 0FFFFFh is treated as a single block. By default, this area is
normally read/write disabled with accesses forwarded to the PCI bus. Through manipulation of
read/write attributes, this region can be shadowed into main memory.
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Intel® Server Board SE7520JR2
Functional Architecture
3.5.1.2
Extended Memory
Extended memory is defined as all address space greater than 1MB. Extended Memory region
covers 8GB maximum of address space from addresses 0100000h to FFFFFFFh, as shown in
the following figure. PCI memory space can be remapped to top of memory (TOM).
64GB
Extended
lntel E7520 chipset
region
Top Of Memory (TOM)
FFFFFFFFh
High BIOS Area
APIC Space
FFE00000h
PCI Memory Space
FEC0FFFFh
FEC00000h
Top of Low Memory (TOLM)
Depends on installed DIMMs
512KB Extended System
Management RAM
16MB
15MB
Optional Fixed Memory
Hole
Main Memory Address
Region
100000h
Figure 16. Extended Memory Map
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Functional Architecture
Intel® Server Board SE7520JR2
3.5.1.2.1
Main Memory
All installed memory greater than 1MB is mapped to local main memory, up to 8GB of physical
memory. Memory between 1MB to 15MB is considered to be standard ISA extended memory.
1MB of memory starting at 15MB can be optionally mapped to the PCI bus memory space.
The remainder of this space, up to 8GB, is always mapped to main memory, unless TBSG SMM
is used which is just under TOLM. The range can be from 128KB till 1MB. 1MB depends on the
BIOS setting C SMRAM is used which limits the top of memory to 256MB. The BIOS occupies
512KB for the 32-bit SMI handler.
3.5.1.2.2
PCI Memory Space
Memory addresses below the 4GB range are mapped to the PCI bus. This region is divided into
three sections: High BIOS, APIC configuration space, and general-purpose PCI memory. The
General-purpose PCI memory area is typically used memory-mapped I/O to PCI devices. The
memory address space for each device is set using PCI configuration registers.
3.5.1.2.3
High BIOS
The top 1MB of extended memory under 4GB is reserved for the system BIOS, extended BIOS
for PCI devices, and A20 aliasing by the system BIOS. The lntel Xeon processor begins
executing from the high BIOS region after reset.
3.5.1.2.4
High Memory Gap Reclaiming
The BIOS creates a region immediately below 4 GB to accommodate memory-mapped I/O
regions for the system BIOS Flash, APIC memory and 32-bit PCI devices. Any system memory
in this region is remapped above 4GB.
3.5.1.2.5
I/O APIC Configuration Space
A 64KB block located 20MB below 4GB (0FEC00000 to 0FEC0FFFFh) is reserved for the I/O
APIC configuration space. The first I/O APIC is located at FEC00000h. The second I/O APIC is
located at FEC80000h. The third I/O APIC is located at FEC80100h.
3.5.1.2.6
Extended lntel® Xeon™ Processor Region (above 4GB)
An lntel Xeon processor based system can have up to 64 GB of addressable memory. With the
chipset only supporting 16GB of addressable memory, the BIOS uses an extended addressing
mechanism to use the address ranges.
3.5.1.3
Memory Shadowing
System BIOS and option ROM can be shadowed in main memory. Typically this is done to allow
ROM code to execute more rapidly out of RAM. ROM is designated read-only during the copy
process while RAM at the same address is designated write-only. After copying, the RAM is
designated read-only. After the BIOS is shadowed, the attributes for that memory area are set to
read only so that all writes are forwarded to the expansion bus.
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Functional Architecture
3.5.1.4
System Management Mode Handling
The chipset supports System Management Mode (SMM) operation in one of three modes.
System Management RAM (SMRAM) provides code and data storage space for the SMI_L
handler code, and is made visible to the processor only on entry to SMM, or other conditions
that can be configured using Intel Lindenhurst PF chipset.
The MCH supports three SMM options:
•
•
•
Compatible SMRAM (C_SMRAM)
High Segment (HSEG)
Top of Memory Segment (TSEG)
Three abbreviations are used later in the table that describes SMM Space Transaction
Handling.
SMM Space
Enabled
Transaction Address Space
(Adr)
DRAM Space (DRAM)
Compatible (C)
A0000h to BFFFFh
A0000h to BFFFFh
A0000h to BFFFFh
High (H)
0FEDA0000h TO 0FEDBFFFFh
(TOLM-TSEG_SZ) to TOLM
TSEG (T)
(TOLM-TSEG_SZ) to
TOLM
Note: High SMM is different than in previous chipsets. In previous chipsets the high segment
was the 384KB region from A_0000h to F_FFFFh. However C_0000h to F_FFFFh was not
useful so it is deleted in MCH.
Note: TSEG SMM is different than in previous chipsets. In previous chipsets, the TSEG address
space was offset by 256MB to allow for simpler decoding and the TSEG was remapped to
directly under the TOLM. In the MCH, the TSEG region is not offset by 256MB and it is not
remapped.
Table 15: SMM Space Table
Global Enable High Enable TSEG Enable Compatible High (H) TSEG (T)
G_SMRAME
H_SMRAME
TSEG_EN
(C) Range
Range
Range
0
1
1
1
1
X
X
0
1
0
1
Disable
Disable
Disable
0
0
1
1
Enable
Enable
Disable
Disable
Disable
Disable
Enable
Enable
Disable
Enable
Disable
Enable
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Functional Architecture
Intel® Server Board SE7520JR2
3.5.2
I/O Map
The baseboard I/O addresses are mapped to the processor bus or through designated bridges
in a multi-bridge system. Other PCI devices, including the ICH5-R, have built-in features that
support PC-compatible I/O devices and functions, which are mapped to specific addresses in
I/O space. On SE7520JR2, the ICH5-R provides the bridge to ISA functions.
The I/O map in the following table shows the location in I/O space of all direct I/O-accessible
registers. PCI configuration space registers for each device control mapping in I/O and memory
spaces, and other features that may affect the global I/O map.
Table 16: I/O Map
Address (es)
Resource
Notes
0000h – 000Fh
DMA Controller 1
DMA Controller 2
Interrupt Controller 1
0010h – 001Fh
0020h – 0021h
0022h – 0023h
0024h – 0025h
0026h – 0027h
0028h – 0029h
002Ah – 002Bh
002Ch – 002Dh
002Eh – 002Fh
0030h – 0031h
0032h – 0033h
0034h – 0035h
0036h – 0037h
0038h – 0039h
003Ah – 003Bh
003Ch – 003Dh
003Eh – 003Fh
0040h – 0043h
0044h – 004Fh
0050h – 0053F
0054h – 005Fh
0060h, 0064h
0061h
Aliased from 0000h – 000Fh
Interrupt Controller 1
Interrupt Controller 1
Interrupt Controller 1
Aliased from 0020 – 0021h
Aliased from 0020h – 0021h
Aliased from 0020h – 0021h
Aliased from 0020h – 0021h
Aliased from 0020h – 0021h
Aliased from 0020h – 0021h
Aliased from 0020h – 0021h
Super I/O (SIO) index and Data ports
Interrupt Controller 1
Interrupt Controller 1
Interrupt Controller 1
Interrupt Controller 1
Programmable Timers
Programmable Timers
Keyboard Controller
Keyboard chip select from 87417
NMI Status & Control Register
0063h
NMI Status & Control Register
Aliased
Aliased
Aliased
0065h
NMI Status & Control Register
0067h
NMI Status & Control Register
0070h
NMI Mask (bit 7) & RTC address (bits 6::0)
NMI Mask (bit 7) & RTC address (bits 6::0)
NMI Mask (bit 7) & RTC address (bits 6::0)
NMI Mask (bit 7) & RTC address (bits 6::0)
0072h
Aliased from 0070h
Aliased from 0070h
Aliased from 0070h
0074h
0076h
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Address (es)
Functional Architecture
Notes
Resource
0071h
RTC Data
RTC Data
RTC Data
RTC Data
BIOS Timer
0073h
Aliased from 0071h
0075h
Aliased from 0071h
Aliased from 0071h
0077h
0080h – 0081h
0080h – 008F
0090h – 0091h
0092h
DMA Low Page Register
DMA Low Page Register (aliased)
System Control Port A (PC-AT control Port) (this port not
aliased in DMA range)
0093h – 009Fh
0094h
DMA Low Page Register (aliased)
Video Display Controller
Interrupt Controller 2
Interrupt Controller 2 (aliased)
Interrupt Controller 2 (aliased)
Interrupt Controller 2 (aliased)
Interrupt Controller 2 (aliased)
Interrupt Controller 2 (aliased)
Interrupt Controller 2 (aliased)
Interrupt Controller 2 (aliased)
DMA Controller 2
00A0h – 00A1h
00A4h – 00A5h
00A8h – 00A9h
00ACh – 00ADh
00B0h – 00B1h
00B4h – 00B5h
00B8h – 00B9h
00BCh – 00BDh
00C0h – 00DFh
00F0h
Clear NPX error
Resets IRQ13
00F8h – 00FFh
0102h
X87 Numeric Coprocessor
Video Display Controller
Secondary Fixed Disk Controller (IDE)
Primary Fixed Disk Controller (IDE)
Game I/O Port
0170h – 0177h
01F0h – 01F7h
0200h – 0207h
0220h – 022Fh
0238h – 023Fh
0278h – 027Fh
0290h – 0298h
02E8h – 02EFh
02F8h – 02FFh
0338h – 033Fh
0370h – 0375h
0376h
Serial Port A
Serial Port B
Parallel Port 3
NS HW monitor
Serial Port B
Serial Port B
Serial Port B
Secondary Floppy
Secondary IDE
0377h
Secondary IDE/Floppy
Parallel Port 2
0378h – 037Fh
03B4h – 03Bah
03BCh – 03BFh
03C0h – 03CFh
03D4h – 03Dah
03E8h – 03Efh
03F0h – 03F5h
03F6h – 03F7h
Monochrome Display Port
Parallel Port 1 (Primary)
Video Display Controller
Color Graphics Controller
Serial Port A
Floppy Disk Controller
Primary IDE – Sec Floppy
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Functional Architecture
Address (es)
Intel® Server Board SE7520JR2
Notes
Resource
03F8h – 03FFh
0400h – 043Fh
0461h
Serial Port A (primary)
DMA Controller 1, Extended Mode Registers
Extended NMI / Reset Control
DMA High Page Register
0480h – 048Fh
04C0h – 04CFh
04D0h – 04D1h
04D4h – 04D7h
04D8h – 04DFh
04E0h – 04FFh
051Ch
DMA Controller 2, High Base Register
Interrupt Controllers 1 and 2 Control Register
DMA Controller 2, Extended Mode Register
Reserved
DMA Channel Stop Registers
Software NMI (051Ch)
0678h – 067Ah
0778h – 077Ah
07BCh – 07Beh
0CF8h
Parallel Port (ECP)
Parallel Port (ECP)
Parallel Port (ECP)
PCI CONFIG_ADDRESS Register
0CF9h
Intel® Server Board SE7520JR2 Turbo and Reset
Control
0CFCh
PCI CONFIG_DATA Register
3.5.3
Accessing Configuration Space
All PCI devices contain PCI configuration space, accessed using mechanism #1 defined in the
PCI Local Bus Specification. If dual processors are used, only the processor designated as the
Boot Strap Processor (BSP) should perform PCI configuration space accesses. Precautions
must be taken to guarantee that only one processor performs system configuration.
Two Dword I/O registers in the chipset are used for the configuration space register access:
•
•
CONFIG_ADDRESS (I/O address 0CF8h)
CONFIG_DATA (I/O address 0CFCh)
When CONFIG_ADDRESS is written to with a 32-bit value selecting the bus number, device on
the bus, and specific configuration register in the device, a subsequent read or write of
CONFIG_DATA initiates the data transfer to/from the selected configuration register. Byte
enables are valid during accesses to CONFIG_DATA; they determine whether the configuration
register is being accessed or not. Only full Dword reads and writes to CONFIG_ADDRESS are
recognized as a configuration access by the chipset. All other I/O accesses to
CONFIG_ADDRESS are treated as normal I/O transactions.
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Functional Architecture
3.5.3.1
CONFIG_ADDRESS Register
CONFIG_ADDRESS is 32 bits wide and contains the field format shown in the following figure.
Bits [23::16] choose a specific bus in the system. Bits [15::11] choose a specific device on the
selected bus. Bits [10:8] choose a specific function in a multi-function device. Bit [7::1] select a
specific register in the configuration space of the selected device or function on the bus.
3.6 Clock Generation and Distribution
All buses on the baseboard operate using synchronous clocks. Clock synthesizer/driver circuitry
on the baseboard generates clock frequencies and voltage levels as required, including the
following:
•
200MHz differential clock at 0.7V logic levels. For Processor 0, Processor 1, Debug Port
and MCH.
•
•
100MHz differential clock at 0.7V logic levels on CK409B. For DB800 clock buffer.
100MHz differential clock at 0.7 Vlogic levels on DB800. For PCI Express Device it is the
MCH, PXH and full-length riser, which includes x4 PCI Express Slot. For SATA it is the
ICH5-R.
•
•
•
•
•
66MHz at 3.3V logic levels: For MCH and ICH5-R.
48MHz at 3.3V logic levels: For ICH5-R and SIO.
33MHz at 3.3V logic levels: For ICH5-R, Video, BMC and SIO.
14.318MHz at 2.5V logic levels: For ICH5-R and video.
10Mhz at 5V logic levels: For mBMC.
The PCI-X slot speed on the full-length riser card and on the low-profile riser card is determined
by the riser card in use.
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4. System BIOS
The BIOS is implemented as firmware that resides in the Flash ROM. It provides hardware-
specific initialization algorithms and standard PC-compatible basic input/output (I/O) services,
and standard Intel® Server Board features. The Flash ROM also contains firmware for certain
embedded devices. These images are supplied by the device manufacturers and are not
specified in this document.
The system BIOS includes the following components:
•
•
IA-32 Core – The IA-32 core contains standard services and components such as the
PCI Resource manager, ACPI support, POST, and runtime functionality.
Manageability Extensions – Intel servers build server management into the BIOS
through the Intelligent Platform Management Interface (IPMI) and baseboard
management hardware.
•
Extensible Firmware Interface – “EFI” provides an abstraction layer between the
operating system and system hardware.
•
•
Processor Microcode – BIOS includes microcode for the latest processors.
Option ROMs – BIOS includes option ROMs to enable on-board devices during boot.
4.1 BIOS Identification String
The BIOS Identification string is used to uniquely identify the revision of the BIOS being used on
the system. The string is formatted as illustrated in the following figure.
BoardId.OEMID.BuildType.Major.Minor.BuildID.BuildDateTime.Mod
Build Date and time in
MMDDYYYYHHMM format
Dxx = Development
Xxx = Power On
Axx = Alpha BIOS
Bxx = Beta BIOS
two digits:
One digit:
non-zero if any Separately
Updateable
Module has been updated
RCxx= Release Candidate
P = Production
xx = 2 digit number N/A for Production
two digits:
Four digits:
Three characters:
Increment
on each build
N character ID:
AN430TX, etc.
86A = Intel DPG
86B = Intel EPG
10A = Some OEM, etc.
Figure 17. BIOS Identification String
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System BIOS
As such, the BIOS ID for this platform takes the following form:
•
SE7520JR2 supporting DDR memory
SE7520JR22.86B.P.01.00.0002.081320031156
•
SE7520JR2 supporting DDR2 memory
SE7520JR23.86B.P.01.00.0002.081320031156
4.2 Flash Architecture and Flash Update Utility
The flash ROM contains system initialization routines, the BIOS Setup Utility, and runtime
support routines. The exact layout is subject to change, as determined by Intel. A 64-KB user
block is available for user ROM code or custom logos. The flash ROM also contains initialization
code in compressed form for onboard peripherals, like SCSI, NIC and video controllers. It also
contains support for the rolling single-boot BIOS update feature.
4.3 BIOS Power On Self Test (POST)
The BIOS Power On Self Test (POST) begins when the system is powered on. During POST,
the BIOS initializes and tests various sub-systems, sets up all major system operating
parameters, and gives the opportunity for any optionally installed add-in cards to execute setup
code. When complete, and if no errors are encountered, BIOS turns control of the system over
to the installed operating system.
As video is initialized during POST, the opportunity to view and alter the POST process is made
available through either a locally attached monitor or through remote console redirection.
4.3.1
User Interface
During the system boot-up POST process, there are two types of consoles used for displaying
the user interface: graphical or text based. Graphics consoles are in 640x480 mode; text
consoles use 80x25 mode.
The console output is partitioned into three windows: the System Activity/State, Splash
Screen/Diagnostic, and POST Activity. The POST Activity window displays information about
the current state of the system. The Splash Screen / Diagnostic window displays the OEM
splash screen or a diagnostic information screen. The POST Activity window displays
information about the currently executing portion of POST as well as user prompts and status
messages.
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System Activity/State
Splash Screen / Diagnostic Screen
POST Activity
Figure 18. POST Console Interface
4.3.1.1
System Activity Window
The top row of the screen is reserved for the system state window. On a graphics console, the
window is 640x48. On a text console, the window is 80x2.
The system state window may be in one of three forms, either an activity bar that scrolls while
the system is busy, a progress bar that measures percent complete for the current task, or an
attention required bar. The attention bar is useful for tasks that require user attention to
continue.
4.3.1.2
Splash Screen/Diagnostic Window
The middle portion of the screen is reserved for either a splash screen or diagnostic screen. On
a graphics console, the window is 640x384. On a text console, the window is 80x20.
In the BIOS Setup Utility, The Quiet Boot option is used to select which of the two screens is
displayed. If Quiet Boot is set to Enabled, a splash screen programmed into the BIOS is
displayed, hiding any POST progress information. If the Quiet Boot option is Disabled, all POST
progress information will be displayed to the screen. The factory default is to have the Quiet
Boot option enabled, displaying the Splash Screen. However, if during the POST process the
<ESC> key is pressed while the Splash Screen is being displayed, the view will change to the
diagnostic screen for the current boot only
4.3.1.2.1
System Diagnostic Screen
The diagnostic screen is the console where boot information, options and detected hardware
information are displayed.
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System BIOS
The Static Information Display area presents the following information:
•
•
•
•
Copyright message
BIOS ID
Current processor configuration
Installed physical memory size
4.3.1.2.2
Quiet Boot / OEM Splash Screen
The BIOS implements Quiet Boot, providing minimal startup display during BIOS POST.
System start-up must only draw the end user’s attention in the event of errors or when there is a
need for user action. By default, the system must be configured so that the local screen does
not display memory counts, device status, etc. It must present a "clean" BIOS start-up. The
only screen display allowed is the OEM splash screen and copyright notices.
The Quiet Boot process is controlled by a Setup Quiet-Boot option. If this option is set, the
BIOS displays an activity indicator at the top of the screen and a logo splash screen in the
middle section of the screen on the local console. The activity indicator measures POST
progress and continues until the operating system gains control of the system. The splash
screen covers up any diagnostic messages in the middle section of the screen. While the logo
is being displayed on the local console, diagnostic messages are being displayed on the remote
text consoles.
Quiet Boot may be disabled by disabling the Setup Quiet-Boot option or by the user pressing
the <Esc> key while in Quiet Boot mode. If Quiet Boot is disabled, the BIOS displays diagnostic
messages in place of the activity indicator and the splash screen.
With the use of an Intel supplied utility, the BIOS allows OEMs to override the standard Intel
logo with one of their own design
4.3.1.3
POST Activity Window
The bottom portion of the screen is reserved for the POST Activity window. On a graphics
console, the window is 640x48. On a text console, the window is 80x2.
The POST Activity window is used to display prompts for hot keys, as well as provide
information on system status.
4.3.2
BIOS Boot Popup Menu
The BIOS Boot Specification (BBS) provides for a Boot Menu Popup invoked by pressing the
<ESC> key during POST. The BBS Popup menu displays all available boot devices. The list
order in the popup menu is not the same as the boot order in BIOS setup; it simply lists all the
bootable devices from which the system can be booted.
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Table 17: Sample BIOS Popup Menu
Please select boot device:
1st Floppy
Hard Drives
ATAPI CDROM
LAN PXE
EFI Boot Manager
↓and↑ to move selection
Enter to select boot device
ESC to boot using defaults
4.4 BIOS Setup Utility
The BIOS Setup utility is provided to perform system configuration changes and to display
current settings and environment information.
The BIOS Setup utility stores configuration settings in system non-volatile storage. Changes
affected by BIOS Setup will not take effect until the system is rebooted. The BIOS Setup Utility
can be accessed during POST by using the <F2> key.
4.4.1
Localization
The BIOS Setup utility uses the Unicode standard and is capable of displaying Setup screens in
English, French, Italian, German, and Spanish. The BIOS supports these languages for
console strings as well.
Keyboard Commands
While in the BIOS Setup utility, the Keyboard Command Bar supports the keys specified in the
following table.
Table 18: BIOS Setup Keyboard Command Bar Options
Key
Option
Description
Enter Execute Command The Enter key is used to activate sub-menus, pick lists, or to select a sub-field. If a pick
list is displayed, the Enter key will select the pick list highlighted item, and pass that
selection in the parent menu.
ESC
Exit
The ESC key provides a mechanism for backing out of any field. This key will undo the
pressing of the Enter key. When the ESC key is pressed while editing any field or
selecting features of a menu, the parent menu is re-entered.
When the ESC key is pressed in any sub-menu, the parent menu is re-entered. When
the ESC key is pressed in any major menu, the exit confirmation window is displayed
and the user is asked whether changes can be discarded. If “No” is selected and the
Enter key is pressed, or if the ESC key is pressed, the user is returned to where they
were before ESC was pressed without affecting any existing any settings. If “Yes” is
selected and the Enter key is pressed, setup is exited and the BIOS continues with
POST.
Select Item
Select Item
The up arrow is used to select the previous value in a pick list, or the previous options
in a menu item's option list. The selected item must then be activated by pressing the
Enter key.
↑
↓
The down arrow is used to select the next value in a menu item’s option list, or a value
field’s pick list. The selected item must then be activated by pressing the Enter key.
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Key
Option
Description
Select Menu
The left and right arrow keys are used to move between the major menu pages. The
keys have no affect if a sub-menu or pick list is displayed.
↔
Tab
-
Select Field
The Tab key is used to move between fields. For example, Tab can be used to move
from hours to minutes in the time item in the main menu.
Change Value
The minus key on the keypad is used to change the value of the current item to the
previous value. This key scrolls through the values in the associated pick list without
displaying the full list.
+
Change Value
Setup Defaults
The plus key on the keypad is used to change the value of the current menu item to the
next value. This key scrolls through the values in the associated pick list without
displaying the full list. On 106-key Japanese keyboards, the plus key has a different
scan code than the plus key on the other keyboard, but will have the same effect.
F9
Pressing F9 causes the following to appear:
Load Setup Defaults?
[OK]
[Cancel]
If “OK” is selected and the Enter key is pressed, all setup fields are set to their default
values. If “Cancel” is selected and the Enter key is pressed, or if the ESC key is
pressed, the user is returned to where they were before F9 was pressed without
affecting any existing field values.
F7
Discard Changes
Pressing F7 causes the following message to appear:
Discard Changes?
[OK]
[Cancel]
If “OK” is selected and the Enter key is pressed, all changes are not saved and setup is
exited. If “Cancel” is selected and the Enter key is pressed, or the ESC key is pressed,
the user is returned to where they were before F7 was pressed without affecting any
existing values.
F10
Save Changes and Pressing F10 causes the following message to appear:
Exit
Save configuration changes and exit setup?
[OK] [Cancel]
If “OK” is selected and the Enter key is pressed, all changes are saved and setup is
exited. If “Cancel” is selected and the Enter key is pressed, or the ESC key is pressed,
the user is returned to where they were before F10 was pressed without affecting any
existing values.
4.4.2
Entering BIOS Setup
The BIOS Setup utility is accessed by pressing the <F2> hotkey during POST
4.4.2.1 Main Menu
The first screen displayed when entering the BIOS Setup Utility is the Main Menu selection
screen. This screen displays the major menu selections available. The following tables describe
the available options on the top level and lower level menus. Default values are shown in bold
text.
Table 19: BIOS Setup, Main Menu Options
Feature
Options
Help Text
Description
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Description
Feature
Options
Help Text
System Overview
AMI BIOS
Version
N/A
N/A
N/A
N/A
BIOS ID string (excluding the build
time and date)
Build Date
Processor
Type
BIOS build date
N/A
N/A
N/A
N/A
N/A
N/A
Processor brand ID string
Calculated processor speed
Speed
Count
Detected number of physical
processors
System Memory
Size
N/A
N/A
Amount of physical memory
detected
System Time
System Date
Language
HH:MM:SS
Use [ENTER], [TAB] or [SHIFT-
TAB] to select a field.
Configures the system time on a 24
hour clock. Default is 00:00:00
Use [+] or [-] to configure system
Time.
DAY MM/DD/YYYY
Use [ENTER], [TAB] or [SHIFT-
TAB] to select a field.
Configures the system date.
Default is [Build Date]. Day of the
week is automatically calculated.
Use [+] or [-] to configure system
Date.
Select the current
default language used
by the BIOS.
Select the current default language
used by BIOS.
English
French
German
Italian
Spanish
4.4.2.2
Advanced Menu
Table 20: BIOS Setup, Advanced Menu Options
Feature
Options
Help Text
Description
Advanced Settings
WARNING: Setting wrong values in below sections may cause system to malfunction.
Processor Configuration
IDE Configuration
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Configure processors.
Selects submenu.
Selects submenu.
Selects submenu.
Selects submenu.
Selects submenu.
Selects submenu.
Selects submenu.
Configure the IDE device(s).
Configure the Floppy drive(s).
Configure the Super I/O Chipset.
Configure the USB support.
Configure PCI devices.
Floppy Configuration
Super I/O Configuration
USB Configuration
PCI Configuration
Memory Configuration
Configure memory devices.
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4.4.2.2.1
Processor Configuration Sub-menu
Table 21: BIOS Setup, Processor Configuration Sub-menu Options
Feature
Options
Help Text
Description
Configure Advanced Processor Settings
Manufacturer
Brand String
Frequency
Intel
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Displays processor
manufacturer string
Displays processor brand ID
string
Displays the calculated
processor speed
FSB Speed
Displays the processor front-
side bus speed.
CPU 1
CPUID
N/A
N/A
Displays the CPUID of the
processor.
Cache L1
Cache L2
Cache L3
N/A
N/A
N/A
N/A
N/A
N/A
Displays cache L1 size.
Displays cache L2 size.
Displays cache L3 size. Visible
only if the processor contains
an L3 cache.
CPU 2
CPUID
N/A
N/A
Displays the CPUID of the
processor.
Cache L1
Cache L2
Cache L3
N/A
N/A
N/A
N/A
N/A
N/A
Displays cache L1 size.
Displays cache L2 size.
Displays cache L3 size. Visible
only if the processor contains
an L3 cache.
Processor Retest
If enabled, all processors will
be activated and retested on
the next boot. This option will
be automatically reset to
Rearms the processor sensors.
Disabled
Only displayed if the Intel
Management Module is
present.
Enabled
disabled on the next boot.
Max CPUID Value Limit
This should be enabled in
order to boot legacy OSes that
cannot support processors
with extended CPUID
functions.
Disabled
Enabled
Hyper-Threading Technology Disabled
Enable Hyper-Threading
Controls Hyper-Threading state.
Primarily used to support older
Operating Systems that do not
support Hyper Threading.
Technology only if OS
supports it.
Enabled
Intel ® Speed Step ™ Tech
Auto
Select disabled for maximum
CPU speed. Select enabled
to allow the OS to reduce
power consumption.
Note: This option may not be
present in early Beta releases.
Disabled
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4.4.2.2.2
IDE Configuration Sub-menu
Table 22: BIOS Setup IDE Configuration Menu Options
Feature
Options
Help Text
Description
IDE Configuration
Onboard P-ATA
Channels
Disabled
Disabled: disables the
integrated P-ATA Controller.
Controls state of integrated P-
ATA controller.
Primary
Secondary
Both
Primary: enables only the
Primary P-ATA Controller.
Secondary: enables only the
Secondary P-ATA Controller.
Both: enables both P-ATA
Controllers.
Onboard S-ATA
Channels
Disabled
Disabled: disables the
integrated S-ATA Controller.
Controls state of integrated S-
ATA controller.
Enabled
Enabled: enables the integrated
S-ATA Controller.
Configure S-ATA as
RAID
When enabled the S-ATA
channels are reserved to be
used as RAID.
Disabled
Enabled
A1-3rd M/A2-4th M
A1-4th M/A2-3rd M
S-ATA Ports
Definition
Defines priority between S-ATA Default set the S-ATA Port0 to 3rd
channels.
IDE Master channel & Port1 to 4th
IDE Master channel.
Otherwise set S-ATA Port0 to 4th
IDE Master channel & Port1 to 3rd
IDE Master channel.
Mixed P-ATA / S-ATA N/A
Lets you remove a P-ATA and
replace it by S-ATA in a given
channel. Only 1 channel can be
S-ATA.
Selects submenu for configuring
mixed P-ATA and S-ATA.
Primary IDE Master
Primary IDE Slave
N/A
N/A
N/A
While entering setup, BIOS auto Selects submenu with additional
detects the presence of IDE
devices. This displays the
status of auto detection of IDE
devices.
device details.
While entering setup, BIOS auto Selects submenu with additional
detects the presence of IDE
devices. This displays the
status of auto detection of IDE
devices.
device details.
Secondary IDE
Master
While entering setup, BIOS auto Selects submenu with additional
detects the presence of IDE
devices. This displays the
status of auto detection of IDE
devices.
device details.
Secondary IDE Slave N/A
While entering setup, BIOS auto Selects submenu with additional
detects the presence of IDE
devices. This displays the
status of auto detection of IDE
devices.
device details.
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Feature
Options
Help Text
Description
Third IDE Master
N/A
N/A
While entering setup, BIOS auto Selects submenu with additional
detects the presence of IDE
devices. This displays the
status of auto detection of IDE
devices.
device details.
Fourth IDE Master
While entering setup, BIOS auto Selects submenu with additional
detects the presence of IDE
devices. This displays the
status of auto detection of IDE
devices.
device details.
Hard Disk Write
Protect
Disable/Enable device write
protection. This will be effective unauthorized writes to hard
only if device is accessed
through BIOS.
Primarily used to prevent
Disabled
Enabled
drives.
IDE Detect Time Out
(Sec)
0
Select the time out value for
detecting ATA/ATAPI device(s). devices with longer spin up times.
Primarily used with older IDE
5
10
15
20
25
30
35
ATA(PI) 80Pin Cable
Detection
Select the mechanism for
detecting 80Pin ATA(PI) Cable. UDMA-66 and above. BIOS
detects the cable by querying the
The 80 pin cable is required for
Host & Device
Host
Device
host and/or device.
Table 23: Mixed P-ATA-S-ATA Configuration with only Primary P-ATA
Feature
Options
Help Text
Description
Mixed P-ATA / S-ATA
First ATA
Channel
Configure this channel to P-ATA or S-ATA.
P-ATA: Parallel ATA Primary channel.
S-ATA: Serial ATA.
Defines the S-ATA
device for this
P-ATA M-S
S-ATA M-S
channel. If the
Second ATA is
assigned S-ATA, this
option reverts to P-
ATA.
Second ATA
Channel
Configure this channel to P-ATA or S-ATA.
P-ATA: Parallel ATA Primary channel.
S-ATA: Serial ATA.
Defines the S-ATA
device for this
channel. If the First
ATA is assigned S-
ATA, this option
reverts to P-ATA.
P-ATA M-S
S-ATA M-S
A1-3rd M/A2-4th M
A1-4th M/A2-3rd M
None
3rd & 4th ATA
Channels
Configure this channel to P-ATA or S-ATA.
P-ATA: Parallel ATA Primary channel.
S-ATA: Serial ATA.
Display only. If the
First ATA or Second
ATA is assigned S-
ATA, this option
reverts to None.
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Intel® Server Board SE7520JR2
Table 24: BIOS Setup, IDE Device Configuration Sub-menu Selections
Options
Help Text
Description
Primary/Secondary/Third/Fourth IDE Master/Slave
Device
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A.
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Display detected device info
Display IDE device vendor.
Display IDE DISK size.
Display LBA Mode
Vendor
Size
LBA Mode
Block Mode
PIO Mode
Async DMA
Ultra DMA
S.M.A.R.T.
Type
Display Block Mode
Display PIO Mode
Display Async DMA mode
Display Ultra DMA mode.
Display S.M.A.R.T. support.
Not Installed
Auto
Select the type of device connected The Auto setting should work in
to the system.
most cases.
CDROM
ARMD
LBA/Large Mode
Disabled
Auto
Disabled: Disables LBA Mode.
Auto: Enabled LBA Mode if the
device supports it and the device is
not already formatted with LBA
Mode disabled.
The Auto setting should work in
most cases.
Block (Multi-Sector
Transfer) Mode
Disabled
Auto
Disabled: The Data transfer from
and to the device occurs one sector most cases.
at a time.
The Auto setting should work in
Auto: The data transfer from and to
the device occurs multiple sectors at
a time if the device supports it.
PIO Mode
Select PIO Mode.
The Auto setting should work in
Auto
most cases.
0
1
2
3
4
DMA Mode
Select DMA Mode.
Auto :Auto detected
The Auto setting should work in
most cases.
Auto
SWDMA0-0
SWDMA0-1
SWDMA0-2
MWDMA0-0
MWDMA0-1
MWDMA0-2
UWDMA0-0
UWDMA0-1
UWDMA0-2
UWDMA0-3
UWDMA0-4
UWDMA0-5
SWDMA :SinglewordDMAn
MWDMA :MultiwordDMAn
UWDMA :UltraDMAn
S.M.A.R.T.
Self-Monitoring, Analysis and
Reporting Technology.
The Auto setting should work in
most cases.
Auto
Disabled
Enabled
32Bit Data Transfer
Enable/Disable 32-bit Data Transfer
Disabled
Enabled
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4.4.2.2.3
Floppy Configuration Sub-menu
Table 25: BIOS Setup, Floppy Configuration Sub-menu Selections
Feature
Options
Help Text
Description
Floppy Configuration
Floppy A
Disabled
Select the type of floppy drive
connected to the system.
Note: Intel no longer
validates 720Kb &
2.88Mb drives.
720 KB 3 1/2"
1.44 MB 3 1/2"
2.88 MB 3 1/2"
Onboard Floppy Controller
Disabled
Enabled
Allows BIOS to Enable or
Disable Floppy Controller.
4.4.2.2.4
Super I/O Configuration Sub-menu
Table 26: BIOS Setup, Super I/O Configuration Sub-menu
Feature
Options
Help Text
Description
Configure Nat42x Super IO Chipset
Serial Port A Address Disabled
3F8/IRQ4
Allows BIOS to Select Serial Port A
Base Addresses.
Option that is used by other serial port
is hidden to prevent conflicting
settings.
2F8/IRQ3
3E8/IRQ4
2E8/IRQ3
Serial Port B Address Disabled
3F8/IRQ4
Allows BIOS to Select Serial Port B
Base Addresses.
Option that is used by other serial port
is hidden to prevent conflicting
settings.
2F8/IRQ3
3E8/IRQ4
2E8/IRQ3
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System BIOS
Intel® Server Board SE7520JR2
4.4.2.2.5
USB Configuration Sub-menu
Table 27: BIOS Setup, USB Configuration Sub-menu Selections
Feature
Options
Help Text
Description
List of USB
devices detected
by BIOS.
USB Configuration
USB Devices
Enabled
N/A
N/A
USB Function
Disabled
Enables USB HOST controllers.
When set to
disabled, other
USB options are
grayed out.
Enabled
Legacy USB Support Disabled
Keyboard only
Enables support for legacy USB. AUTO option
disables legacy support if no USB devices are
connected. If disabled, USB Legacy Support will
not be disabled until booting an OS.
Auto
Keyboard and Mouse
Port 60/64 Emulation
Enables I/O port 60/64h emulation support.
This should be enabled for the complete USB
keyboard legacy support for non-USB aware
OSes.
Disabled
Enabled
USB 2.0 Controller
Disabled
N/A
Enabled
USB 2.0 Controller
mode
FullSpeed
HiSpeed
Configures the USB 2.0 controller in HiSpeed
(480Mbps) or FullSpeed (12Mbps).
USB Mass Storage
Device Configuration
N/A
Configure the USB Mass Storage Class
Devices.
Selects submenu
with USB Device
enable.
a.
USB Mass Storage Device Configuration Sub-menu
Table 28: BIOS Setup, USB Mass Storage Device Configuration Sub-menu Selections
Feature
Options
Help Text
Description
USB Mass Storage Device Configuration
USB Mass Storage
Reset Delay
10 Sec
20 Sec
30 Sec
40 Sec
Number of seconds POST waits for the USB
mass storage device after start unit command.
Device #1
N/A
N/A
Only displayed if a device
is detected, includes a
DeviceID string returned
by the USB device.
Emulation Type
If Auto, USB devices less than 530MB will be
emulated as Floppy and remaining as hard drive.
Forced FDD option can be used to force a HDD
formatted drive to boot as FDD (Ex. ZIP drive).
Auto
Floppy
Forced FDD
Hard Disk
CDROM
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System BIOS
Feature
Device #n
Options
N/A
Help Text
Description
N/A
Only displayed if a device
is detected, includes a
DeviceID string returned
by the USB device.
Emulation Type
If Auto, USB devices less than 530MB will be
emulated as Floppy and remaining as hard drive.
Forced FDD option can be used to force a HDD
formatted drive to boot as FDD (Ex. ZIP drive).
Auto
Floppy
Forced FDD
Hard Disk
CDROM
4.4.2.2.6
PCI Configuration Sub-menu
This sub-menu provides control over PCI devices and their option ROMs. If the BIOS is
reporting POST error 146, use this menu to disable option ROMs that are not required to boot
the system.
Table 29: BIOS Setup, PCI Configuration Sub-menu Selections
Feature
Options
Help Text
Description
PCI Configuration
Onboard Video
Disabled
Enable/Disable on board VGA
Controller
Enabled
Disabled
Enabled
Dual Monitor Video
Select which graphics controller to use Grayed out if Onboard
as the primary boot device. Enabled
selects the on board device.
Video is set to "Disabled."
Onboard NIC 1 (Left)
Onboard NIC 1 ROM
Onboard NIC 2 (Right)
Onboard NIC 2 ROM
Onboard SCSI
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Grayed out if device is
disabled.
Grayed out if device is
disabled.
Onboard SCSI ROM
Onboard SCSI Mode
Grayed out if device is
disabled.
IM/IME = Integrated
Mirroring/Integrated Mirroring
Enhanced
After OS installation with a
selected SCSI RAID mode,
only change this mode
selection if prepared to
rebuild RAID array.
IM/IME
IS
IS = Integrated Striping
Changing the mode could
damage current OS
installation on RAID volume.
Before changing modes, back up
array data and delete existing arrays,
if any. Otherwise, loss of all data may
occur.
Grayed out if device is
disabled.
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System BIOS
Intel® Server Board SE7520JR2
Description
Feature
Options
Disabled
Help Text
Slot 1 Option ROM
PCI-X 64/133
PCI-X 64/133
PCI-X 64/133
Enabled
Disabled
Enabled
Disabled
Enabled
Slot 2 Option ROM
Slot 3 Option ROM
Visible only when installed
riser supports this slot.
Slot 4 Option ROM
Slot 5 Option ROM
Slot 6 Option ROM
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
PCI-X 64/133
PCI-X 64/133
PCI-X 64/133
Visible only when installed
riser supports this slot.
Visible only when installed
riser supports this slot.
Visible only when installed
riser supports this slot.
4.4.2.2.7
Memory Configuration Sub-menu
This sub-menu provides information about the DIMMs detected by the BIOS. The DIMM
number is printed on the baseboard next to each device.
Table 30: BIOS Setup, Memory Configuration Sub-menu Selections
Feature
Options
Help Text
Description
System Memory Settings
DIMM 1A
DIMM 1B
DIMM 2A
DIMM 2B
Installed
Informational display.
Not Installed
Disabled
Mirror
Spare
Installed
Not Installed
Disabled
Mirror
Informational display.
Informational display.
Informational display.
Spare
Installed
Not Installed
Disabled
Mirror
Spare
Installed
Not Installed
Disabled
Mirror
Spare
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System BIOS
Feature
Options
Help Text
Description
DIMM 3A
DIMM 3B
Installed
Not Installed
Disabled
Mirror
Informational display.
Spare
Installed
Not Installed
Disabled
Mirror
Informational display.
Spare
Extended Memory Test
Memory Retest
1 MB
Settings for extended memory test
1 KB
Every Location
Disabled
Disabled
Enabled
If "Enabled", BIOS will activate and
retest all DIMMs on the next
system boot.
This option will automactically
reset to "Disabled" on the next
system boot.
Memory Remap Feature
Disabled
Enable: Allow remapping of
overlapped PCI memory above the
total physical memory.
Enabled
Disable: Do not allow remapping of
memory.
Memory Mirroring / Sparing
Disabled provides the most
memory space. Sparing reserves
memory to replace failures.
Mirroring keeps a second copy of
memory contents.
Sparing or Mirroring is
grayed out if the installed
DIMM configuration does
not support it.
Disabled
Spare
Mirror
4.4.2.3
Boot Menu
Table 31: BIOS Setup, Boot Menu Selections
Feature
Options
Help Text
Description
Boot Settings
Boot Settings Configuration
Boot Device Priority
Hard Disk Drives
N/A
N/A
N/A
Configure settings during system boot.
Selects submenu.
Selects submenu.
Specifies the boot device priority sequence.
Specifies the boot device priority sequence from
available hard drives.
Selects submenu.
Selects submenu.
Selects submenu.
Removable Drives
CD/DVD Drives
N/A
N/A
Specifies the boot device priority sequence from
available removable drives.
Specifies the boot device priority sequence from
available CD/DVD drives.
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System BIOS
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4.4.2.3.1
Boot Settings Configuration Sub-menu Selections
Table 32: BIOS Setup, Boot Settings Configuration Sub-menu Selections
Feature
Options
Help Text
Description
Boot Settings Configuration
Quick Boot
Disabled
Allows BIOS to skip certain tests while booting. This
will decrease the time needed to boot the system.
Enabled
Disabled
Enabled
Quiet Boot
Disabled: Displays normal POST messages.
Enabled: Displays OEM Logo instead of POST
messages.
(this is
conflict with
previous
words in this
doc. Based
on my
memory, it is
enabled by
default)
Bootup Num-Lock
Select power-on state for Numlock.
Select support for PS/2 mouse.
Off
On
PS/2 Mouse Support
Disabled
Enabled
Auto
POST Error Pause
Disabled
Enabled
If enabled, the system will wait for user intervention
on critical POST errors. If disabled, the system will
boot with no intervention, if possible.
Hit ‘F2’ Message Display
Scan User Flash Area
Disabled
Enabled
Displays "Press ‘F2’ to run Setup" in POST.
Allows BIOS to scan the Flash ROM for user
binaries.
Disabled
Enabled
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System BIOS
4.4.2.3.2
Boot Device Priority Sub-menu Selections
Table 33: BIOS Setup, Boot Device Priority Sub-menu Selections
Feature
Options
Help Text
Description
Boot Device Priority
1st Boot Device
Varies
Specifies the boot sequence from the
available devices.
Number of entries will vary based on
system configuration.
A device enclosed in parenthesis has
been disabled in the corresponding type
menu.
nth Boot Device
Varies
Specifies the boot sequence from the
available devices.
A device enclosed in parenthesis has
been disabled in the corresponding type
menu.
4.4.2.3.3
Hard Disk Drive Sub-menu Selections
Table 34: BIOS Setup, Hard Disk Drive Sub-Menu Selections
Feature
Options
Help Text
Description
Hard Disk Drives
1st Drive
Varies
Specifies the boot sequence from the available
devices.
Varies based on system configuration.
Varies based on system configuration.
nth Drive
Varies
Specifies the boot sequence from the available
devices.
4.4.2.3.4
Removable Drive Sub-menu Selections
Table 35: BIOS Setup, Removable Drives Sub-menu Selections
Feature
Options
Help Text
Description
Removable Drives
1st Drive
Varies
Specifies the boot sequence from the available
devices.
Varies based on system configuration.
Varies based on system configuration.
nth Drive
Varies
Specifies the boot sequence from the available
devices.
4.4.2.3.5
ATAPI CDROM drives sub-menu selections
Table 36: BIOS Setup, CD/DVD Drives Sub-menu Selections
Feature
CD/DVD Drives
Options
Help Text
Description
Varies based on system configuration.
1st Drive
Varies
Specifies the boot sequence from the available
devices.
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nth Drive
Varies
Specifies the boot sequence from the available
devices.
Varies based on system configuration.
4.4.2.4
Security Menu
Table 37: BIOS Setup, Security Menu Options
Feature
Security Settings
Options
Help Text
Description
Informational display.
Informational display.
Administrator
Password is
N/A
Install / Not installed
User Password is
N/A
N/A
Install / Not installed
Set Admin
Password
Set or clear Admin password
Pressing enter twice will clear the
password. This option is grayed
our when entering setup with a
user password.
Set User Password N/A
Set or clear User password
Pressing enter twice will clear the
password.
User Access Level
No Access
LIMITED: allows only limited fields This node is grayed out and
to be changed such as Date
becomes active only when Admin
password is set.
View Only
Limited
and Time.
NO ACCESS: prevents User
access to the Setup Utility.
Full Access
VIEW ONLY: allows access to the
Setup Utility but the fields can not
be changed.
FULL: allows any field to be
changed.
Clear User
Password
N/A
Immediately clears the user
password.
Admin uses this option to clear
User password (Admin password
is used to enter setup is required).
This node is gray if Administrator
password is not installed.
Fixed disk boot
sector protection
Enable/Disable Boot Sector Virus
Protection.
Disabled
Enabled
Disabled
Enabled
1 minute
2 minutes
5 minutes
10 minutes
20 minutes
60 minutes
120 minutes
[L]
Password On Boot
If enabled, requires password
entry before boot.
This node is grayed out if a user
password is not installed.
Secure Mode Timer
Period of key/PS/2 mouse
This node is grayed out if a user
password is not installed.
inactivity specified for Secure
Mode to activate. A password is
required for Secure Mode to
function. Has no effect unless at
least one password is enabled.
Secure Mode Hot
Key (Ctrl-Alt- )
Key assigned to invoke the secure This node is grayed out if a user
mode feature. Cannot be enabled
unless at least one password is
enabled. Can be disabled by
password is not installed.
[Z]
entering a new key followed by a
backspace or by entering delete.
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System BIOS
Feature
Secure Mode Boot
Options
Disabled
Help Text
Description
This node is grayed out if a user
password is not installed.
When enabled, allows the host
system to complete the boot
process without a password. The
keyboard will remain locked until a
password is entered. A password
is required to boot from diskette.
Enabled
Diskette Write
Protect
Disable diskette write protection
when Secure mode is activated. A password is not installed. This
password is required to unlock the node is hidden if the Intel
This node is grayed out if a user
Disabled
Enabled
system.
Management Module is not
present.
Video Blanking
Power Switch Inhibit
NMI Control
Blank video when Secure mode is This node is grayed out if a user
Disabled
activated. A password is required
to unlock the system. This option
controls the embedded video
controller only.
password is not installed. This
node is hidden if the Intel
Management Module is not
present.
Enabled
This node is grayed out if a user
password is not installed. This
node is hidden if the Intel
Management Module is not
present.
Disabled
Disable the Front Panel Power
Switch when Secure mode is
activated. A password is required
to unlock the system.
Enabled
Disabled
Enable / disable NMI control for
the front panel NMI button.
Enabled
4.4.2.5
Server Menu
Table 38: BIOS Setup, Server Menu Selections
Feature
Options
Help Text
Description
System management
Serial Console Features
Event Log configuration
Assert NMI on SERR
N/A
N/A
N/A
N/A
N/A
Selects submenu.
Selects submenu.
Selects submenu.
Configures event logging.
Disabled
Enabled
Disabled
Enabled
If enabled, NMI is generated on
SERR and logged.
Assert NMI on PERR
If enabled, NMI is generated.
SERR option needs to be
enabled to activate this option.
Grayed out if “NMI on
SERR” is disabled.
Resume on AC Power Loss
Determines the mode of
operation if a power loss occurs.
Stays off, the system will remain
“Last State” is only
displayed if the Intel
Management Module is
Stays Off
Power On
Last State
off once power is restored. Power present. When
On, boots the system after power displayed, “Last State” is
is restored.
the default.
When set to “Stays Off,”
“Power Switch Inhibit” is
disabled.
FRB-2 Policy
Revision 1.0
This controls action if the boot
processor will be disabled or not. not disable BSP” are only
“Disable BSP” and “Do
Disable BSP
Do not disable BSP
Retry on Next Boot
Disable FRB2 Timer
displayed if the Intel
Management Module is
present.
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Description
This controls the time limit for
add-in card detection. The system
is reset on timeout.
Feature
Late POST Timeout
Options
Disabled
Help Text
5 minutes
10 minutes
15 minutes
20 minutes
Disabled
5 minutes
10 minutes
15 minutes
20 minutes
Disabled
5 minutes
10 minutes
15 minutes
20 minutes
Stay On
Hard Disk OS Boot Timeout
PXE OS Boot Timeout
This controls the time limit
allowed for booting an operating
system from a Hard disk drive.
The action taken on timeout is
determined by the OS Watchdog
Timer policy setting.
This controls the time limit
allowed for booting an operating
system using PXE boot. The
action taken on timeout is
determined by OS Watchdog
Timer policy setting.
OS Watchdog Timer Policy
Platform Event Filtering
Controls the policy upon timeout.
Stay on action will take no overt
action. Reset will force the
system to reset. Power off will
force the system to power off.
Reset
Power Off
Disabled
Disable trigger for system sensor
events.
Enabled
4.4.2.5.1
System Management Sub-menu Selections
Table 39: BIOS Setup, System Management Sub-menu Selections
Feature
Options
Help Text
Description
Server Board Part Number
Server Board Serial Number
NIC 1 MAC Address
NIC 2 MAC Address
System Part Number
System Serial Number
Chassis Part Number
Chassis Serial Number
BIOS Version
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Field contents varies
Field contents varies
Field contents varies
Field contents varies
Field contents varies
Field contents varies
Field contents varies
Field contents varies
BIOS ID string (excluding the
build time and date).
BMC Device ID
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Field contents varies
Field contents varies
Field contents varies
Field contents varies
Field contents varies
BMC Firmware Revision
BMC Device Revision
PIA Revision
SDR Revision
HSC FW Revision (HSBP)
Firmware revision of the Hot-
swap controller. Displays n/a if
the controller is not present.
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System BIOS
4.4.2.5.2
Serial Console Features Sub-menu Selections
Table 40: BIOS Setup, Serial Console Features Sub-menu Selections
Feature
Options
Help Text
Description
Serial Console Features
BIOS Redirection Port
If enabled, BIOS uses the specified serial
When the Intel
Disabled
port to redirect the console to a remote ANSI Management Module is
Serial A
Serial B
terminal. Enabling this option disables Quiet
Boot.
present, the help text
directs the user to
select Serial B for Serial
Over LAN.
If enabled, BIOS uses the specified serial
port to redirect the console to a remote ANSI
terminal. Enabling this option disables Quiet
Boot. For Serial Over LAN, select Serial B.
Baud Rate
9600
N/A
19.2K
38.4K
57.6K
115.2K
Flow Control
No Flow Control If enabled, it will use the Flow control
selected.
CTS/RTS
CTS/RTS = Hardware
XON/XOFF
XON/XOFF = Software
CTS/RTS + CD
CTS/RTS + CD = Hardware + Carrier Detect
for modem use.
Terminal Type
PC-ANSI
VT100+
VT100+ selection only works for English as
the selected language. VT-UTF8 uses
Unicode. PC-ANSI is the standard PC-type
terminal.
VT-UTF8
ACPI Redirection port
Serial Port Connector
Enable / Disable the ACPI OS Headless
Console Redirection.
Disabled
Serial A
Serial B
Serial A
Serial B
Selects which serial port will be routed to the
serial port connector on the back of the
chassis. Serial A selects UARTA and Serial
B selects UARTB.
4.4.2.5.3
Event Log Configuration Sub-menu Selections
Table 41: BIOS Setup, Event Log Configuration Sub-menu Selections
Feature
Options
Help Text
Description
Event Log Configuration
Clear All Event Logs
Setting this to Enabled will clear the System
Event Log during the next boot.
Disabled
Enabled
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System BIOS
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Feature
BIOS Event Logging
Options
Disabled
Help Text
Select enabled to allow logging of BIOS
events.
Description
Enables BIOS to log events
to the SEL. This option
controls BIOS events only.
Enabled
Critical Event Logging
Disabled
If enabled, BIOS will detect and log events for Enable SMM handlers to
system critical errors. Critical errors are fatal
to system operation. These errors include
PERR, SERR, ECC.
detect and log events to
SEL.
Enabled
ECC Event Logging
PCI Error Logging
FSB Error Logging
Hublink Error Logging
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Enables or Disables ECC Event Logging.
Grayed out if "Critical Event
Logging" option is disabled.
Enables or Disables PCI Error Logging.
Grayed out if "Critical Event
Logging" option is disabled.
Enables or Disables Front-Side Bus Error
Logging.
Grayed out if "Critical Event
Logging" option is disabled.
Enables or Disables Hublink Error Logging.
Grayed out if "Critical Event
Logging" option is disabled.
4.4.2.6
Exit Menu
Table 42: BIOS Setup, Exit Menu Selections
Help Text
Feature
Options
Exit Options
Save Changes N/A
and Exit
Exit system setup after saving the changes.
F10 key can be used for this operation.
Exit system setup without saving any changes.
ESC key can be used for this operation.
Discard
Changes and
Exit
N/A
Discard
Changes
N/A
N/A
Discards changes done so far to any of the setup questions.
F7 key can be used for this operation.
Load Setup
Defaults
Load Setup Default values for all the setup questions.
F9 key can be used for this operation.
Load Custom
Defaults
N/A
N/A
Load custom defaults.
Save Custom
Defaults
Save custom defaults
4.5 Rolling BIOS and On-line Updates
The Online Update nomenclature refers to the ability to update the BIOS while the server is
online and in operation, as opposed to taking the server out of operation while performing a
BIOS update. The rolling BIOS nomenclature refers to the capability of having two copies of
BIOS: the current one in use, and a second BIOS to which an updated BIOS version can be
written. When ready, the system can roll forward to the new BIOS. In case of a failure with the
new version, the system can roll back to the previous version.
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System BIOS
The BIOS relies on specialized hardware and additional flash space to accomplish online
update/rolling of the BIOS. To this end, the flash is divided into two partitions, primary and
secondary. The active partition from which the system boots shall be referred to as the primary
partition. The AMI FLASH update suite and Intel Online updates preserve the existing BIOS
image on the primary partition. BIOS updates are diverted to the secondary partition. After the
update is complete, a notification flag is set. During the subsequent boot following the BIOS
update, the system continues to attempt to boot from the primary BIOS partition. On determining
that a BIOS update occurred in the previous boot, the system then attempts to boot from the
new BIOS. If a failure happens while booting to the new BIOS, the specialized hardware on the
system switches back to the primary BIOS partition, thus affecting a “Roll Back”.
4.5.1
Flash Update Utility
Server platforms support a DOS-based firmware update utility. This utility loads a fresh copy of
the BIOS into the flash ROM.
The BIOS update may affect the following items:
•
•
The system BIOS, including the recovery code, setup utility and strings.
Onboard video BIOS, SCSI BIOS, and other option ROMS for the devices embedded on
the server board.
•
•
OEM binary area.
Microcode updates.
4.5.1.1
Flash BIOS
An afuXXXAMI Firmware Update utility (such as afudos, AFUWIN, afulnx, or AFUEFI) is
required for a BIOS update.
4.5.1.2
User Binary Area
The baseboard includes an area in flash for implementation-specific OEM add-ons. This OEM
binary area can be updated as part of the system BIOS update or it can be updated
independent of the system BIOS.
4.5.1.3
Recovery Mode
Three conditions can cause the system to enter recovery mode:
•
•
•
Pressing a hot key
Setting the recovery jumper (J1H2, labeled RCVR BOOT) to pins 2-3
Damaging the ROM image, which will cause the system to enter recovery and update
the system ROM without the boot block.
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System BIOS
4.5.1.4
Intel® Server Board SE7520JR2
BIOS Recovery
The BIOS has a ROM image size of 2 MB. A standard 1.44MB floppy diskette cannot hold the
entire ROM file due to the large file size. To compensate for this, a Multi-disk recovery method
is available for BIOS recovery.
The BIOS contains a primary and secondary partition, and can support rolling BIOS updates.
The recovery process performs an update on the secondary partition in the same fashion that
the normal flash update process updates the secondary partition. After recovery is complete
and the power is cycled to the system, the BIOS partitions switch and the code executing POST
will be the code that was just flashed from the recovery media. The BIOS is made up of a boot
block recovery section, a main BIOS section, an OEM logo/user binary section, and an NVRAM
section. The NVRAM section will either be preserved or destroyed based on a hot key press
during invocation of the recovery. All the other sections of the secondary BIOS will be updated
during the recovery process. If an OEM wishes to preserve the OEM section across an update,
it is recommended that the OEM modify the provided AMIBOOT.ROMfile with the user binary or
OEM logo tools before performing the recovery.
A BIOS recovery can be accomplished from one of the following devices: a standard 1.44 or
2.88 MB floppy drive, an USB Disk-On-Key, an ATAPI CD-ROM/DVD, an ATAPI ZIP drive, or a
LS-120/LS-240 removable drive.
The recovery media must include the BIOS image file, AMIBOOT.ROM.
The recovery mode procedure is as follows:
1. Insert or plug-in the recovery media with the AMIBOOT.ROM file.
2. Power on the system. When progress code E9 is displayed on port 80h, the system will
detect the recovery media (if there is no image file present, the system will cycle through
progress code F1 to EF).
3. When F3 is displayed on port 80h, the system will read the BIOS image file.
Note: Three different hot-keys can be invoked:
•
•
•
<Ctrl+Home> - Recovery with CMOS destroyed and NVRAM preserved.
<Ctrl+PageDown> - Recovery with both CMOS and NVRAM preserved.
<Ctrl+PageUp> - Recovery with both CMOS and NVRAM destroyed.
4.5.2
.Configuration Reset
Setting the Clear CMOS jumper (board location J1H2 jumper Row ‘C’) produces a “reset system
configuration” request. When a request is detected, the BIOS loads the default system
configuration values during the next POST.
In systems configured with an Intel Management Module, the CMOS can be cleared without
opening the chassis. Using the control panel, the user can hold the reset button for 4 seconds
and then press the power button while still pressing the reset button. In addition, IMM give the
capability of having software issue a “reset system configuration” request. Software can send a
specific OEM command to the Sahalee BMC to indicate the request.
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System BIOS
4.6 OEM Binary
System customers can supply 16 KB of code and data for use during POST and at run-time.
Individual platforms may support a larger user binary. User binary code is executed at several
defined hook points during POST.
The user binary code is stored in the system flash. If no run-time code is added, the BIOS
temporarily allocates a code. If run-time code is present, the BIOS shadows the entire block as
though it were an option ROM. The BIOS leaves this region writeable to allow the user binary to
update any data structures it defines. System software can locate a run-time user binary by
searching for it like an option ROM. The system vendor can place a signature within the user
binary to distinguish it from other option ROMs. Refer to the SE7520JR2 BIOS EPS for further
details.
4.7 Security
The BIOS provides a number of security features. This section describes the security features
and operating model.
The BIOS uses passwords to prevent unauthorized tampering with the system. Once secure
mode is entered, access to the system is allowed only after the correct password(s) has been
entered. Both user and administrator passwords are supported by the BIOS. To set a user
password, an administrator password must be entered during system configuration using the
BIOS setup menu. The maximum length of the password is seven characters. The password
cannot have characters other than alphanumeric (a-z, A-Z, 0-9).
Once set, a password can be cleared by entering the password change mode and pressing
enter twice without inputting a string. All setup fields can be modified when entering the
administrator password. The “user access level” setting in the BIOS setup Security menu
controls the user access level. The administrator can choose “No Access” to block the user from
accessing any setup features. “Limited Access” will allow only the date/time fields and the user
password to be changed. “View Only” allows the user to enter BIOS setup, but not change any
settings.
Administrator has control over all fields in the setup, including the ability to clear the user
password.
If the user enters three wrong passwords in a row during the boot sequence, the system will be
placed into a halt state. This feature makes it difficult to break the password by “trial and error.”
The BIOS Setup may provide an option for setting the EMP password. However, the EMP
password is only utilized by the mBMC; this password does not affect the BIOS security in any
way, nor does the BIOS security engine provide any validation services for this password. EMP
security is handled primarily through the mBMC and EMP utilities.
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4.7.1
Operating Model
The following table summarizes the operation of security features supported by the BIOS.
Some security features require the Intel Management Module (IMM) to be installed. These
include “Diskette Write Protect”, “Video Blanking”, and “Power Switch inhibit.”
Table 43: Security Features Operating Model
Mode
Entry
Entry Criteria
Behavior
Exit Criteria After Exit
Method/
Event
Secure boot Power
On/Reset
User Password Prompts for password if
and Secure Boot booting from drive A.
User
Password
Floppy writes are re-
enabled. Front panel
switches are re-enabled.
PS/2 Keyboard and PS/2
mouse inputs are
Enabled
Enters secure mode just Admin
before scanning option
ROMs as indicated by
flashing LEDs on the
keyboard. Disables the
NMI switch on the front
panel if enabled in Setup.
Password
accepted. System
attempts to boot from drive
A. If the user enters
correct password, and
drive A is bootable, the
system boots normally
Accepts no input from
PS/2 mouse or PS/2
keyboard; however, the
Mouse driver is allowed
to load before a
password is required. If
booting from drive A and
the user enters correct
password, the system
boots normally.
If the IMM module is
installed and the options
are enabled in Setup, the
system also blanks on-
board video, disables
floppy writes, and
disables the power and
reset switches on the
front panel.
Password
on boot
Power
On/Reset
User Password System halts for user
User
Password
Admin
Front Panel switches are
re-enabled. PS/2
Keyboard and PS/2 mouse
inputs are accepted. The
system boots normally.
Boot sequence is
set and
Password before
password on
boot enabled
scanning option ROMs.
The system is not in
Password
and Secure Boot secure mode. No mouse
Disabled in
setup
or keyboard input is
accepted except the
password.
determined by setup
options.
Fixed disk
Power
Set feature to
Will write protect the
Set feature
Hard drive will behave
boot sector On/Reset
Write Protect in master boot record of the to Normal in normally.
Setup
IDE hard drives only if the Setup
system boots from a
floppy. The BIOS will
also write protect the boot
sector of the drive C: if it
is an IDE drive.
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System BIOS
Administrator/User Passwords and F2 Setup Usage Model
Notes:
•
•
•
Visible=option string is active and changeable
Hidden=option string is inactive and not visible
Shaded=option string is gray-out and view-only
There are three possible password scenarios:
Scenario #1
Administrator Password Is Not Installed
User Password Is
Not Installed
Login Type: N/A
Set Admin Password (visible)
Set User Password (visible)
User Access Level [Full]** (shaded)
Clear User Password (hidden)
** User Access Level option will be Full and Shaded as long as the administrator/supervisor
password is not installed.
Scenario #2
Administrator Password Is Installed
User Password Is
Installed
Login Type: Admin/Supervisor
Set Admin Password (visible)
Set User Password (visible)
User Access Level [Full] (visible)
Clear User Password (visible)
Login Type: User
Set Admin Password (hidden)
Set User Password (visible)
User Access Level [Full] (Shaded)
Clear User Password (hidden)
Scenario #3
Administrator Password Is Installed
User Password Is
Not Installed
Login Type: Supervisor
Set Admin Password (visible)
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Set User Password (visible)
User Access Level [Full] (visible)
Clear User Password (hidden)
Login Type: <Enter>
Set Admin Password (hidden)
Set User Password (visible)
User Access Level [Full] (Shaded)
Clear User Password (hidden)
4.7.2
Password Clear Jumper
If the user or administrator password(s) is lost or forgotten, moving the password clear jumper
(board location J1H3) to the clear position will clear both passwords. The BIOS determines if
the password clear jumper is in the clear position during BIOS POST and clears any passwords
if present. The password clear jumper must be restored to its original position before a new
password(s) can be set.
4.8 Extensible Firmware Interface (EFI)
When EFI is selected as a boot option, the BIOS will support an EFI Specification 1.10
compliant environment. More details on EFI are available at
http://developer.intel.com/technology/efi/index.htm
4.8.1
EFI Shell
The EFI Shell is a special type of EFI application that allows EFI commands and other EFI
applications to be launched. The BIOS implements an EFI shell in flash and the shell can be
invoked from the BIOS provided EFI environment. The EFI shell provided in flash implements
all the commands specified in the EFI1.1ShellCommands.pdf document that comes with the
EFI sample implementation, revision 1.10.14.62 (available from
http://developer.intel.com/technology/efi/main_sample.htm ).
4.9 Operating System Boot, Sleep, and Wake
The IPMI 1.5 specification, chapter 22.10 and 22.11, has provisions for server management
devices to set certain boot parameters by setting boot flags. Among the boot flags, which are
parameter #5 in the IPMI specification, the BIOS checks data 1-3 for forced boot options.
The BIOS supports force boots from: PXE, HDD, FDD, and CD.
On each boot, the BIOS determines what changes to boot options have been set by invoking
the Get System Boot Options Command, takes appropriate action, and clears these settings.
4.9.1
Microsoft* Windows* Compatibility
Intel Corporation and Microsoft Corporation co-author design guides for system designers using
Intel® processors and Microsoft* operating systems. These documents are updated yearly to
address new requirements and current trends.
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System BIOS
PC200x specifications are intended for systems that are designed to work with Windows 2000*
and Windows XP* class operating systems. The Hardware Design Guide (HDG) for the
Windows XP platform is intended for systems that are designed to work with Windows XP class
operating systems. Each specification classifies the systems further and has requirements
based on the intended usage for that system. For example, a server system that will be used in
small home/office environments has different requirements than one used for enterprise
applications. The BIOS supports HDG 3.0.
4.9.2
Advanced Configuration and Power Interface (ACPI)
The BIOS is ACPI 2.0c compliant. The primary role of the BIOS is to provide ACPI tables.
During POST, the BIOS creates the ACPI tables and locates them in extended memory (above
1MB). The location of these tables is conveyed to the ACPI-aware operating system through a
series of tables located throughout memory. The format and location of these tables is
documented in the publicly available ACPI specification.
To prevent conflicts with a non-ACPI-aware operating system, the memory used for the ACPI
tables is marked as “reserved”.
As described in the ACPI specification, an ACPI-aware operating system generates an SMI to
request that the system be switched into ACPI mode. The BIOS responds by setting up all
system (chipset) specific configuration required to support ACPI, and sets the SCI_EN bit as
defined by the ACPI specification. The system automatically returns to legacy mode on hard
reset or power-on reset.
The BIOS supports S0, S1, S4, and S5 states. S1 and S4 are considered sleep states. The
ACPI specification defines the sleep states and requires the system to support at least one of
them.
While entering the S4 state, the operating system saves the context to the disk and most of the
system is powered off. The system can wake on a power button press, or a signal received from
a wake-on-LAN compliant LAN card (or onboard LAN), modem ring, PCI power management
interrupt, or RTC alarm. The BIOS performs complete POST upon wake up from S4, and
initializes the platform.
The system can wake from the S1 state using a PS/2 keyboard, mouse, or USB device, in
addition to the sources described above.
The wake-up sources are enabled by the ACPI operating systems with cooperation from the
drivers; the BIOS has no direct control over the wakeup sources when an ACPI operating
system is loaded. The role of the BIOS is limited to describing the wakeup sources to the
operating system and controlling secondary control/status bits via the DSDT table.
The S5 state is equivalent to operating system shutdown. No system context is saved.
4.9.2.1
Sleep and Wake Functionality
The BIOS supports a control panel power button. The power button is a request that is
forwarded by the mBMC to the ACPI power state machines in the chipset. It is monitored by the
mBMC and does not directly control power on the power supply.
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The BIOS supports a control panel sleep button. The sleep button may not be provided on all
control panel designs. On systems where the sleep button is optional, a system configuration
option will be provided to enable or disable the sleep button. The ACPI tables will be updated to
indicate the presence or absence of the sleep button. Removal of the sleep button does not
prevent an ACPI OS from entering a sleep state.
The sleep button has no effect unless an operating system is running. If the OS is running,
pressing the sleep button causes an event. The OS will cause the system to transition to the
appropriate ACPI system state depending on the current user settings.
The platform supports a control panel reset button. The reset button is a request that is
forwarded by the mBMC to the chipset. The BIOS does not affect the behavior of the reset
button.
The BIOS supports a control panel NMI button. The NMI button may not be provided on all
control panel designs. The NMI button is a request that causes the mBMC to generate an NMI
(non-maskable interrupt). The NMI is captured by the BIOS during Boot Services time or the
OS during Runtime. The BIOS will simply halt the system upon detection of the NMI.
4.9.2.2
Power Switch Off to On
The chipset may be configured to generate wakeup events for several different system events:
Wake on LAN, PCI Power Management Interrupt (PMI), and Real Time Clock Alarm are
examples of these events. The operating system will program the wake sources before
shutdown. A transition from either source results in the mBMC starting the power-up sequence.
Since the processors are not executing, the BIOS does not participate in this sequence. The
hardware receives power good and reset from the mBMC and then transitions to an ON state.
4.9.2.3
On to Off (OS absent)
The SCI interrupt is masked. The firmware polls the power button status bit in the ACPI
hardware registers and sets the state of the machine in the chipset to the OFF state. The
mBMC monitors power state signals from the chipset and de-asserts PS_PWR_ON to the
power supply. As a safety mechanism, the mBMC automatically powers off the system in 4-5
seconds if the BIOS fails to service the request.
4.9.2.4
On to Off (OS present)
If an operating system is loaded, the power button generates a request (via SCI) to the OS to
shutdown the system. The OS retains control of the system and OS policy determines what
sleep state (if any) the system transitions into.
4.9.2.5
On to Sleep (ACPI)
If an operating system is loaded, the sleep button generates a request (via SCI) to the OS to
place the system in “sleep” mode. The OS retains control of the system and OS policy
determines what sleep state (if any) the system transitions into.
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System BIOS
4.9.2.6
Sleep to On (ACPI)
If an operating system is loaded, the sleep button generates a wake event to the ACPI chipset
and a request (via SCI) to the OS to place the system in the “On” state. The OS retains control
of the system and OS policy determines what sleep state (if any) and sleep sources the system
can wake from.
4.9.2.7
System Sleep States
The platform supports the following ACPI System Sleep States:
•
•
•
•
ACPI S0 (working) state
ACPI S1 (sleep) state
ACPI S4 (suspend to disk) state
ACPI S5 (soft-off) state
The platform supports the following wake up sources in an ACPI environment. As noted above,
the OS controls the enabling and disabling of these wake sources.
•
Devices that are connected to all USB ports, such as USB mice and keyboards can wake
the system up from the S1 sleep state.
•
•
•
PS/2 keyboards and mice can wake up the system from the S1 sleep state.
Both serial ports can be configured to wake up the system from the S1 sleep state.
PCI cards, such as LAN cards, can wake up the system from the S1 or S4 sleep state.
Note that the PCI card must have the necessary hardware for this to work.
•
As required by the ACPI Specification, the power button can always wake up the system
from the S1 or S4 state.
2.
Additionally, if an ACPI operating system is loaded, the following can cause the system to wake
up: the PME, RTC, or Wake-On-LAN.
Table 44: Supported Wake Events
Wake Event
Supported via ACPI (by sleep state)
Supported
Via Legacy
Wake
Power Button
Always wakes system.
Always
wakes
system
Ring indicate from Serial A
Ring indicate from Serial B
Wakes from S1 and S4.
Yes
Yes
Wakes from S1 and S4. If Serial-B (COM2) is used for
Emergency Management Port, Serial-B wakeup is
disabled.
PME from PCI cards
RTC Alarm
Mouse
Wakes from S1 and S4.
Wakes from S1. Always wakes the system up from S4.
Wakes from S1.
Yes
No
No
No
No
Keyboard
USB
Wakes from S1.
Wakes from S1.
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4.10 PXE BIOS Support
The BIOS will support PXE-compliant implementations that:
•
Locate and configure all PXE-capable boot devices (UNDI Option ROMs) in the system,
both built-in and add-ins.
•
•
Supply a PXE according to the specification if the system includes a built-in network device.
Meet the following specifications: System Management BIOS (SMBIOS) Reference
Specification v2.2 or later. The requirements defined in Sections 3 and 4 of the BIOS Boot
Specification (BBS) v1.01or later, to support network adapters as boot devices. Also,
supply a valid UUID and Wake-up Source value for the system via the SMBIOS structure
table.
4.11 Console Redirection
The BIOS supports redirection of both video and keyboard via a serial link (Serial A or Serial B).
When console redirection is enabled, the local (host server) keyboard input and video output
are passed both to the local keyboard and video connections, as well as to the remote console
via the serial link. Keyboard inputs from both sources are valid and video is displayed to both
outputs. As an option, the system can be operated without a keyboard or monitor attached to
the host system and can run entirely from the remote console. Setup and any other text-based
utilities can be accessed through console redirection.
The BIOS will take the Setup values for Serial console redirection and map them to the ACPI
SPCR tables. The BIOS setup tokens for serial console will also read the BMC serial console
values to sync up.
Text-based console redirection is also supported over the Serial Over LAN (SOL) protocol. SOL
is built on top of the IPMI-over-LAN infrastructure specified in the IPMI 2.0 specification. When
the SOL feature is activated by establishing a LAN connection to the BMC and activating the
SOL to be enabled, the EMP-based connectivity is disabled.
The IMM uses UDP datagrams to send SOL character data as “SOL Messages”. The “SOL
Messages” packet format follows that used for IPMI-over-LAN with extensions to support SOL
Messages as a new message type. SOL requires the support of the VT/UTF-8 character set
specified in the Microsoft* Windows.Net* headless requirements from Microsoft. The application
displaying SOL data must be VT/UTF-8 aware. The console sends keystrokes in a UDP packet
to the server.
If the session ID of SOL matches the session ID in boot block info, then the BIOS starts serial-
based redirection services. If the session IDs do not match, the BIOS follows the path specified
in the IPMI section and launches LAN or serial console redirection services.
BIOS Console redirection terminates before giving control to an operating system. The
operating system is responsible for continuing the Console Redirection after that point. BIOS
console redirection is a text-based console and any graphical data, such as a logo, is not
redirected.
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Platform Management
BIOS Console Redirection is intended to accomplish the implementation of VT-UTF8 console
redirection support in Intel® server BIOS products. That implementation will meet the functional
requirements set forth in the Microsoft Whistler WHQL requirements for headless operation of
servers, as well as maintain a necessary degree of backward compatibility with existing Intel
server BIOS products, and meet the architectural requirements of Intel server products currently
in development.
The server BIOS has a “console” that is intended to interact with a display and keyboard
combination. The BIOS instantiates sources and sinks of input/output data in the form of BIOS
Setup screens, Boot Manager screens, Power On Self Test (POST) informational messages
and hotkey/escape sequence action requests.
If the BIOS determines that console redirection is enabled, it will read the current baud rate and
pass this value to the appropriate management controller via the IPMB. Through the redirection
capabilities of the BMC on Intel® platforms, this serial port UART input/output stream is further
redirected and sent over a platform LAN device as a packetized serial-byte stream. This BMC
function is called Serial over LAN, or SOL, and further optimizes space requirements and server
management capability. SOL is only supported by the IMM.
5. Platform Management
The Platform Management sub-system on the Server Board SE7520JR2 consists of a micro-
controller, communication buses, sensors, system BIOS, and server management firmware. It
provides for three different levels of platform management: On-Board Platform Instrumentation
based around the National Semiconductor* PC87431M mini-Baseboard Management Controller
(mBMC), the Intel® Management Module Professional Edition, and the Intel® Management
Module Advanced Edition, which are based on Intel’s “Sahalee” BMC. As shipped, the
baseboard comes standard with On-Board Platform Instrumentation. A 120-pin connector on the
baseboard provides the interface to the optionally installed Intel Management Modules (IMM).
The following table summarizes the supported features for each management level:
Table 45: Suppoted Management Features by Tier
Intel®
Intel®
Management Management
On-Board
Platform
Instrumentation
Module -
Professional
Edition
Module -
Advanced
Edition
Element
IPMI Messaging, Commands, and Abstractions
Yes
Yes
Yes
Baseboard Management Controller (BMC)
Sensors
Yes
Yes
Yes
Limited
Limited
Limited
Yes
Yes
Yes
Sensor Data Records (SDRs) and SDR Repository
FRU Information
Yes
Yes
Yes
Yes
Autonomous Event Logging
Yes
Yes
System Event Log (SEL)
92 Entries
Limited
3276 Entries
Yes
3276 Entries
Yes
BMC Watchdog Timer, covering BIOS and run-time software
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Platform Management
Intel® Server Board SE7520JR2
Intel®
Intel®
Management Management
On-Board
Platform
Instrumentation
Limited
Module -
Professional
Edition
Module -
Advanced
Edition
Element
IPMI Channels, and Sessions
Yes
Yes
EMP (Emergency Management Port) - IPMI Messaging over
Serial/Modem. This feature is also referred to as DPC (Direct
Platform Control) over serial/modem.
No
No
Yes
Yes
Yes
Yes
Serial/Modem Paging
Serial/Modem Alerting over PPP using the Platform Event Trap
(PET) format
No
Yes
Yes
DPC (Direct Platform Control) - IPMI Messaging over LAN
(available via both on-board network controllers)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
LAN Alerting using PET
Platform Event Filtering (PEF)
ICMB (Intelligent Chassis Management Bus) - IPMI Messaging
between chassis
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
PCI SMBus support
No
Fault Resilient Booting
Limited
Errors Only
BIOS logging of POST progress and POST errors
Integration with BIOS console redirection via IPMI v2.0 Serial
Port Sharing
No
No
No
No
No
No
No
No
No
No
Yes
No
No
No
No
No
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Access via web browser
SNMP access
Telnet access
DNS support
DHCP support (dedicated NIC only)
Memory Sparing/Mirroring sensor support
Alerting via Email
Keyboard, Video, Mouse (KVM) redirection via LAN
High speed access to dedicated NIC
This chapter will provide an overview of the On-board Platform Instrumentation architecture and
details of it features and functionality including BIOS interactions and support. Refer to the
Technical Product Specification for the Professional and Advanced modules for detailed
description of their features and functionality.
Note: The generic term “BMC” may be used throughout this section when a feature and/or
function being described is common to both the mBMC and the Sahalee BMC. If a described
feature or function is unique, the specific management controller will be referenced.
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Platform Management
5.1 Platform Management Architecture Overview
CPU1
LM 93
ProcHot
VID_CPU0[5:0]
P1_VID[5:0]
P2_VID[5:0]
CPU2
VID_CPU1[5:0]
Not Used
ThermTrip
IERR
+12V1
+12V2
+12V3
FSB_Vtt
Chipset_Core
ICH_Core
P12V_CPU_SCALED
P12V_SCALED
P_VTT
P1V5
Not Used
P_VCCP0
P_VCCP1
Config
Check Logic
CPU1_Vccp
CPU2_Vccp
Zone 1
Zone2
PWM1
PWM2
P3V3
3.3V
P5V
P1V8_SCSI
+5V
SCSI_Core
Mem_Core
Mem_Vtt
DDR Core
DDR Vtt
Gb LAN Core
N12V_SCALED
GBIT _Core
-12V
CPU
Fan
CPU
Fan
Fan
Fan
Fan
Fan
P3V3_STBY
+3.3 S/B Vcc
SCSIA_TERMPWR
SCSIB_TERMPWR
PC87431
mBMC
SCSI_term1
SCSI_term2
Tach1
Tach2
CPU1 Thermal Diode
CPU2Thermal Diode
CPU_CFG_ERR_N
RTD (1)
RTD (2)
FP_ID_BTN_N
FP_RST_BTN
FP_PWR_BTN
FP_NMI_BTN
CPU1_SEL
CPU2_SEL
Tach3
Tach4
ICH_RST_BTN
ICH_PWR_BTN
FP_ID_LED_N
FP_SYS_FLT_LED_A
PC87427
SIO
FP_SYS_FLT_LED_C
SYS_NMI
SYS_SMI
SECURE_MODE_KB
FRB3_TMR_HALT_N
PS_PWR_GD
FANIN1
FANIN2
FANIN3
Mem
Fan
1 WIRE Bus
Temp
CHASSIS INTRUSION
SECURE_MODE_KB
PWR_LED
Chassis
Security
LED
Figure 19. On-Board Platform Management Architecture
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5.1.1
5V Standby
The power supply must provide a 5V Standby power source for the platform to provide any
management functionality. 5V Standby is a low power 5V supply that is active whenever the
system is plugged into AC power. 5V Standby is used by the following onboard management
devices:
•
Management Controller (BMC and/or mBMC) and associated RAM, Flash, and
SEEPROM which are used to monitor the various system power control sources
including the front panel Power Button, the baseboard RTC alarm signal, and power on
request messages from the auxiliary IPMB connector and PCI SMBus.
•
On-board NICs that support IPMI-over-LAN and LAN Alerting, Wake-On LAN, and Magic
Packet* operation.
•
•
•
•
•
•
Emergency management port
IPMB
PCI SMBus in addition to certain logic and private busses used for power control
ICMB Transceiver card (if present)
IPMB isolation circuit
System Status LED on the front panel
•
System Identify LED
5.1.2
IPMI Messaging, Commands, and Abstractions xxx
The IPMI specification defines a standardized, abstracted, message-based interface between
software and the platform management subsystem, and a common set of messages
(commands) for performing operations such as accessing temperature, voltage, and fan
sensors, setting thresholds, logging events, controlling a watchdog timer, etc.
IPMI also includes a set of records called Sensor Data Records (SDRs) that make the platform
management subsystem self-descriptive to system management software. The SDRs include
software information such as how many sensors are present, what type they are and what
events they generate. The SDRs also include information such as minimum and maximum
ranges, sensor type, accuracy and tolerance, etc., that guides software in interpreting and
presenting sensor data.
Together, IPMI Messaging and the SDRs provide a self-descriptive, abstracted platform
interface that allows management software to automatically configure itself to the number and
types of platform management features on the system. In turn, this enables one piece of
management software to be used on multiple systems. Since the same IPMI messages are
used over the serial/modem and LAN interfaces, a software stack designed for in-band (local)
management access can readily be re-used as an out-of-band remote management stack by
changing the underlying communications layer for IPMI messaging.
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5.1.3
IPMI ‘Sensor Model’
An IPMI-compatible ‘Sensor Model’ is used to unify the way that temperature, voltage, and other
platform management status and control is represented and accessed. The implementation of
this model is done according to command and data formats defined in the Intelligent Platform
Management Interface Specification.
The majority of monitored platform elements are accessed as logical ‘Sensors’ under this
model. This access is accomplished using an abstracted, message-based interface (IPMI
messages). Instead of having system software access the platform monitoring and control
hardware registers directly, it sends commands, such as the Get Sensor Reading command, for
sensor access. The message-based interface isolates software from the particular hardware
implementation.
System Management Software discovers the platform’s sensor capabilities by reading the
Sensor Data Records from a Sensor Data Record Repository managed by the management
controller. Sensor Data Records provide a list of the sensors, their characteristics, location,
type, and associated Sensor Number, for sensors in a particular system. The Sensor Data
Records also hold default threshold values (if the sensor has threshold based events), factors
for converting a sensor reading into the appropriate units (mV, rpm, degrees Celsius, etc.), and
information on the types of events that a sensor can generate.
Sensor Data Records also provide information on where Field Replaceable Unit (FRU)
information is located, and information to link sensors with the entity and/or FRU they’re
associated with.
Information in the SDRs is also used for configuring and restoring sensor thresholds and event
generation whenever the system powers up or is reset. This is accomplished via a process
called the ‘initialization agent’. The BMC reads the SDRs and based on bit settings, writes the
threshold data. Then it enables event generation for the various sensors it monitors and in
management controllers on the IPMB for systems based on the Standard or Advanced
management models.
System Management Software uses the data contained in the Sensor Data Record information
to locate sensors in order to poll them, interpret, and present their data readings, adjust
thresholds, interpret SEL entries, and alter event generation settings.
In Professional and Advanced management models, SDRs also provide a mechanism for
extending the baseboard management with additional chassis or OEM ‘value-added’ monitoring
and events. The baseboard monitoring can be extended by implementing an IPMI-compatible
management controller, connecting it to the IPMB, and adding new SDRs describing that
controller and its sensors to the SDR Repository. System Management Software can then read
the SDRs and use them to automatically incorporate the additional sensors.
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5.1.4
Private Management Busses
A ‘Private Management Bus’ is a single-master I2C bus that is controlled by the management
controller. Access to any of the devices on the Private Management Bus is accomplished
indirectly via commands to the management controller via the IPMB or system interfaces.
Private Management busses are a common mechanism used for accessing temperature
sensors, system processor information, and other baseboard monitoring devices that are
located in various locations in the system.
The devices on the Private Management Bus are isolated from traffic on the IPMB. Since
devices such as temperature sensors are polled by the management controller, this gets the
polling traffic off the ‘public’ IPMB bus. This also increases the reliability of access to the
information, since issues with IPMB bus arbitration and message retries are avoided.
Furthermore, placing managed I2C devices on the private management bus frees up the I2C
addresses that those devices would have used up on the IPMB.
5.1.5
Management Controllers
At the heart of platform management is a management controller. To support the tiered
management model, the Server Board SE7520JR2 supports two different management
controllers, the PC87431M mini-Baseboard Management Controller (mBMC) from National
Semiconductor* and Intel’s Sahalee BMC. The Professional and Advanced modules electrically
replace the mBMC with the more full featured ‘Sahalee’ microcontroller. Sahalee is a custom
ARM7-TDMI based microcontroller designed for baseboard management applications on Intel
Server baseboards.
The management controller is a microcontroller that provides the intelligence at the heart of the
Intelligent Platform Management architecture. The primary purpose of the management
controller is to autonomously monitor system ‘sensors’ for system platform management events,
such as over-temperature, out-of-range voltages, etc., and log their occurrence in the non-
volatile System Event Log (SEL). This includes events such as over-temperature and over-
voltage conditions, fan failures, etc. The management controller also provides the interface to
the sensors and SEL so System Management Software can poll and retrieve the present status
of the platform. The contents of the log can be retrieved ‘post mortem’ in order provide failure
analysis information to field service personnel. It is also accessible by System Management
Software, such as Intel Server Management (ISM), running under the OS.
The management controller includes the ability to generate a selectable action, such as a
system power-off or reset, when a match occurs to one of a configurable set of events. This
capability is called Platform Event Filtering, or PEF.
The management controller includes ‘recovery control’ functions that allow local or remote
software to request actions such as power on/off, power cycle, and system hard resets, plus an
IPMI Watchdog Timer that can be used by BIOS andr run-time management software as a way
to detect software hangs.
The management controller provides ‘out-of-band’ remote management interfaces providing
access to the platform health, event log, and recovery control features via LAN (all tiers). IMM
based systems also allow access via serial/modem, IPMB, PCI SMBus, and ICMB interfaces.
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These interfaces remain active on standby power, providing a mechanism where the SEL, SDR,
and recovery control features can be accessed even when the system is powered down.
Because the management controller operates independently from the main processor(s), the
management controller monitoring and logging functions, and the out-of-band interfaces can
remain operative even under failure conditions that cause the main processors, OS, or local
system software to stop.
The management controller also provides the interface to the non-volatile ‘Sensor Data Record
(SDR) Repository’. IPMI Sensor Data Records provide a set of information that system
management software can use to automatically configure itself for the number and type of IPMI
sensors (e.g. temperature sensors, voltage sensors, etc.) in the system. This information allows
management software to automatically adapt itself to the particular system, enabling the
development of management software that can work on multiple platforms without requiring the
software to be modified.
The following is a list of the major functions that are managed by either or both the mBMC and
Sahalee BMC.
•
•
Sensors and Sensor Polling
FRU Information Access. FRU (Field Replaceable Unit) information is non-volatile
storage for serial number, part number, asset tag and other inventory information for the
baseboard and chassis. The FRU implementation on SE7520JR2 includes write support
for OEM-specific records.
•
•
Autonomous Event Logging. The management controller autonomously polls baseboard
sensors and generates IPMI Platform Events, also called Event Messages, when an
event condition is detected. The events are automatically logged to the System Event
Log (SEL).
System Event Log (SEL). Non-volatile storage for platform health events. Events can be
autonomously logged by the BMC, or by sending Event Messages via the system
interface or IPMB to the BMC. This enables BIOS, software, and add-in cards to also log
events.
•
•
•
Sensor Data Record (SDR) Repository. Non-volatile storage holding records describing
the number and type of management sensors on the baseboard and in the chassis.
Includes write support for OEM-specific records and sensors.
SDR/SEL Timestamp Clock. A clock internally maintained by the management controller
that is used for time-stamping events and recording when SDR and SEL contents have
changed.
Intelligent Platform Management Bus (IPMB). The IPMB is a two-wire, multi-master
serial bus that provides a point for extending the baseboard management to include
chassis management features, and for enabling add-in cards to access the baseboard
management subsystem. (Professional and Advanced systems only.)
•
Watchdog Timer with selectable timeout actions (power off, power cycle, reset, or NMI)
and automatic logging of timeout event
•
•
•
Direct Platform Control (DPC) LAN Remote Management Connection
LAN Alerting via PET (Platform Event Trap) format SNMP trap
Serial/Modem Remote Management Connection (Professional and Advanced systems
only)
•
Serial/Modem Event Paging/Alerting (Professional and Advanced systems only)
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•
•
Platform Event Filtering (PEF)
Keyboard Controller Style (KCS) IPMI-System Interface (Professional and Advanced
systems only)
•
•
SMBus IPMI-System Interface (On-board Platform Instrumentation systems only)
Intelligent Chassis Management Bus (ICMB) support (Professional and Advanced
systems only)
•
•
•
•
•
•
•
•
•
Remote Boot Control
Local and Remote Power On/Off/Reset Control
Local and Remote Diagnostic Interrupt (NMI) Control
Fault-Resilient Booting
Control Panel LED Control
Platform Management Interrupt Routing (Professional and Advanced systems only)
Power Distribution Board (PDB) monitoring (Professional and Advanced systems only)
Updateable BMC Firmware
System Management Power Control (including providing Sleep/Wake and power push-
button interfaces)
•
•
•
Platform Event Filtering (PEF)
Baseboard Fan Speed Control and Failure Monitoring
Speaker ‘Beep’ Capability (used to indicate conditions such as FRB failure)
(Professional and Advanced systems only)
•
•
•
•
Baseboard FRU Information interface
Diagnostic Interrupt (Control Panel NMI) Handling
SMI/NMI status monitor (Professional and Advanced systems only)
System interface to the IPMB (via System Interface Ports) (Professional and Advanced
systems only)
•
System interface to the PCI SMBus (via System Interface Ports) (Professional and
Advanced systems only)
•
•
Secure Mode Control - front panel lock/unlock initiation.
IPMI v2.0 Management Controller Initialization Agent function (Professional and
Advanced systems only)
•
Emergency Management Port (EMP) Serial/Modem platform management interface
(Professional and Advanced systems only)
•
Dedicated Network Interface Controller (NIC) and full TCP/IP software stack (Advanced
systems only)
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5.2 On-Board Platform Management Features and Functionality
The National Semiconductor PC87431M mini-Baseboard Management Controller (mBMC) is an
Application Specific Integrated Circuit (ASIC) with a Reduced Instruction Set Computer (RISC)-
based processor and many peripheral devices embedded into it. It is targeted for a wide range
of remote-controlled platforms, such as servers, workstations, hubs, and printers.
The mBMC contains the logic needed for executing the firmware, controlling the system,
monitoring sensors, and communicating with other systems and devices via various external
interfaces.
The following figure illustrates the block diagram of the mBMC, as it is used in a server
management system. The external interface blocks to the mBMC are the discrete hardware
peripheral device interface modules shown as blocks outside of the mBMC ASIC.
Figure 20. mBMC in a Server Management System
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5.2.1
Server Management I2C Buses
The table below describes the server management I2C bus assignments and lists the devices
that are connected to the indicated bus. The column labeled “I2C Bus ID” represents the
physical I2C bus connected to the mBMC. Only the Peripheral SMBus is available for use with
the Write-Read I2C IPMI command.
Table 46: Server Management I2C Bus ID Assignments
I2C Bus ID
Bus Name
Host SMBus
Devices Connected
SMBus, PCI slots, ICH5, mBMC, DIMM FRU
1
2
4
SMLink, ICH5, mBMC, SIO 3, LM93, control panel, PDB,
Baseboard Temp Sensor, BMC FRU
Peripheral SMBus
Private Bus 4 – PB4
Network Interface Chipset
5.2.2
Power Control Interfaces
The mBMC is placed between the power button and the chipset so it can implement the Secure
Mode feature of disabling the power button, and add additional power control sources to the
system. In addition to the mandatory chassis controls, such as power–down and power-up, the
mBMC supports power cycle and pulse diagnostic interrupt.
The mBMC Chassis Control command supports the following power behavior.
•
Power down (0h – Chassis Control command): This option asserts a 4s override to the
chipset
•
Soft Shutdown (5h – Chassis Control command): This option generates a 200ms pulse of
the chipset power button
5.2.3
External Interface to the mBMC
The following figure shows the data/control flow to and within the functional modules of the
mBMC. External interfaces, namely the host system, Lan-On-Motherboard (LOM), and
peripherals interact with the mBMC through the corresponding interface modules.
Power supply control functions and control panel control functions are built into the mBMC. The
mBMC communicates with the internal modules using its private SMBus. External devices and
sensors interact with the mBMC using the peripheral SMBus. LOM communicates through the
LOM SMBus.
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Figure 21. External Interfaces to mBMC
5.3 mBMC Hardware Architecture
The following figure shows an example of the internal functional modules of the mBMC in a
block diagram. The mBMC controls various server management functions, such as the system
power/reset control, a variety of types of sensor monitoring, system initialization, fault resilient
booting (FRB).
The memory subsystem consists of flash memory to hold the mBMC operation code, firmware
update code, System Event Log (SEL), Sensor Data Record (SDR) repository, and mBMC
persistent data.
A private SMBus provides the mBMC with access to various sensors located in the server
system.
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Figure 22. mBMC Block Diagram
5.3.1
Power Supply Interface Signals
The mBMC supports two power supply control signals: Power On and Power Good. The Power
On signal connects to the chassis power subsystem through the chipset and is used to request
power state changes (asserted = request Power On). Power Good is a signal from the chassis
power subsystem indicating current power state (asserted = power is on).
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The following figure shows the power supply control signals and their sources. To turn on the
system, the mBMC asserts the Power On signal and waits for the Power Good signal to assert
in response, indicating that DC power is on.
Figure 23. Power Supply Control Signals
The mBMC uses the Power Good signal to monitor whether the power supply is on and
operational, and to confirm whether the actual system power state matches the intended system
on/off power state that was commanded with the Power On signal.
De-assertion of the Power Good signal generates an interrupt. The mBMC uses this to detect
either power subsystem failure or loss of AC power. If AC power is suddenly lost, the mBMC:
1. Immediately asserts a system reset.
2. Powers down the system.
3. Waits for configured system off time, then attempts to power the system back up,
depending on system power restore policy.
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5.3.2
Power Control Sources
The sources listed in the following table can initiate power-up and/or power-down activity.
Table 47: Power Control Initiators
External Signal Name or
Internal Subsystem
Front control power button
Source
Power button
Capabilities
Turns power on or off
mBMC Watchdog Timer
Platform Event Filtering
Command
Internal mBMC timer
Turns power off or power cycle
PEF
Turns power off or power cycle
Routed through command processor
Implemented via mBMC internal logic
Turns power on or off, or power cycle
Turns power on when AC power returns
Power state retention
5.3.3
Power-up Sequence
When turning on the system power after one of the event occurrences, the mBMC executes the
following procedure:
1. The mBMC asserts Power Supply (PS) Power On via the chipset and waits for the
power subsystem to assert Power Good. The system is reset.
2. The mBMC initializes all sensors to their Power On initialization states. The Init
Agent is run.
3. The mBMC attempts to boot the system by running the FRB algorithm, if FRB is
enabled.
5.3.4
Power-down Sequence
To power down the system, the mBMC effectively performs the sequence of power-up steps in
reverse order. It occur as follows:
1. The mBMC asserts system reset.
2. The mBMC de-asserts the Power On signal via the chipset.
3. The power subsystem turns off system power upon de-assertion of the Power On
signal.
5.3.5
System Reset Control
Reset Signal Output
5.3.5.1
The mBMC asserts the System Reset signal on the baseboard to perform a system reset. The
mBMC asserts the System Reset signal before powering the system up. After power is stable as
indicated by the power subsystem Power Good signal, the mBMC sets the processor enable
state as appropriate and de-asserts the System Reset signal, taking the system out of reset.
The system reset signal responds to the control panel or IPMI commands.
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5.3.5.2
Reset Control Sources
The following table shows the reset sources and the actions taken by the system.
Table 48: System Reset Sources and Actions
Reset Source
Standby power comes up
System Reset?
No (no DC power)
mBMC Reset
Yes
DC power comes up
Yes
No
No
No
No
No
No
No
No
Reset button or in-target probe (ITP) reset
Warm boot (DOS ctrl-alt-del, for example)
Command to reset the system
Set Processor State command
Watchdog timer configured for reset
FRB3 failure
Yes
Yes
Yes
Yes
Yes
Yes
PEF action
Optional
5.3.5.3
Control Panel System Reset
The reset button is a momentary contact button on the control panel. Its signal is routed through
the control panel connector to the mBMC, which monitors and de-bounces it. The signal must
be stable for at least 25 ms before a state change is recognized.
If Secure Mode is enabled or the button is forced protected, the reset button does not reset the
system. A Platform Security Violation Attempt event message is instead generated.
Control Panel User Interface
When an optional Intel® Management Module is not present, the mBMC acts as the control
panel controller2, processing signals from the control panel switches and LEDs.
When the flexible management connector is populated, the mBMC stops acting on the control
panel reset and power button inputs. This becomes the responsibility of the Intel® Management
Module.
The mBMC supports three control panel events.
•
•
Power button assertion
A low-level signal at PWBTIN indicates that the power button is being pressed. This
input is bridged to the PWBTOUT output if Control Panel Lockout is disabled. The
“Control Panel Power Button pressed” event is logged in the SEL.
Reset button assertion
A low-level signal at RSTIN indicates that the reset button is being pressed. This input is
bridged to the RSTOUT output if Control Panel Lockout is disabled. The “Control Panel
Reset Button pressed” event is logged in the SEL.
2
The Intel® Local Control Panel with LCD, is not supported with on-board platform management. Either an IMM
Professional Editaion or Advanced Edition must be installed to support this chassis option.
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•
Combined power and reset button assertion
If DC power is off, an assertion of the PWBTIN while the RSTIN is asserted generates
an OEM-specific Control Panel event to PEF. The event attributes are: Sensor Type
code - 14h (Button) and Sensor Specific offset - 07h. This PEF action initiates a BIOS
CMOS clear request to the system BIOS.
The user interface of the control panel consists of the following indicators:
•
•
•
Power LED
Fault/Status LED
Chassis ID LED
For user input, the standard control panel can provide the following buttons/switches:
•
•
•
•
•
Reset button
Power button
NMI/SDI button
Chassis ID button
Chassis intrusion switch (optional)
5.3.5.4
Control Panel Indicators
The mBMC is capable of supporting three control panel indicators: Power LED, Fault/Status
LED, and Chassis ID LED. The states of these indicators and how they relate to the
mBMC/chassis state are detailed below.
5.3.5.4.1
Power LED
The BIOS controls the control panel Power LED as described in the table below.
Table 49: SSI Power LED Operation
State
Power Mode
LED
Description
Power Off
Power On
Non-ACPI
Non-ACPI
OFF
ON
System power is off, and the BIOS has not initialized the chipset.
System power is on, but the BIOS has not yet initialized the chipset.
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5.3.5.4.2
Fault / Status LED
The following table shows mapping of sensors/faults to the LED state.
Table 50: Fault / Status LED
Color
Green
Condition
Solid
When
System ready
Blink
Solid
Blink
Solid
System ready, but degraded: CPU disabled
Critical failure: critical fan, voltage, or temperature state
Non-critical failure: non-critical fan, voltage, or temperature state
Amber
Off
System not ready: POST error / NMI event / CPU or terminator missing
Critical Condition - Any critical or non-recoverable threshold crossing associated with the
following events:
• Temperature, voltage, or fan critical threshold crossing
• Critical Event Logging errors, including System Memory Uncorrectable ECC errors and
FSB Bus errors,.
Non-Critical Condition
• Temperature, voltage, or fan non-critical threshold crossing
• Chassis intrusion
Degraded Condition
• One or more processors are disabled by Fault Resilient Boot (FRB)
5.3.5.4.3
Chassis ID LED
The Chassis ID LED provides a visual indication of a system being serviced. The state of the
Chassis ID LED is toggled by the chassis ID button or it can be controlled by the Chassis
Identify command.
Table 51: Chassis ID LED
Color
Blue
Condition
Off
When
Ok
Blink
Identify button pressed or Chassis Identify command executed
5.3.5.5
Control Panel Inputs
The mBMC monitors the control panel switches and other chassis signals. The control panel
input buttons are momentary contact switches, which are de-bounced by the mBMC processor
firmware. The de-bounce time is 25 ms.
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5.3.5.5.1
Chassis Intrusion
Some platforms support chassis intrusion detection. On those platforms, the mBMC monitors
chassis intrusion by polling the server input/output (SIO) device. The state of the chassis
intrusion input is provided by the status register of the SIO device. A Chassis Intrusion event is
logged in the System Event Log when a change in the input state is detected.
5.3.5.5.2
Power Button
The Power Button signal is used to toggle system power. The Power Button signal to the mBMC
is activated by a momentary contact switch on the control panel assembly.
The mBMC de-bounces the signal. After de-bouncing the signal, the mBMC routes it directly to
the chipset via the Power Button signal. If the chipset has been initialized by the BIOS, the
chipset responds to the assertion of the signal. It reacts to the press of the switch, not the
release of it.
If the system is in Secure Mode or if the Power Button is forced protected, then when the power
switch is pressed, a Platform Security Violation Attempt event message is generated. No power
control action is taken.
In the case of simultaneous button presses, the Power Button action takes priority over all other
buttons. Due to the routing of the de-bounced Power Button signal to the chipset, the power
signal action overrides the action of the other switch signals.
5.3.5.5.3
Reset Button
An assertion of the control panel Reset signal to the mBMC causes the mBMC to start the reset
and reboot process. This is immediate and without the cooperation of any software or operating
system running on the system.
The reset button is a momentary contact button on the control panel. Its signal is routed through
the control panel connector to the mBMC, which monitors and de-bounces it.
If Secure Mode is enabled or if the button is forced protected, the reset button does not reset
the system, but instead a Platform Security Violation Attempt event message is generated.
5.3.5.5.4
Diagnostic Interrupt Button (Control Panel NMI)
As stated in the IPMI 1.5 Specification, a diagnostic interrupt is a non-maskable interrupt or
signal for generating diagnostic traces and ‘core dumps’ from the operating system. The mBMC
generates NMIs and can be used for an OEM-specific diagnostic control panel interface.
The diagnostic interrupt button is connected to the mBMC through the control panel connector.
A diagnostic interrupt button press causes the mBMC to generate a SEL entry that will trigger
an NMI PEF OEM action. The event attributes are: Sensor Type code - 13h (Critical Interrupt)
and Sensor Specific offset - 0h.
5.3.5.5.5
Chassis Identify Button
The chassis identify button on the control panel toggles the state of the Chassis ID LED. If the
Chassis ID LED is off, pressing this button causes the LED to blink for 15 seconds. After this
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time, the LED will turn off. If the LED is on, a button press or IPMI Chassis Identify command
turns off the LED.
Upon assertion of the chassis identify button, a SEL event is generated by the chassis identity
sensor button. The event attributes are: Sensor Type code - 14h (Button) and Sensor Specific
offset - 1h.
5.3.6
Secure Mode Operation
The mBMC handles the secure mode feature, which allows the control panel power and reset
buttons to be protected against unauthorized use or access. Secure mode is a signal from the
keyboard controller and is asserted when the keyboard controller is in a locked state. Power
and reset buttons are locked and a security violation event is generated if these buttons are
pressed while secure mode is active.
Secure Mode state is cleared whenever the System is powered down, the Set Chassis
Capabilities command is issued to change the Secure Mode state, or the FP_LOCK signal is
de-asserted.
5.3.7
Baseboard Fan Control
Fan control is performed by two pulse width modulator (PWM) outputs on the LM93. The 3-pin
CPU fan headers (J5F2, J7F1) are not controlled. These operate at a constant speed. The
mBMC initializes the LM93 to control fan speeds based on temperature.
The LM93 controls the actual fan speeds based on temperature measurements according to a
built-in table. The table itself is loaded as part of the SDR package according to which system
configuration is used. In addition, BIOS passes in certain temperature data to the LM93 during
POST.
5.3.8
mBMC Peripheral SMBus
The mBMC implements a single private SMBus called the peripheral SMBus. The mBMC
supports master-only mode for this SMBus. External agents must use the mBMC’s Master
Write/Read I2C command if they require direct communication with a device on this bus.
5.3.9
Watchdog Timer
The mBMC implements a fully IPMI 1.5 compatible watchdog timer. See the IPMI 1.5
specification for details on watchdog timer configuration.
5.3.10
System Event Log (SEL)
The mBMC implements the logical System Event Log (SEL) device as specified in the Intelligent
Platform Management Interface Specification, Version 1.5. The SEL is accessible via all
channels. In this way, the SEL information can be accessed through out-of-band interfaces
while the system is down. The mBMC supports a maximum SEL size of 92 entries.
If an Intel® Management Module is installed in the server, the mBMC System Event Log is not
accessible and is replaced by the Intel Management Module System Event Log.
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5.3.10.1
SEL Erasure
It can take up to one minute to clear a System Event Log based upon other concurrent mBMC
operations.
5.3.10.2
Timestamp Clock
The mBMC maintains a four-byte internal timestamp clock used by the SEL and SDR
subsystems. This clock is incremented once per second and is read and set using the Get SEL
Time and Set SEL Time commands, respectively. The Get SDR Time command can also be
used to read the timestamp clock. These commands are specified in the Intelligent Platform
Management Interface Specification, Version 1.5.
The mBMC SEL timestamp is initialized by the BIOS prior to booting to the operating system
using the IPMI command Set SEL Time.
After a mBMC reset, the mBMC sets the initial value of the timestamp clock to 0x00000000. It is
incremented once per second after that. A SEL event containing a timestamp from 0x00000000
to 0x140000000 has a timestamp value that is relative to mBMC initialization.
During POST, the BIOS tells the mBMC the current real-time clock (RTC) time via the Set SEL
Time command. The mBMC maintains this time, incrementing it once per second, until the
mBMC is reset or until the time is changed via another Set SEL Time command.
System Management Software is responsible for keeping the mBMC and system time synchronized.
5.3.11
Sensor Data Record (SDR) Repository
The mBMC includes built-in Sensor Data Records (SDRs) that provide platform management
capabilities (sensor types, locations, event generation and access information). The SDR
Repository is stored in the non-volatile storage area (flash) of the mBMC. The SDR Repository
is accessible via all channels. This way, out-of-band interfaces can be used to access SDR
Repository information while the system is down. See Table 25 and Table 26 for additional
sensor support.
The mBMC supports 2176 bytes of storage for SDR records The SDR defines the type of
sensor, thresholds, hysteresis values and event configuration. The mBMC supports up to six
threshold values for threshold-based full sensor records, and up to 15 events for non threshold-
based full and compact sensor records. The mBMC supports both low-going and high-going sensor
devices.
If an Intel Management Module is installed in the server, the mBMC SDRs are not accessible
and are replaced by the Intel Management Module SDRs.
5.3.11.1
Initialization Agent
The mBMC implements the internal sensor initialization agent functionality specified in the
Intelligent Platform Management Interface Specification, Version 1.5. When the mBMC is
initialized, or a system is rebooted, the initialization agent scans the SDR repository and
configures the mBMC sensors referenced by the SDRs. This includes setting sensor thresholds,
enabling/disabling sensor event message scanning, and enabling/disabling sensor event
messages.
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5.3.12
Field Replaceable Unit (FRU) Inventory Devices
An enterprise-class system typically has FRU information for each major system board,
(processor board, memory board, I/O board, etc.). The FRU data includes information such as
serial number, part number, model, and asset tag. This information can be accessed in two
ways: through IPMI FRU commands or by using Master Write-Read commands.
The mBMC provides FRU device command access to its own FRU device. The mBMC
implements the interface for logical FRU inventory devices as specified in the Intelligent
Platform Management Interface Specification, Version 1.5. This functionality provides
commands used for accessing and managing the FRU inventory information associated with the
mBMC (FRU ID 0). These commands can be delivered over the Host and LAN channel
interfaces.
5.3.12.1
mBMC FRU Inventory Area Format
The mBMC FRU inventory area format follows the Platform Management FRU Information
Storage Definition. See the Platform Management FRU Information Storage Definition, Version
1.0 for details.
The mBMC provides only low-level access to the FRU inventory area storage. It does not
validate or interpret the data that is written. This includes the common header area. Applications
cannot relocate or resize any FRU inventory areas.
5.3.13
NMI Generation
The mBMC-generated NMI pulse duration is 200 ms. The following may cause the mBMC to
generate an NMI pulse:
•
•
Receiving a Chassis Control command issued from one of the command interfaces. Use of
this command will not cause an event to be logged in the SEL.
Detecting that the control panel Diagnostic Interrupt button has been pressed. Use of this
command will cause a button event to be logged into the SEL Type code - 13h (Critical
Interrupt), Sensor Specific offset – 6Fh
•
•
A PEF table entry matching an event where the filter entry has the NMI action indicated.
Watchdog timer pre-timeout expiration with NMI pre-timeout action enabled.
Once an NMI has been generated by the mBMC, the mBMC will not generate another until the
system has been reset or powered down.
5.3.14
SMI Generation
The mBMC can be configured to generate an SMI due to Watchdog timer pre-timeout expiration
with SMI pre-timeout interrupt specified.
5.3.15
Event Message Reception
The mBMC supports externally (e.g., BIOS) generated events via the Platform Event Message
command. Events received via this command will be logged to the SEL and processed by PEF.
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5.3.16
mBMC Self Test
The mBMC performs various tests as part of its initialization. If a failure is determined (e.g.,
corrupt mBMC FRU, SDR, or SEL), the mBMC stores the error internally.
5.3.17
Messaging Interfaces
This section describes the supported mBMC communication interfaces:
•
•
Host SMS Interface via SMBus interface
LAN interface using the LOM SMBus
These specifications are defined in the following subsections.
5.3.17.1
Channel Management
The mBMC supports two channels:
•
•
System interface
802.3 LAN
Table 52: Suported Channel Assignments
Channel ID
Media Type
802.3 LAN
System Interface
Interface
IPMB 1.0
IPMI-SMBus
Supports Sessions
Multi-sessions
Session-less
1
2
5.3.17.2
User Model
The mBMC supports one anonymous user (null user name) with a settable password. The IPMI
Set User Password command is supported.
5.3.17.3
Request/Response Protocol
All of the protocols used in the above mentioned interfaces are Request/Response protocols. A
Request Message is issued to an intelligent device, to which the device responds with a
Response Message.
As an example, with respect to the IPMB interface, both Request Messages and Response
Messages are transmitted on the bus using SMBus Master Write transfers. In other words, a
Request Message is issued from an intelligent device acting as an SMBus master, and is
received by an intelligent device as an SMBus slave. The corresponding Response Message is
issued from the responding intelligent device as an SMBus master, and is received by the
request originator as an SMBus slave.
5.3.17.4
Host to mBMC Communication Interface
The host communicates with the mBMC via the System Management Bus (SMBus). The
interface consists of three signals:
•
SMBus clock signal (SCLH)
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•
•
SMBus data signal (SDAH)
Optional SMBus alert signal (SMBAH). The signal notifies the host that the PC87431x has
data to provide.
When the system main power is off (PWRGD signal is low), the host interface signals are in
TRI-STATE to perform “passive” bus isolation between the mBMC SCLH, SDAH and SMBAH
signals and the SMBus controller signals. The passive bus isolation can be disabled by host
SMBus isolation control (offset 05h;) to support various system designs.
The mBMC is a slave device on the bus. The host interface is designed to support polled
operations. Host applications can optionally handle an SMBus alert interrupt, in case the mBMC
is unable to respond immediately to a host request. In this case, “Not Ready” is indicated in one
of two ways:
•
The host interface bandwidth is limited by the bus clock and mBMC latency. To meet the
device latency, the mBMC slows the bus periodically by extending the SMBus clock low
interval (SCLH). It is recommended to have a point-to-point connection between the host
and mBMC.
•
If the mBMC is in the middle of a LAN or peripheral device communication, or if a response
to the host request is not yet ready, the mBMC does not acknowledge the device address
(“NACK”). This forces the host software to stop and restart the session. The minimum
interval between two sessions should be 500 microseconds.
5.3.17.5
LAN Interface
The IPMI Specification v1.5 defines how IPMI messages, encapsulated in RMCP packet format,
can be sent to and from the mBMC. This capability allows a remote console application to
access the mBMC and perform the following operations:
•
Chassis Control, e.g., get chassis status, reset chassis, power-up chassis, power-down
chassis
•
•
•
•
•
•
•
Get system sensor status
Get and set system boot options
Get Field Replaceable Unit (FRU) information
Get System Event Log (SEL) entries
Get Sensor Data Records (SDR)
Set Platform Event Filtering (PEF)
Set LAN configurations
In addition, the mBMC supports LAN alerting in the form of SNMP traps that conform to the IPMI
Platform Event Trap (PET) format.
Table 53: LAN Channel Capacity
LAN Channel Capability
Number of Sessions
Options
1
1
Number of Users
User
Name NULL (anonymous)
Configurable
User Password
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LAN Channel Capability
Privilege Levels
Options
User, Operator, Administrator
None, Straight Password, MD5
1
Authentication Types
Number of LAN Alert Destinations
Address Resolution Protocol (ARP)
Gratuitous ARP
5.3.18
Event Filtering and Alerting
The mBMC implements most of the IPMI 1.5 alerting features. The following features are supported:
•
•
PEF
Alert over LAN
5.3.18.1
Platform Event Filtering (PEF)
The mBMC monitors platform health and logs failure events into the SEL. The Platform Event
Filtering (PEF) feature provides a configurable mechanism to allow events to trigger alert
actions. PEF provides a flexible, general mechanism that enables the mBMC to perform
selectable actions triggered by a configurable set of platform events. The mBMC supports the
following IPMI PEF actions:
•
•
•
•
•
•
Power-down
Soft-shutdown (pulse ACPI power button signal)
Power cycle
Reset
Diagnostic Interrupt
Alert
In addition, the mBMC supports the following OEM actions:
•
•
•
Fault LED action
Identification LED action
Device feedback (Generate specified transaction on peripheral SMBus, or change level of
DEIO pins)
The power-down, soft-shutdown, power cycle and reset actions can be delayed by a specified
number of 100ms up to the maximum PEF delay defined in the IPMI 1.5 specification.
The mBMC maintains an Event Filter table with 30 entries that are used to select which actions
to perform and one fixed/read-only Alert Policy Table entry. No alert strings are supported.
Note: All Fault/Status LED and ID LED behaviors are driven off of PEF. PEF should not be
disabled and the default entry configuration should not be modified or else those behaviors will
be changed.
Each time the PEF module receives an event message, either externally or internally generated,
it compares the event data against the entries in the Event Filter table. The mBMC scans all
entries in the table and determines a set of actions to be performed according to the entries that
were matched. Actions are then executed in order of priority. If there is a combination of power
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down, power cycle, and/or reset actions, the actions are performed according to PEF Action
Priorities.
Note: An action that has changed from delayed to non-delayed, or an action whose delay time
has been reduced automatically has higher priority. The mBMC can be configured to log PEF
actions as SEL events.
Table 54: PEF Action Priorities
Action
Power-Down
Priority
1
Delayed
Yes
Type
PEF Action
Note
Soft-shutdown
2
3
4
5
6
7
8
9
Yes
Yes
Yes
No
OEM PEF Action
Not executed if a power-down action was
also selected
Power cycle
PEF Action
Not executed if a power-down action was
also selected
Reset
PEF Action
Not executed if a power-down action was
also selected
Diagnostic Interrupt
PET Alert
PEF Action
Not executed if a power-down action was
also selected
No
PEF Action
When selected, always occurs immediately
after detection of a critical event.
Sensor feedback
IPMB message event
Fault LED action
No
OEM PEF Action
OEM PEF Action
OEM PEF Action
When selected, always occurs immediately
after detection of a critical event.
No
When selected, always occurs immediately
after detection of a critical event.
No
When selected, always occurs immediately
after detection of a critical event, and is
stopped after the de-assertion of all critical
events that requested LED blinking.
Identification LED action
10
No
OEM PEF Action
When selected, always occurs immediately
after detection of a critical event.
5.3.18.2
Alert over LAN
LAN alerts are sent as SNMP traps in ASF formatted Platform Event Traps (PET) to a specified
alert destination. The Alert over LAN feature is used to send either PET alerts or directed events
to a remote system management application, regardless of the state of the host’s operating
system.
LAN alerts may be sent over any of the LAN channels supported by a platform. LAN alerts can
be used by PEF to send out alerts to selected destination whenever an event matches an event
filter table entry. For more information on LAN alerts, see the IPMI specifications v1.5
5.3.19
mBMC Sensor Support
The following tables are for the built-in and the external sensors for the platform. There is a
management controller locator record as a built-in SDR besides the given below.
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mBMC sensors 01h – 08h are internal sensors to the mBMC and are used for event generation
only. These sensors are not for use with the ‘Get Sensor Reading’ IPMI command and may
return an error when read.
Table 55: Platform Sensors for On-Board Platform Instrumentation
Event /
Reading
Type
Readable
Value /
Offsets
Event Offset
Triggers
Assert /
Deassert
Sensor Name
Sensor Type
EventData
Sensor
Physical
Security
05h
Physical Security
Violation
LAN Leash
Lost
01
02
Specific LAN Leash Lost
6Fh
As
As
Trig Offset
Trig Offset
Platform
Security
Violation
Attempt
06h
Sensor
Out-of-band
access password
violation
Platform Security
Violation
Pecific
6Fh
–
Power On/Off
Power cycle
AC Lost
Sensor
Specific
6Fh
Power Unit
09h
Power Unit Status
Button
03
As
As
–
–
Trig Offset
Trig Offset
Sensor
Specific
6Fh
Power Button
Reset Button
Button
14h
04h
Timer Expired
Sensor Hard Reset
Specific Power Down
Watchdog2
23h
Watchdog
05h
06h
As
As
–
–
Trig Offset
Trig Offset
6Fh
Power cycle
Timer Interrupt
Initiated by power
up
System boot
Initiated
Sensor
Specific
6Fh
Initiated by hard
reset
System Boot
1Dh
Initiated by warm
reset
Sensor
System Event
12h
System PEF Event 07h
Specific PEF Action
As
As
–
–
Trig Offset
Trig Offset
6Fh
Sensor
Platform Alert
24h
Platform Event
Trap generated
Platform Allert
08h
Specific
6Fh
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Event /
Reading
Type
SDR
Record
Type
Sensor
Type
Event Offset
Triggers
Assert /
Deassert Value/Offsets
Readable
PEF
Action
Sensor Name
Event Data
Physical
Security
05h
Sensor
Specific
6Fh
General
Chassis
Intrusion
General
Chassis
Intrusion
Physical Security
Violation
0Ah
As & De
Trig Offset
X
02
Voltage
02h
Threshold
01h
Fault LED
Action
CPU1 12v
CPU2 12v
BB +1.5V
BB +1.8V
BB +3.3V
BB +5V
0Bh
0Ch
0Dh
0Eh
0Fh
10h
11h
12h
13h
14h
[u,l][c,nc]
[u,l][c,nc]
[u,l][c,nc]
[u,l][c,nc]
[u,l][ c,nc]
[u,l][ c,nc]
[u,l][ c,nc]
[u,l][ c,nc]
[u,l][ c,nc]
[u,l][ c,nc]
As & De
As & De
As & De
As & De
As & De
As & De
As & De
As & De
As & De
As & De
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
R, T
R, T
R, T
R, T
R, T
R, T
R, T
R, T
R, T
R, T
01
01
01
01
01
01
01
01
01
01
Voltage
02h
Threshold
01h
Fault LED
Action
Voltage
02h
Threshold
01h
Fault LED
Action
Voltage
02h
Threshold
01h
Fault LED
Action
Voltage
02h
Threshold
01h
Fault LED
Action
Voltage
02h
Threshold
01h
Fault LED
Action
Voltage
02h
Threshold
01h
Fault LED
Action
BB +12V
BB -12V
FSB Vtt
Voltage
02h
Threshold
01h
Fault LED
Action
Voltage
02h
Threshold
01h
Fault LED
Action
Voltage
02h
Threshold
01h
Fault LED
Action
MCH Vtt
Voltage
02h
Threshold
01h
Fault LED
Action
SCSI Core(1.8v)
STBY +3.3V
15h
16h
[u,l][ c,nc]
[u,l][c,nc]
As & De
As & De
Analog
Analog
R, T
R, T
01
01
Voltage
02h
Threshold
01h
Fault LED
Action
Voltage
02h
Threshold
01h
Fault LED
Action
Proc1 VCCP
Proc2 VCCP
Tach Fan 1
Tach Fan 2
Tach Fan 3
Tach Fan 4
Tach Fan 5
19h
1Ah
1Bh
1Ch
1Dh
1Eh
1Fh
[u,l][ c,nc]
[u,l][ c,nc]
[u,l][ c,nc]
[u,l][ c,nc]
[u,l][ c,nc]
[u,l][ c,nc]
[u,l][ c,nc]
As & De
As & De
As & De
As & De
As & De
As & De
As & De
Analog
Analog
Analog
Analog
Analog
Analog
Analog
R, T
R, T
R, T
R, T
R, T
R, T
R, T
01
01
01
01
01
01
01
Voltage
02h
Threshold
01h
Fault LED
Action
Fan
04h
Threshold
01h
Fault LED
Action
Fan
04h
Threshold
01h
Fault LED
Action
Fan
04h
Threshold
01h
Fault LED
Action
Fan
04h
Threshold
01h
Fault LED
Action
Fan
04h
Threshold
01h
Fault LED
Action
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Event /
Reading
Type
SDR
Record
Type
Sensor
Type
Event Offset
Triggers
Assert /
Deassert Value/Offsets
Readable
PEF
Action
Sensor Name
Event Data
Fan
04h
Threshold
01h
Fault LED
Action
Tach Fan 6
Tach Fan 7
Tach Fan 8
Tach Fan 9
20h
21h
22h
23h
[u,l][ c,nc]
[u,l][ c,nc]
[u,l][ c,nc]
[u,l][ c,nc]
As & De
As & De
As & De
As & De
Analog
Analog
Analog
Analog
R, T
R, T
R, T
R, T
01
01
01
01
Fan
04h
Threshold
01h
Fault LED
Action
Fan
04h
Threshold
01h
Fault LED
Action
Fan
04h
Threshold
01h
Fault LED
Action
Sensor
Specific
6Fh
Processor
07h
Proc1 IERR
24h
25h
26h
27h
IERR
As
As
As
As
–
–
–
–
Trig Offset
Trig Offset
Trig Offset
Trig Offset
–
–
02
02
02
02
Sensor
Specific
6Fh
Processor
07h
Proc2 IERR
IERR
Sensor
Specific
6Fh
Processor
07h
Fault LED
Action
Proc1 Thermal trip
Proc2 Thermal trip
Thermal Trip
Thermal Trip
Sensor
Specific
6Fh
Processor
07h
Fault LED
Action
Temp
01h
Threshold
01h
Fault LED
Action
Proc1 Throttle
Proc2 Throttle
28h
29h
[u,l][ c,nc]
[u,l][ c,nc]
As & De
As & De
Analog
Analog
Trig Offset
Trig Offset
01
01
Temp
01h
Threshold
01h
Fault LED
Action
Critical
Interrupt
13h
Sensor
Specific
6Fh
Diagnostic Interrupt
Button
2Ah
2Bh
FP NMI Button
As
–
–
Trig Offset NMI Pulse
02
02
Sate
Deasserted
ID LED
Trig Offset
Chassis Identify
Button
Button
14h
Generic
03h
As & De
Action
State Assert
[u,l][ c,nc]
Fan
04h
Threshold
01h
Fault LED
Action
Proc1 Fan
2Ch
2Dh
2Eh
2Fh
As & De
As & De
As & De
As & De
Analog
Analog
Analog
Analog
R, T
01
01
01
01
Fan
04h
Threshold
01h
Fault LED
Action
Proc2 Fan
[u,l][ c,nc]
[u,l][ c,nc]
[u,l][ c,nc]
R, T
Temp
01h
Threshold
01h
Fault LED
Action
Proc1 Core temp
Proc2 Core temp
R, T
Temp
01h
Threshold
01h
Fault LED
Action
R, T
CPU Configuration
Error
Processor
07h
Generic
03h
Fault LED
Action
30h
-
State Asserted
N/A
As & De
N/A
Discrete
N/A
R, T
02
OEM Type
53h
OEM Type 53h
N/A
N/A
N/A
N/A
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5.3.20
IMM BMC Sensor Support
The following tables are for the built-in and the external sensors for the platform when either an
Intel Management Module Professional or Advanced is installed.
Table 56. Platform Sensors for Intel Management Modules - Professional and Advanced
Event /
Reading
Type
Readable
Value /
Offsets
Sensor
Number
Event Offset
Triggers
Assert /
Deassert
Sensor Name
Sensor Type
EventData
Power Off
Power Cycle
A/C Lost
Sensor
Specific
6Fh
Power Unit
09h
Power Unit Status 01h
As
–
Trig Offset
A
X
Soft Power
Control Fault
Power Unit Failure
Predictive Failure
Redundancy
Regained
Redundancy lost
Redundancy
Degraded
Non-red:Suff res
from redund
Power Unit
02h
Power Unit
09h
Generic
0Bh
Non-red:Suff res
from insuff res
As
–
Trig Offset
A
X
Redundancy
Non-red:Insuff res
Redundancy
Degraded from full
redundancy
Redundancy
Degraded from
non-redundant
Timer Expired
Hard Reset
Sensor
Specific
6Fh
Watchdog2
23h
Watchdog
03h
04h
Power Down
Power Cycle
Timer Interrupt
As & De
–
–
Trig Offset
Trig Offset
A
A
X
X
Secure mode
violation attempt
Platform Security Sensor
Violation Attempt Specific
Platform Security
Violation
As
Out-of-band
access password
violation
06h
6Fh
General
Chassis
Intrusion
General Chassis
Intrusion
Sensor
Specific
6Fh
Physical Security
Violation
Physical Security
05h
05h
06h
As & De
As
Trig Offset
A
A
X
–
LAN Leash Lost
LAN Leash
Lost
Sensor
Specific
6Fh
POST error
0Fh
POST Error
POST error
–
POST Code
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Event /
Reading
Type
Readable
Value /
Event Offset
Triggers
Assert /
Deassert
Sensor Name
Sensor Type
EventData
Number
Offsets
Sensor
Specific
6Fh
Front Panel NMI
Bus Error
Critical Inerrupt
Sensor
Critical Interrupt
13h
07h
As & De
As
–
Trig Offset
Trig Offset
A
A
–
–
Sensor
Specific
6Fh
Memory
0Ch
Uncorrectable
ECC
Memory
08h
09h
–
–
Correctable
Memory Error
Event Logging
Disabled
10h
Sensor
Specific
6Fh
Event Logging
Disabled
Logging Disabled
As
As
Trig Offset
A
X
X
Log Area
Reset/Cleared
Session Activation
Sensor
Specific
6Fh
Session Audit
2Ah
As defined
by IPMI
Session Audit
BB +1.2V Vtt
0Ah
–
A
Session
Deactivation
Voltage
02h
Threshold
01h
10h
11h
12h
13h
[u,l][nr,c,nc]
[u,l][ nr,c,nc]
[u,l][ nr,c,nc]
[u,l][ nr,c,nc]
As & De
As & De
As & De
As & De
Analog
Analog
Analog
Analog
R, T
R, T
R, T
R, T
A
A
A
A
–
X
–
–
BB+1.2V
NIC Core
Voltage
02h
Threshold
01h
Voltage
02h
Threshold
01h
BB +1.5V
BB +1.8V
Voltage
02h
Threshold
01h
SCSI Core
BB +2.5V Memory
Voltage
Voltage
02h
Threshold
01h
14h
15h
[u,l][ nr,c,nc]
[u,l][ nr,c,nc]
[u,l][nr,c,nc]
[u,l][nr,c,nc]
[u,l][nr,c,nc]
[u,l][nr,c,nc]
[u,l][nr,c,nc]
[u,l][nr,c,nc]
As & De
As & De
As & De
As & De
As & De
As & De
As & De
As & De
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
R, T
R, T
R, T
R, T
R, T
R, T
R, T
R, T
A
A
A
A
A
A
A
A
–
–
X
X
–
X
–
–
Voltage
02h
Threshold
01h
BB +3.3V
Voltage
02h
Threshold
01h
BB +3.3V Standby 16h
Voltage
02h
Threshold
01h
BB +3.3V AUX
BB +5V
17h
18h
19h
1Ah
1Bh
Voltage
02h
Threshold
01h
Voltage
02h
Threshold
01h
BB +5V Standby
BB +12V
Voltage
02h
Threshold
01h
Voltage
02h
Threshold
01h
BB -12V
Limit Not
Exceeded
Digital
Discrete
05h
Voltage
02h
BB Vbat
1Ch
30h
As & De
–
R, T
A
X
Limit Exceeded
Temp
01h
Threshold
01h
BB Temp
[u,l][nr,c,nc]
As & De
As & De
As & De
Analog
Analog
Analog
R, T
R, T
R, T
A
A
A
X
X
–
Temp
01h
Threshold
01h
Front Panel Temp 32h
[u,l][nr,c,nc]
[u,l][nr,c,nc]
Drive Backplane
Temp
Temp
01h
Threshold
01h
35h
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Platform Management
Sensor
Intel® Server Board SE7520JR2
Readable
Event /
Reading
Type
Event Offset
Triggers
Assert /
Sensor Name
Sensor Type
Value /
Offsets
EventData
Number
Deassert
Fan
04h
Threshold
01h
Tach Fan 1
Tach Fan 2
Tach Fan 3
Tach Fan 4
Tach Fan 5
Tach Fan 6
Tach Fan 7
Tach Fan 8
Tach Fan 9
Tach Fan 10
Tach Fan 11
40h
41h
42h
43h
44h
45h
46h
47h
48h
49h
4Ah
[u,l][nr,c,nc]
[u,l][nr,c,nc]
[u,l][nr,c,nc]
[u,l][nr,c,nc]
[u,l][nr,c,nc]
[u,l][nr,c,nc]
[u,l][nr,c,nc]
[u,l][nr,c,nc]
[u,l][nr,c,nc]
[u,l][nr,c,nc]
[u,l][nr,c,nc]
As & De
As & De
As & De
As & De
As & De
As & De
As & De
As & De
As & De
As & De
As & De
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
R, T
M
M
M
M
M
M
M
M
M
M
M
–
–
–
–
–
–
–
–
–
–
–
Fan
04h
Threshold
01h
R, T
R, T
R, T
R, T
R, T
R, T
R, T
R, T
R, T
R, T
Fan
04h
Threshold
01h
Fan
04h
Threshold
01h
Fan
04h
Threshold
01h
Fan
04h
Threshold
01h
Fan
04h
Threshold
01h
Fan
04h
Threshold
01h
Fan
04h
Threshold
01h
Fan
04h
Threshold
01h
Fan
04h
Threshold
01h
Digital
Discrete
06h
Fan
04h
Performance Met
or Lags
Digital Fan 1
Digital Fan 2
Digital Fan 3
Digital Fan 4
Digital Fan 5
Digital Fan 6
Digital Fan 7
Digital Fan 8
Digital Fan 9
50h
51h
52h
53h
54h
55h
56h
57h
58h
As & De
As & De
As & De
As & De
As & De
As & De
As & De
As & De
As & De
–
–
–
–
–
–
–
–
–
Trig Offset
Trig Offset
Trig Offset
Trig Offset
Trig Offset
Trig Offset
Trig Offset
Trig Offset
Trig Offset
M
M
M
M
M
M
M
M
M
–
–
–
–
–
–
–
–
–
Digital
Discrete
06h
Fan
04h
Performance Met
or Lags
Digital
Discrete
06h
Fan
04h
Performance Met
or Lags
Digital
Discrete
06h
Fan
04h
Performance Met
or Lags
Digital
Discrete
06h
Fan
04h
Performance Met
or Lags
Digital
Discrete
06h
Fan
04h
Performance Met
or Lags
Digital
Discrete
06h
Fan
04h
Performance Met
or Lags
Digital
Discrete
06h
Fan
04h
Performance Met
or Lags
Digital
Discrete
06h
Fan
04h
Performance Met
or Lags
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Intel® Server Board SE7520JR2
Sensor
Platform Management
Event /
Reading
Type
Readable
Value /
Event Offset
Triggers
Assert /
Deassert
Sensor Name
Sensor Type
EventData
Number
Offsets
Digital
Discrete
06h
Fan
04h
Performance Met
or Lags
Digital Fan 10
Digital Fan 11
59h
As & De
As & De
As
–
Trig Offset
Trig Offset
Trig Offset
Trig Offset
M
M
A
–
–
–
–
Digital
Discrete
06h
Fan
04h
Performance Met
or Lags
5Ah
60h
61h
–
–
–
LVDS SCSI
channel 1
terminator fault
Digital
Discrete
06h
Terminator
1Ch
Performance Met
or Lags
LVDS SCSI
channel 2
terminator fault
Digital
Discrete
06h
Performance Met
or Lags
Terminator
1Ch
As
A
Presence
Failure
Sensor
Specific
6Fh
Power Supply
Status 1
Power Supply
08h
70h
71h
As & De
As & De
–
–
Trig Offset
Trig Offset
A
A
X
X
Predictive Fail
A/C Lost
Presence
Failure
Power Supply
Status 2
Sensor
Specific
6Fh
Power Supply
08h
Predictive Fail
A/C Lost
(SR2400)
Power Nozzle
Power Supply 1
Power Nozzle
Power Supply 2
Current
03h
Threshold
01h
78h
79h
[u,l][ nr,c,nc]
[u,l][ nr,c,nc]
As & De
As & De
Analog
Analog
R, T
R, T
A
A
–
–
Current
03h
Threshold
01h
Power Gauge
V1 rail (+12v)
Current
03h
Threshold
01h
7Ah
7Bh
7Ch
7Dh
[u,l][ nr,c,nc]
[u,l][ nr,c,nc]
[u,l][ nr,c,nc]
[u,l][ nr,c,nc]
As & De
As & De
As & De
Analog
Analog
Analog
R, T
R, T
R, T
A
A
A
–
–
–
Power Supply 1
Power Gauge
V1 rail (+12v)
Current
03h
Threshold
01h
Power Supply 2
Power Gauge
(aggregate power)
Other Units
0Bh
Threshold
01h
Power Supply 1
Power Gauge
(aggregate power)
Other Units
0Bh
Threshold
01h
As & De
As
Analog
–
R, T
A
A
–
–
Power Supply 2
Digital
Discrete
03h
State Asserted
Module / Board
15h
Processor Missing 80h
Trig Offset
State Deasserted
S0 / G0
S1
System ACPI
Power State
22h
Sensor
Specific
6Fh
System ACPI
82h
S4
As
–
Trig Offset
A
X
Power State
S5 / G2
G3 Mechanical Off
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Platform Management
Sensor
Intel® Server Board SE7520JR2
Readable
Event /
Reading
Type
Event Offset
Triggers
Assert /
Sensor Name
Sensor Type
Value /
Offsets
EventData
Number
Deassert
OEM System Boot
Event (Hard
Reset)
Sensor
Specific
6Fh
System Event
12h
System Event
83h
As
–
Trig Offset
A
–
PEF Action
Power Button
Sleep Button
Reset Button
Sensor
Specific
6Fh
Button
14h
Button
84h
85h
As
As
–
–
Trig Offset
Trig Offset
A
A
X
–
Digital
Discrete
03h
State Asserted
SMI Timeout
F3h
SMI Timeout
State Deasserted
I2C device not
found
OEM
Sensor Failure
F6h
Sensor
Specific
73h
Sensor Failure
86h
I2C device error
detected
As
–
Trig Offset
A
X
I2C Bus Timeout
Digital
Discrete
03h
State Asserted
OEM
C0h
NMI Signal State
SMI Signal State
87h
88h
–
–
–
–
–
–
–
–
–
–
State Deasserted
Digital
Discrete
03h
State Asserted
OEM
C0h
State Deasserted
Fully Redundant
Non-red:Suff res
from redund
DIMM Sparing
Redundancy
Availability Status Discrete
89h
8Ah
8Bh
8Ch
As
As
As
As
–
–
–
–
Trig Offset
Trig Offset
Trig Offset
Trig Offset
A
A
A
A
–
–
–
–
0Bh
0Bh
Non-red:Suff res
from insuff res
Non-red:Insuff res
Sensor
Specific
6Fh
DIMM Sparing
Enabled
Entity Presence
25h
Entity Present
Fully Redundant
Non-red:Suff res
from redund
Memory Mirroring
Redundancy
Availability Status Discrete
0Bh
0Bh
Non-red:Suff res
from insuff res
Non-red:Insuff res
Sensor
Specific
6Fh
Memory Mirroring
Enabled
Entity Presence
25h
Entity Present
IERR
Thermal Trip
FRB1, FRB2,
FRB3
Sensor
Specific
6Fh
Processor 1
Status
Processor
07h
90h
As & De
–
Trig Offset
M
X
Config Error
Presence
Disabled
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Sensor
Platform Management
Event /
Reading
Type
Readable
Value /
Event Offset
Triggers
Assert /
Deassert
Sensor Name
Sensor Type
EventData
Number
Offsets
IERR
Thermal Trip
FRB1, FRB2,
FRB3
Sensor
Specific
6Fh
Processor 2
Status
Processor
07h
91h
As & De
–
Trig Offset
M
X
Config Error
Presence
Disabled
Processor 1 Core
Temp
Temp
01h
Threshold
01h
98h
99h
B8h
B9h
[u,l][nr,c,nc]
[u,l][nr,c,nc]
[u,l][ nr,c,nc]
[u,l][ nr,c,nc]
As & De
As & De
As & De
As & De
Analog
Analog
Analog
Analog
R, T
R, T
R, T
R, T
A
A
–
–
–
–
Processor 2 Core
Temp
Temp
01h
Threshold
01h
Processor 1 12v
VRM
Voltage
02h
Threshold
01h
A
Processor 2 12v
VRM
Voltage
02h
Threshold
01h
A
Digital
Discrete
07h
Transitioned to
Non-Critical from
OK
Processor 1
Thermal Control
Temp
01h
C0h
C1h
C8h
C9h
As & De
As & De
As & De
As & De
–
–
–
–
Trig Offset
Trig Offset
Trig Offset
Trig Offset
M
–
–
–
–
Digital
Discrete
07h
Transitioned to
Non-Critical from
OK
Processor 2
Thermal Control
Temp
01h
M
M
M
Digital
Discrete
07h
Transitioned to
Non-Critical from
OK
Processor 1 VRD
Over Temp
Temp
01h
Digital
Discrete
07h
Transitioned to
Non-Critical from
OK
Processor 2 VRD
Over Temp
Temp
01h
Voltage
02h
Threshold
01h
Processor 1 Vcc
Processor 2 Vcc
D0h
D1h
[u,l][ nr,c,nc]
[u,l][ nr,c,nc]
As & De
As & De
Analog
Analog
R, T
R, T
A
A
–
–
Voltage
02h
Threshold
01h
CPU Configuration
Error
Processor
07h
Generic
03h
D8h
E0h
State Asserted
As & De
As
Discrete
–
R, T
A
A
-
Fault Status
Asserted
Sensor
Specific
6Fh
Slot Connector
21h
DIMM 1
DIMM 2
DIMM 3
Trig Offset
–
Device Installed
Disabled
Fault Status
Asserted
Sensor
Specific
6Fh
Slot Connector
21h
E1h
E2h
As
As
–
–
Trig Offset
Trig Offset
A
A
–
–
Device Installed
Disabled
Fault Status
Asserted
Sensor
Specific
6Fh
Slot Connector
21h
Device Installed
Disabled
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Platform Management
Sensor
Intel® Server Board SE7520JR2
Readable
Event /
Reading
Type
Event Offset
Triggers
Assert /
Sensor Name
Sensor Type
Value /
Offsets
EventData
Number
Deassert
Fault Status
Asserted
Sensor
Specific
6Fh
Slot Connector
21h
DIMM 4
DIMM 5
DIMM 6
E3h
As
As
As
–
–
–
Trig Offset
A
A
A
–
–
–
Device Installed
Disabled
Fault Status
Asserted
Sensor
Specific
6Fh
Slot Connector
21h
E4h
E5h
Trig Offset
Trig Offset
Device Installed
Disabled
Fault Status
Asserted
Sensor
Specific
6Fh
Slot Connector
21h
Device Installed
Disabled
5.4 Wired For Management (WFM)
Wired for Management (WMF) is an industry-wide initiative that increases the overall
manageability and reduces the total cost of ownership. WFM allows a server to be managed
over a network. The system BIOS supports the SMBIOS to help higher-level instrumentation
software meet the WFM requirements. Higher-level software can use the information provided
by SMBIOS to instrument the desktop management interface (DMI) that are specified in the
WFM specification.
5.5 Vital Product Data (VPD)
Vital Product Data (VDP) is product-specific data used for product and product component
identification. It is stored in non-volatile memory and preserved through power cycles. The VPD
contains information such as Product Serial Number, Product Model Number, Manufacturer
Identification, etc.
The VPD is programmed during manufacturing. A user can update certain user-specific VPD
information by using the Flash Update utility. The BIOS uses this data and displays it in
SMBIOS structures and in BIOS Setup.
5.6 System Management BIOS (SMBIOS)
The BIOS provides support for the SMBIOS specification to create a standardized interface for
manageable attributes that are expected to be supported by DMI-enabled computer systems.
The BIOS provides this interface via data structures through which the system attributes are
reported. Using SMBIOS, a system administrator can obtain the types, capabilities, operational
status, installation date and other information about the system components.
Refer to the SE7520JR2 BIOS EPS for detail describing access methods to the SMBIOS
structure tables.
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Error Reporting and Handling
6. Error Reporting and Handling
This section defines how errors are handled. Also discussed is the role of the BIOS in error
handling and the interaction between the BIOS, platform hardware, and server management
firmware with regard to error handling. In addition, error-logging techniques are described and
beep codes and POST messages are defined.
Note: The generic term “BMC” may be used throughout this secton when a feature and/or
function being described is common to both the mBMC and the Sahalee BMC. If a described
feature or function is unique, the specific management controller will be referenced.
6.1 Fault Resilient Booting (FRB)
Fault Resilient Booting (FRB) is a set of BIOS and BMC algorithms and hardware support that
allow a multiprocessor system to boot in case of failure of the bootstrap processor (BSP) under
certain conditions. FRB functionality will differ depending on whether standard onboard
platform instrumentation is used (mBMC) or whether an Intel Management Module is used.
With on-board platform instrumentation, should a processor failure be detected during POST,
the mBMC does not have the ability to disable the failed or failing processor. Therefore the
system may or may not continue to boot. A FRB-2 error will be generated to the System Event
Log (SEL) and an error will be displayed at POST. FRB2 is a BIOS-based algorithm that uses
the mBMC IPMI watchdog timer to protect against BIOS hangs during the POST process
On systems that have an Intel Management Module installed, several different levels of FRB are
supported: FRB1, FRB2, FRB3, and OS Watchdog Timer. The FRB algorithms detect BSP
failures and take steps to disable that processor and reset the system so another processor will
run as the BSP.
6.1.1
FRB1 – BSP Self-Test Failures
The BIOS provides an FRB1 timer. Early in POST, the BIOS checks the Built-in Self Test
(BIST) results of the BSP. If the BSP fails BIST, the BIOS requests the Sahalee BMC to disable
the BSP. The Sahalee BMC disables the BSP, selects a new BSP and generates a system
reset. If there is no alternate processor available, the Sahalee BMC generates a beep code and
halts the system. If the Sahalee BMC is not installed, then BIOS can only notify the user that
the BIST failed; no processors will be disabled.
The BIST failure is displayed during POST and an error is logged to the SEL.
6.1.2
FRB2 – BSP POST Failures
A second timer (FRB2) is set to several minutes by BIOS and is designed to guarantee that the
system completes POST. The FRB2 timer is enabled just before the FRB3 timer is disabled to
prevent any “unprotected” window of time. Near the end of POST, the BIOS disables the FRB2
timer. If the system contains more than 1 GB of memory and the user chooses to test every
DWORD of memory, the watchdog timer is extended before the extended memory test starts,
because the memory test can exceed the timer duration. The BIOS will also disable the
watchdog timer before prompting the user for a boot password. If the system hangs during
POST, before the BIOS disables the FRB2 timer, the Sahalee BMC generates an asynchronous
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Error Reporting and Handling
Intel® Server Board SE7520JR2
system reset (ASR). The Sahalee BMC retains status bits that can be read by the BIOS later in
the POST for the purpose of disabling the previously failing processor, logging the appropriate
event into the System Event Log (SEL), and displaying an appropriate error message to the
user.
Options are provided by the BIOS to control the policy applied to FRB2 failures. By default, an
FRB2 failure results in the failing processor being disabled during the next reboot. This policy
can be overridden to prevent BSP from ever being disabled due to the FRB2 failure or a policy
resulting in disabling the BSP after three consecutive FRB2 failures can be selected. These
options may be useful in systems that experience fatal errors during POST that are not
indicative of a bad processor. Selection of this policy should be considered an advanced
feature and should only be modified by a qualified system administrator. The mBMC does not
support the option to disable the BSP.
6.1.3
FRB3 – BSP Reset Failures
The BIOS and firmware provide a feature to guarantee that the system boots, even if one or
more processors fail during POST. The Sahalee BMC contains two watchdog timers that can be
configured to reset the system upon time-out. The first timer (FRB3) starts counting down
whenever the system comes out of hard reset. With no Intel® Management Module, only one
watchdog timer is present. If the BSP successfully resets and begins executing, the BIOS
disables the FRB-3 timer in the BMC and the system continues executing POST. If the timer
expires because of the BSP’s failure to fetch or execute BIOS code, the Sahalee BMC resets
the system and disables the failed processor. The Sahalee BMC continues to change the
bootstrap processor until the BIOS successfully disables the FRB3 timer. The BMC generates
beep codes on the system speaker if it fails to find a good processor. It will continue to cycle
until it finds a good processor. The process of cycling through all the processors is repeated
upon system reset or power cycle. Soft resets do not affect the FRB3 timer. The duration of the
FRB3 timer is set by system firmware. The mBMC also supports the algorithm described
above, with the exception that it does not disable the processor and it will be logged as an
FRB2 failure.
6.1.4
OS Watchdog Timer - Operating System Load Failures
The OS Watchdog Timer feature is designed to allow watchdog timer protection of the operating
system load process. This is done in conjunction with an operating system-present device driver
or application that will disable the watchdog timer once the operating system has successfully
loaded. If the operating system load process fails, the BMC will reset the system.
The BIOS shall disable the OS Watchdog Timer before handing control to the OS loader if it is
determined to be booting from removable media or the BIOS cannot determine the media type.
If the BIOS is going to boot to a known hard drive, it will read a user option for the OS Watchdog
Timer for HDD Boots. If this is disabled, the BIOS will ensure the watchdog timer is disabled
and boot. Otherwise the BIOS will read the enabled time value from the option and set the OS
Watchdog timer for that value (5, 10, 15, or 20 minutes) before trying to load the operating
system. If the OS Watchdog Timer is enabled, the timer is repurposed as an OS Watchdog
timer and is referred to by that title as well. WARNING: The BIOS may incorrectly determine
that a removable media is a hard drive if the media emulates a hard drive. In this case, the OS
Watchdog timer will not be automatically disabled.
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Error Reporting and Handling
If the BIOS is going to boot to a known PXE-compliant device, then the BIOS reads a user
option for OS Watchdog Timer for PXE Boots and either disables the timer or enables the timer
with a value read from the option (5, 10, 15, or 20 minutes). If the OS Watchdog Timer is
enabled, the timer is repurposed as an OS Watchdog Timer and is referred to by that title as
well.
If the OS Watchdog Timer is enabled and if a boot password is enabled, the BIOS will disable
the OS Watchdog Timer before prompting the user for a boot password regardless of the OS
Watchdog Timer option setting. Also, if the user has chosen to enter BIOS setup, the timer will
be disabled regardless of option settings. Otherwise, if the system hangs during POST, before
the BIOS disables the timer, the BMC generates an asynchronous system reset (ASR). The
BMC retains status bits that can be read by the BIOS later in the POST for the purpose of
disabling the previously failing processor, logging the appropriate event into the SEL, and
displaying an appropriate error message to the user. If no IMM is present no processors will be
disabled. As the timer may be repurposed, the BIOS and BMC will also keep track of which
timer expired (early FRB2, late FRB2, or OS Watchdog) and display the appropriate error
message to the user.
All of the user options are intended to allow a system administrator to set up a system such that
during a normal boot no gap exists during POST that is not covered by the watchdog timer.
Options are provided by the BIOS to control the policy applied to OS Watchdog timer failures.
By default, an OS Watchdog Timer failure will not cause any action. Other options provided by
the BIOS are for the system to reset or power off watchdog timer failure. However, it should be
noted that these failures will NOT result in a processor being disabled (as could happen with an
FRB2 failure).
6.1.5
AP Failures
In systems configured with an Intel Management Module, the BIOS and Sahalee BMC
implement additional safeguards to detect and disable the application processors (AP) in a
multiprocessor system. If an AP fails to complete initialization within a certain time, it is
assumed to be nonfunctional. If the BIOS detects that an AP has failed BIST or is nonfunctional,
it requests the Sahalee BMC to disable that processor. Processors disabled by the Sahalee
BMC are not available for use by the BIOS or the operating system. Since the processors are
unavailable, they are not listed in any configuration tables including SMBIOS tables.
6.1.6
Treatment of Failed Processors
All the failures (FRB3, FRB2, FRB1, and AP failures), including the failing processor, are
recorded into the system event log (SEL). The FRB-3 failure is recorded automatically by the
BMC while the FRB2, FRB1, and AP failures are logged to the SEL by the BIOS. In the case of
an FRB2 failure, some systems will log additional information into the OEM data byte fields of
the SEL entry. This additional data indicates the last POST task that was executed before the
FRB2 timer expired. This information may be useful for failure analysis.
The Sahalee BMC maintains failure history for each processor in non-volatile storage. This
history is used to store a processor’s track record. Once a processor is marked “failed,” it
remains “failed” until the user forces the system to retest the processor by entering BIOS Setup
and selecting the “Processor Retest” option. The BIOS reminds the user about a previous
processor failure during each boot cycle until all processors have been retested and
successfully pass the FRB tests or AP initialization. If all the processors are bad, the system
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does not alter the BSP and attempts to boot from the original BSP. Error messages are
displayed on the console, and errors are logged in the event log of a processor failure.
If the user replaces a processor that has been marked bad by the system, the system must be
informed about this change by running BIOS Setup and selecting that processor to be retested.
If a bad processor is removed from the system, the BMC automatically detects this condition
and clears the status flag for that processor during the next boot.
Three states are possible for each processor slot:
•
•
Processor installed (status only, indicates processor has passed BIOS POST).
Processor failed. The processor may have failed FRB2, FRB3, or BIST, and it has been
disabled.
•
Processor not installed (status only, indicates the processor slot has no processor in it).
Additional information on the FRB may be found in the Sahalee Baseboard Management
Controller EPS.
6.2 Memory Error Handling
The chipset will detect and correct single-bit errors and will detect all double-bit memory errors.
The chipset supports 4-bit single device data correction (SDDC) when in dual channel mode.
Both single-bit and double-bit memory errors are reported to baseboard management by the
BIOS, which handles SMI events generated by the MCH.
Memory Error Handling can be enabled or disabled in system BIOS Setup.
6.2.1
Memory Error Handling in RAS Mode
The MCH supports two memory RAS modes: Sparing and Mirroring. Enabling of Sparing or
Mirroring feature are mutually-exclusive. Use system BIOS Setup to configure memory RAS
mode.
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The following table shows memory error handling with both a mBMC and Sahalee BMC.
Table 57: Memory Error Handling mBMC vs Sahalee
Memory with RAS
mode
Server with mBMC
Server with IMM Sahalee BMC
Sparing mode /
Mirroring mode
When Sparing or Mirroring occurs: When Sparing or Mirroring occurs:
- BIOS will not report memory
RAS configuration to mBMC.
- BIOS will light the faulty DIMM
LED.
- BIOS will report memory RAS
configuration to BMC.
- BIOS will light the faulty DIMM LED.
DIMMs which go off line during OS
runtime will not be back online on the
next system reboot.
DIMMs which go off line during
OS runtime will be back online on
the next system reboot without
user intervention.
Sparing and Mirroring states are
sticky across system reset.
Sparing and Mirroring states are
not sticky across system reset.
Setting “Memory Retest” option in
BIOS Setup will re-enable off-line
DIMMs.
Note: BIOS does not support Memory Data Scrubber Error.
6.2.2
Memory Error Handling in non-RAS Mode
If memory RAS features are not enabled in BIOS Setup, BIOS will apply “10 SBE errors in one
hour” implementation. Enabling of this implementation and RAS features are mutually-exclusive
and automatically handled by system BIOS.
In non-RAS mode, BIOS maintains a counter for Single Bit ECC (SBE) errors. If ten SBE errors
occur within an hour, BIOS will disable SBE detection in the chipset to prevent the System
Event Log (SEL) from being filled up, and the OS from being halted.
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In non-RAS mode, BIOS will assert a Non-Maskable-Interrupt (NMI) on the first Double Bit ECC
(DBE) error.
Table 58: Memory Error Handling in non-RAS mode
Non-RAS mode
Single Bit ECC
(SBE) errors
Server with mBMC
SBE error events will not be
logged.
Server with IMM Sahalee BMC
SBE error events will be logged in SEL.
On the 10th SBE error, BIOS will:
- Disable SBE detection in chipset.
On the 10th SBE error, BIOS will:
- Disable SBE detection in chipset. - Light the faulty DIMM LED.
- Light the faulty DIMM LED.
- Log a SBE termination record to SEL.
Double Bit ECC
(DBE) errors
On the 1st DBE error, BIOS will:
- Log DBE record to SEL.
- Light the faulty DIMM LED.
- Generate NMI.
On the 1st DBE error, BIOS will:
- Log DBE record to SEL.
- Light the faulty DIMM LED.
- Generate NMI.
6.2.3
DIMM Enabling
Setting the “Memory Retest” option to “Enabled” in BIOS Setup will bring all DIMM(s) back on
line regardless of current states.
After replacing faulty DIMM(s), the “Memory Retest” option must be set to “Enabled”.
Note: this step is not required if faulty DIMM(s) were not taken off-line.
6.2.4
Single-bit ECC Error Throttling Prevention
The system detects, corrects, and logs correctable errors. As long as these errors occur
infrequently, the system should continue to operate without a problem.
Occasionally, correctable errors are caused by a persistent failure of a single component. For
example, a broken data line on a DIMM would exhibit repeated errors until replaced. Although
these errors are correctable, continual calls to the error logger can throttle the system,
preventing any further useful work.
For this reason, the system counts certain types of correctable errors and disables reporting if
they occur too frequently. Correction remains enabled but calls to the error handler are
disabled. This allows the system to continue running, despite a persistent correctable failure.
The BIOS adds an entry to the event log to indicate that logging for that type of error has been
disabled. Such an entry indicates a serious hardware problem that must be repaired at the
earliest possible time.
The system BIOS implements this feature for two types of errors, correctable memory errors
and correctable bus errors. If ten errors occur in a single wall-clock hour, the corresponding
error handler disables further reporting of that type of error. A unique counter is used for each
type of error; i.e., an overrun of memory errors does not affect bus error reporting.
The BIOS re-enables logging and SMIs the next time the system is rebooted.
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6.3 Error Logging
This section defines how errors are handled by the system BIOS. Also discussed is the role of
the BIOS in error handling and the interaction between the BIOS, platform hardware, and server
management firmware with regard to error handling. In addition, error-logging techniques are
described and beep codes for errors are defined.
One of the major requirements of server management is to correctly and consistently handle
system errors. System error sources can be categorized as follows:
•
•
•
•
PCI bus
Memory multi-bit errors (single-bit errors are not logged)
Sensors
Processor internal errors, bus/address errors, thermal trip errors, temperatures and
voltages, and GTL voltage levels
•
Errors detected during POST, logged as POST errors
Sensors are managed by the mBMC. The mBMC is capable of receiving event messages from
individual sensors and logging system events
6.3.1
SMI Handler
The SMI handler handles and logs system-level events that are not visible to the server
management firmware. If SEL error logging is disabled in the BIOS Setup utility, no SMI signals
are generated on system errors. If error logging is enabled, the SMI handler preprocesses all
system errors, even those that are normally considered to generate an NMI.
The SMI handler sends a command to the BMC to log the event and provides the data to be
logged. For example, The BIOS programs the hardware to generate an SMI on a single-bit
memory error and logs the location of the failed DIMM in the system event log.
6.3.2
PCI Bus Error
The PCI bus defines two error pins, PERR# and SERR#, for reporting PCI parity errors and
system errors, respectively. The BIOS can be instructed to enable or disable reporting the
PERR# and SERR# through NMI. Disabling NMI for PERR# and/or SERR# also disables
logging of the corresponding event. In the case of PERR#, the PCI bus master has the option
to retry the offending transaction, or to report it using SERR#. All other PCI-related errors are
reported by SERR#. All the PCI-to-PCI bridges are configured so that they generate a SERR#
on the primary interface whenever there is a SERR# on the secondary side, if SERR# has been
enabled through Setup. The same is true for PERR#.
6.3.3
Processor Bus Error
If the chipset supports ECC on the processor bus then the BIOS enables the error correction
and detection capabilities of the processors by setting appropriate bits in the processor model
specific register (MSR) and appropriate bits inside the chipset.
In the case of irrecoverable errors on the host processor bus, proper execution of the
asynchronous error handler (usually SMI) cannot be guaranteed and the handler cannot be
relied upon to log such conditions. The handler will record the error to the SEL only if the
system has not experienced a catastrophic failure that compromises the integrity of the handler.
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6.3.4
Memory Bus Error
The hardware is programmed to generate an SMI on single-bit data errors in the memory array
if ECC memory is installed. The SMI handler records the error and the DIMM location to the
system event log. Double-bit errors in the memory array are mapped to the SMI because the
mBMC cannot determine the location of the bad DIMM. The double-bit errors may have
corrupted the contents of SMRAM. The SMI handler will log the failing DIMM number to the
mBMC if the SMRAM contents are still valid. The ability to isolate the failure down to a single
DIMM may not be available on certain platforms, and/or during early POST.
6.3.5
System Limit Error
The BMC monitors system operational limits. It manages the A/D converter, defining voltage
and temperature limits as well as fan sensors and chassis intrusion. Any sensor values outside
of specified limits are fully handled by the BMC. The BIOS does not generate an SMI to the host
processor for these types of system events.
6.3.6
Processor Failure
The BIOS detects any processor BIST failures and logs the event. The failed processor can be
identified by the first OEM data byte field in the log. For example, if processor 0 fails, the first
OEM data byte will be 0. The BIOS depends upon the BMC to log the watchdog timer reset
event.
If an OS device driver is using the watchdog timer to detect software or hardware failures and
that timer expires, an Asynchronous Reset (ASR) is generated, which is equivalent to a hard
reset. The POST portion of the BIOS can query the BMC for a watchdog reset event as the
system reboots, and then log this event in the SEL.
6.3.7
Boot Event
The BIOS downloads the system date and time to the BMC during POST and logs a boot event.
This record does not indicate an error, and software that parses the event log should treat it as
such.
6.4 Error Messages and Error Codes
The BIOS indicates the current testing phase during POST by writing a hex code to I/O location
80h. If errors are encountered, error messages or codes will either be displayed to the video
screen, or if an error has occurred prior to video initialization, errors will be reported through a
series of audio beep codes.
6.4.1
POST Error Messages
Table 59: Memory BIOS Messages
Description
Message Displayed
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Gate20 Error
The BIOS is unable to properly control the motherboard’s
Gate A20 function, which controls access of memory
over 1 MB. This may indicate a problem with the
motherboard.
Multi-Bit ECC Error
This message will only occur on systems using ECC
enabled memory modules. ECC memory has the ability
to correct single-bit errors that may occur from faulty
memory modules.
A multiple bit corruption of memory has occurred, and the
ECC memory algorithm cannot correct it. This may
indicate a defective memory module.
Parity Error
Fatal Memory Parity Error. System halts after displaying
this message.
Table 60: Boot BIOS Messages
Message Displayed
Description
Boot Failure ...
This is a generic message indicating the BIOS could not
boot from a particular device. This message is usually
followed by other information concerning the device.
Invalid Boot Diskette
Drive Not Ready
A diskette was found in the drive, but it is not configured
as a bootable diskette.
The BIOS was unable to access the drive because it
indicated it was not ready for data transfer. This is often
reported by drives when no media is present.
A: Drive Error
The BIOS attempted to configure the A: drive during
POST, but was unable to properly configure the device.
This may be due to a bad cable or faulty diskette drive.
B: Drive Error
The BIOS attempted to configure the B: drive during
POST, but was unable to properly configure the device.
This may be due to a bad cable or faulty diskette drive.
Insert BOOT diskette in A:
The BIOS attempted to boot from the A: drive, but could
not find a proper boot diskette.
Reboot and Select proper Boot device or Insert Boot
Media in selected Boot device
BIOS could not find a bootable device in the system
and/or removable media drive does not contain media.
NO ROM BASIC
This message occurs on some systems when no
bootable device can be detected.
Table 61: Storage Device BIOS Messages
Message Displayed
Description
Primary Master Hard Disk Error
The IDE/ATAPI device configured as Primary Master
could not be properly initialized by the BIOS. This
message is typically displayed when the BIOS is trying to
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Message Displayed
Description
detect and configure IDE/ATAPI devices in POST.
The IDE/ATAPI device configured as Primary Slave
could not be properly initialized by the BIOS. This
message is typically displayed when the BIOS is trying to
detect and configure IDE/ATAPI devices in POST.
The IDE/ATAPI device configured as Secondary Master
could not be properly initialized by the BIOS. This
message is typically displayed when the BIOS is trying to
detect and configure IDE/ATAPI devices in POST.
The IDE/ATAPI device configured as Secondary Slave
could not be properly initialized by the BIOS. This
message is typically displayed when the BIOS is trying to
detect and configure IDE/ATAPI devices in POST.
The IDE/ATAPI device configured as Master in the 3rd
IDE controller could not be properly initialized by the
BIOS. This message is typically displayed when the
BIOS is trying to detect and configure IDE/ATAPI
devices in POST.
Primary Slave Hard Disk Error
Secondary Master Hard Disk Error
Secondary Slave Hard Disk Error
3rd Master Hard Disk Error
3rd Slave Hard Disk Error
4th Master Hard Disk Error
4th Slave Hard Disk Error
5th Master Hard Disk Error
5th Slave Hard Disk Error
6th Master Hard Disk Error
6th Slave Hard Disk Error
The IDE/ATAPI device configured as Slave in the 3rd IDE
controller could not be properly initialized by the BIOS.
This message is typically displayed when the BIOS is
trying to detect and configure IDE/ATAPI devices in
POST.
The IDE/ATAPI device configured as Master in the 4th
IDE controller could not be properly initialized by the
BIOS. This message is typically displayed when the
BIOS is trying to detect and configure IDE/ATAPI
devices in POST.
The IDE/ATAPI device configured as Slave in the 4th
IDE controller could not be properly initialized by the
BIOS. This message is typically displayed when the
BIOS is trying to detect and configure IDE/ATAPI
devices in POST.
The IDE/ATAPI device configured as Master in the 5th
IDE controller could not be properly initialized by the
BIOS. This message is typically displayed when the
BIOS is trying to detect and configure IDE/ATAPI
devices in POST.
The IDE/ATAPI device configured as Slave in the 5th
IDE controller could not be properly initialized by the
BIOS. This message is typically displayed when the
BIOS is trying to detect and configure IDE/ATAPI
devices in POST.
The IDE/ATAPI device configured as Master in the 6th
IDE controller could not be properly initialized by the
BIOS. This message is typically displayed when the
BIOS is trying to detect and configure IDE/ATAPI
devices in POST.
The IDE/ATAPI device configured as Slave in the 6th
IDE controller could not be properly initialized by the
BIOS. This message is typically displayed when the
BIOS is trying to detect and configure IDE/ATAPI
devices in POST.
Primary Master Drive - ATAPI Incompatible
Primary Slave Drive - ATAPI Incompatible
The IDE/ATAPI device configured as Primary Master
failed an ATAPI compatibility test. This message is
typically displayed when the BIOS is trying to detect and
configure IDE/ATAPI devices in POST.
The IDE/ATAPI device configured as Primary Slave
failed an ATAPI compatibility test. This message is
typically displayed when the BIOS is trying to detect and
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Message Displayed
Description
configure IDE/ATAPI devices in POST.
Secondary Master Drive - ATAPI Incompatible
The IDE/ATAPI device configured as Secondary Master
failed an ATAPI compatibility test. This message is
typically displayed when the BIOS is trying to detect and
configure IDE/ATAPI devices in POST.
Secondary Slave Drive - ATAPI Incompatible
3rd Master Drive - ATAPI Incompatible
3rd Slave Drive - ATAPI Incompatible
4th Master Drive - ATAPI Incompatible
4th Slave Drive - ATAPI Incompatible
5th Master Drive - ATAPI Incompatible
5th Slave Drive - ATAPI Incompatible
6th Master Drive - ATAPI Incompatible
6th Slave Drive - ATAPI Incompatible
S.M.A.R.T. Capable but Command Failed
The IDE/ATAPI device configured as Secondary Slave
failed an ATAPI compatibility test. This message is
typically displayed when the BIOS is trying to detect and
configure IDE/ATAPI devices in POST.
The IDE/ATAPI device configured as Master in the 3rd
IDE controller failed an ATAPI compatibility test. This
message is typically displayed when the BIOS is trying to
detect and configure IDE/ATAPI devices in POST.
The IDE/ATAPI device configured as Slave in the 3rd IDE
controller failed an ATAPI compatibility test. This
message is typically displayed when the BIOS is trying to
detect and configure IDE/ATAPI devices in POST.
The IDE/ATAPI device configured as Master in the 4th
IDE controller failed an ATAPI compatibility test. This
message is typically displayed when the BIOS is trying to
detect and configure IDE/ATAPI devices in POST.
The IDE/ATAPI device configured as Slave in the 4th IDE
controller failed an ATAPI compatibility test. This
message is typically displayed when the BIOS is trying to
detect and configure IDE/ATAPI devices in POST.
The IDE/ATAPI device configured as Master in the 5th
IDE controller failed an ATAPI compatibility test. This
message is typically displayed when the BIOS is trying to
detect and configure IDE/ATAPI devices in POST.
The IDE/ATAPI device configured as Slave in the 5th IDE
controller failed an ATAPI compatibility test. This
message is typically displayed when the BIOS is trying to
detect and configure IDE/ATAPI devices in POST.
The IDE/ATAPI device configured as Master in the 6th
IDE controller failed an ATAPI compatibility test. This
message is typically displayed when the BIOS is trying to
detect and configure IDE/ATAPI devices in POST.
The IDE/ATAPI device configured as Slave in the 6th IDE
controller failed an ATAPI compatibility test. This
message is typically displayed when the BIOS is trying to
detect and configure IDE/ATAPI devices in POST.
The BIOS tried to send a S.M.A.R.T. message to a hard
disk, but the command transaction failed.
This message can be reported by an ATAPI device using
the S.M.A.R.T. error reporting standard. S.M.A.R.T.
failure messages may indicate the need to replace the
hard disk.
S.M.A.R.T. Command Failed
The BIOS tried to send a S.M.A.R.T. message to a hard
disk, but the command transaction failed.
This message can be reported by an ATAPI device using
the S.M.A.R.T. error reporting standard. S.M.A.R.T.
failure messages may indicate the need to replace the
hard disk.
S.M.A.R.T. Status BAD, Backup and Replace
A S.M.A.R.T. capable hard disk sends this message
when it detects an imminent failure.
This message can be reported by an ATAPI device using
the S.M.A.R.T. error reporting standard. S.M.A.R.T.
failure messages may indicate the need to replace the
hard disk.
S.M.A.R.T. Capable and Status BAD
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Message Displayed
Intel® Server Board SE7520JR2
Description
when it detects an imminent failure.
This message can be reported by an ATAPI device using
the S.M.A.R.T. error reporting standard. S.M.A.R.T.
failure messages may indicate the need to replace the
hard disk.
Table 62: Virus Related BIOS Messages
Message Displayed
Description
BootSector Write !!
The BIOS has detected software attempting to write to a
drive’s boot sector. This is flagged as possible virus
activity. This message will only be displayed if Virus
Detection is enabled in AMIBIOS setup.
VIRUS: Continue (Y/N)?
If the BIOS detects possible virus activity, it will prompt
the user. This message will only be displayed if Virus
Detection is enabled in AMIBIOS setup.
Table 63: System Configuration BIOS Messages
Message Displayed
Description
DMA-2 Error
Error initializing secondary DMA controller. This is a fatal
error, often indication a problem with system hardware.
POST error while trying to initialize the DMA controller.
This is a fatal error, often indication a problem with
system hardware.
DMA Controller Error
Checking NVRAM..Update Failed
BIOS could not write to the NVRAM block. This message
appears when the FLASH part is write-protected or if
there is no FLASH part (System uses a PROM or
EPROM).
Microcode Error
BIOS could not find or load the CPU Microcode Update
to the CPU. This message only applies to INTEL CPUs.
The message is most likely to appear when a brand new
CPU is installed in a motherboard with an outdated
BIOS. In this case, the BIOS must be updated to include
the Microcode Update for the new CPU.
NVRAM Checksum Bad, NVRAM Cleared
Resource Conflict
There was an error in while validating the NVRAM data.
This causes POST to clear the NVRAM data.
More than one system device is trying to use the same
non-shareable resources (Memory or I/O).
The NVRAM data used to store Plug’n’Play (PnP) data
was not used for system configuration in POST.
The NVRAM data used to store Plug’n’Play (PnP) data
was not used for system configuration in POST due to a
data error.
NVRAM Ignored
NVRAM Bad
Static Resource Conflict
PCI I/O conflict
Two or more Static Devices are trying to use the same
resource space (usually Memory or I/O).
A PCI adapter generated an I/O resource conflict when
configured by BIOS POST.
PCI ROM conflict
A PCI adapter generated an I/O resource conflict when
configured by BIOS POST.
PCI IRQ conflict
A PCI adapter generated an I/O resource conflict when
configured by BIOS POST.
PCI IRQ routing table error
BIOS POST (DIM code) found a PCI device in the
system but was unable to figure out how to route an IRQ
to the device. Usually this error is causing by an
incomplete description of the PCI Interrupt Routing of the
system.
Timer Error
Indicates an error while programming the count register
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Message Displayed
Description
of channel 2 of the 8254 timer. This may indicate a
problem with system hardware.
Interrupt Controller-1 error
Interrupt Controller-2 error
BIOS POST could not initialize the Master Interrupt
Controller. This may indicate a problem with system
hardware.
BIOS POST could not initialize the Slave Interrupt
Controller. This may indicate a problem with system
hardware.
Table 64: CMOS BIOS Messages
Message Displayed
Description
CMOS Date/Time Not Set
The CMOS Date and/or Time are invalid. This error can
be resolved by readjusting the system time in AMIBIOS
Setup.
CMOS Battery Low
CMOS Battery is low. This message usually indicates
that the CMOS battery needs to be replaced. It could
also appear when the user intentionally discharges the
CMOS battery.
CMOS Settings Wrong
CMOS Checksum Bad
CMOS settings are invalid. This error can be resolved by
using AMIBIOS Setup.
CMOS contents failed the Checksum check. Indicates
that the CMOS data has been changed by a program
other than the BIOS or that the CMOS is not retaining its
data due to malfunction. This error can typically be
resolved by using AMIBIOS Setup.
Table 65: Miscellaneous BIOS Messages
Message Displayed
Description
Keyboard Error
Keyboard is not present or the hardware is not
responding when the keyboard controller is initialized.
PS2 Keyboard support is enabled in the BIOS setup but
the device is not detected.
PS2 Mouse support is enabled in the BIOS setup but the
device is not detected.
PS2 Keyboard not found
PS2 Mouse not found
Keyboard/Interface Error
Unlock Keyboard
Keyboard Controller failure. This may indicate a problem
with system hardware.
PS2 keyboard is locked. User needs to unlock the
keyboard to continue the BIOS POST.
The system has been halted. A reset or power cycle is
required to reboot the machine. This message appears
after a fatal error has been detected.
System Halted
Table 66: USB BIOS Error Messages
Message Displayed
Description
Warning! Unsupported USB device found and disabled!
This message is displayed when a non-bootable USB
device is enumerated and disabled by the BIOS.
Warning! Port 60h/64h emulation is not supported by this This message is displayed to indicate that port 60h/64h
USB Host Controller!
emulation mode cannot be enabled for this USB host
controller. This condition occurs if USB KBC emulation
option is set for non-SMI mode.
Warning! EHCI controller disabled. It requires 64bit data
support in the BIOS.
This message is displayed to indicate that EHCI
controller is disabled because of incorrect data structure.
This condition occur if the USB host controller needs 64-
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Message Displayed
Intel® Server Board SE7520JR2
Description
bit data structure while the USB is ported with 32-bit data
structure.
Table 67: SMBIOS BIOS Error Messages
Message Displayed
Description
Not enough space in Runtime area!!. SMBIOS data will
not be available.
This message is displayed when the size of the SMBIOS
data exceeds the available SMBIOS runtime storage
size.
6.4.2
POST Error Codes
During POST after the video has been initialized, the BIOS outputs the current boot progress
codes on the video screen. Progress codes are 32-bit quantities plus optional data. The 32- bit
numbers include class, subclass, and operation information. Class and subclass point to the
type of the hardware that is being initialized. Operation represents the specific initialization
activity.
Based on the data bit availability to display the progress code, a progress code can be
customized to fit the data width. The higher the data bit, higher the granularity of allowable
information. Progress codes may be reported by system BIOS or option ROMs.
The response section in the following table is divided into three types:
•
•
•
Warning: The message is displayed on screen and the error is logged to the SEL. The
system will continue booting with a degraded state.
Pause: The message is displayed on the screen and the boot process is paused until the
appropriate input is given to either continue the boot process or take corrective action.
Halt: The message is displayed on the screen, an error is logged to the SEL, and the
system cannot boot unless the error is corrected.
The error codes are defined by Intel and whenever possible are backward compatible with error
codes used on earlier platforms.
All POST error codes are logged in the System Event Log.
Table 68: Error Codes and Messages
Error Code
0000
Error Message
Response
Pause
Timer Error
0003
0004
0005
CMOS Battery Low
CMOS Settings Wrong
CMOS Checksum Bad
Pause
Pause
Pause
Halt
Not an error
Halt
Pause
Pause
Pause
Pause
Pause
0008
0009
000A
000B
000C
000E
000F
0010
Unlock Keyboard
PS2 Keyboard not found
KBC BAT Test failed
CMOS memory size different
RAM R/W test failed
A: Drive Error
B: Drive Error
Floppy Controller Failure
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Error Message
Response
0012
CMOS time not set
Pause
0014
0040
PS2 Mouse not found
Refresh timer test failed
Not an error
Halt
0041
0042
0043
0044
Display memory test failed
CMOS Display Type Wrong
~<INS> Pressed
Pause
Pause
Pause
Halt
DMA Controller Error
0045
0046
DMA-1 Error
DMA-2 Error
Halt
Halt
0047
0048
Unknown BIOS error. Error code = 147 (this is really a PMM_MEM_ALLOC_ERR)
Password check failed
Halt
Halt
0049
004A
004B
004C
Unknown BIOS error. Error code = 149 (this is really SEGMENT_REG_ERR)
Unknown BIOS error. Error code = 14A (this is really ADM_MODULE_ERR)
Unknown BIOS error. Error code = 14B (this is really LANGUAGE_MODULE_ERR)
Keyboard/Interface Error
Halt
Pause
Pause
Pause
004D
004E
Primary Master Hard Disk Error
Primary Slave Hard Disk Error
Pause
Pause
004F
0050
0055
Secondary Master Hard Disk Error
Secondary Slave Hard Disk Error
Primary Master Drive - ATAPI Incompatible
Pause
Pause
Pause
0056
Primary Slave Drive - ATAPI Incompatible
Pause
0057
0058
0059
005B
005D
Secondary Master Drive - ATAPI Incompatible
Secondary Slave Drive - ATAPI Incompatible
Third Master Device Error
Fourth Master Device Error
S.M.A.R.T. Status BAD, Backup and Replace
Pause
Pause
Pause
Pause
Pause
005E
0120
Password check failed
Thermal Trip Failure
Pause
Pause
0146
0150
Insufficient Memory to Shadow PCI ROM
BSP Processor failed BIST
Pause
Pause
0160
0161
0180
0181
0192
0193
0194
0195
0196
0197
5120
5121
5122
Processor missing microcode – P0
Processor missing microcode – P1
BIOS does not support current stepping – P0
BIOS does not support current stepping – P1
L2 cache size mismatch
Pause
Pause
Pause
Pause
Pause
Pause
Pause
Pause
Pause
Pause
Pause
Pause
Pause
CPUID, Processor stepping are different
CPUID, Processor family are different
Front side bus mismatch.
CPUID, Processor Model are different
Processor speeds mismatched
CMOS Cleared By Jumper
Password cleared by jumper
CMOS Cleared By BMC Request
8104
8105
8110
8111
8120
8121
Warning! Port 60h/64h emulation is not supported by this USB Host Controller !!!
Warning! EHCI controller disabled. It requires 64bit data support in the BIOS.
Processor 01 Internal error (IERR)
Processor 02 Internal error (IERR)
Processor 01 Thermal Trip error
Warning
Warning
Warning
Warning
Warning
Warning
Processor 02 Thermal Trip error
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Intel® Server Board SE7520JR2
Error Message
Response
Warning
Warning
Warning
Warning
Warning
Warning
Pause
Pause
Pause
Pause
Pause
8130
8131
8140
8141
8150
8151
8160
8161
8170
8171
8180
8181
8190
8198
8300
8301
8305
84F1
84F2
Processor 01 disabled
Processor 02 disabled
Processor 01 failed FRB-3 timer
Processor 02 failed FRB-3 timer
Processor 01 failed initialization on last boot.
Processor 02 failed initialization on last boot.
Processor 01 unable to apply BIOS update
Processor 02 unable to apply BIOS update
Processor 01 failed BIST
Processor 02 failed BIST
BIOS does not support current stepping for Processor 1
BIOS does not support current stepping for Processor 2
Watchdog timer failed on last boot
OS boot watchdog timer failure
BaseBoard Management Controller failed Self Test
Not enough space in Runtime area!!. SMBIOS data will not be available.
Primary Hot swap Controller failed to function
BIST failed for all available processors
Pause
Warning
Pause
Pause
Pause
Pause
Halt
BaseBoard Management Controller failed to respond
Pause
84F3
84F4
84FF
8500
8501
8502
8504
8505
8506
8600
8601
8602
8603
BaseBoard Management Controller in Update Mode
Sensor Data Record Empty
Pause
Pause
Warning
Pause
Pause
Pause
Pause
Pause
Pause
Pause
Pause
Pause
Pause
System Event Log Full
Bad or missing memory in slot 3A
Bad or missing memory in slot 2A
Bad or missing memory in slot 1A
Bad or missing memory in slot 3B
Bad or missing memory in slot 2B
Bad or missing memory in slot 1B
Primary & Secondary BIOS ID's don't match.
Override Jumper is set to force boot from lower bank of flash ROM.
WatchDog Timer Expired(Secondary BIOS maybe bad!).
Secondary BIOS CheckSum fail.
The following table indicates error codes that are sent to the Management Module for error
logging as a BMC pass-through command. All commands are of “Error” type. The syntax of
error logging with the management module and SEL is different. The same error is logged
differently in the SEL than with the Management Module.
Table 69: Error Codes Sent to the Management Module
Error code
161
Error messages
Bad CMOS Battery
Keyboard failure
301
102
System Board failure ( Timer tick 2 test failure)
Diskette Controller Failure
106
604
Diskette Drive ? failure
163
Time of the day not set
01298000
01298001
The BIOS does not support the current stepping of Processor P0
The BIOS does not support the current stepping of Processor P1
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Error messages
196
Processor cache mismatch detected.
198
Processor speed mismatch detected.
Processor P0 failed BIST.
00019700
00019701
00150100
00150100
289
Processor P1 failed BIST.
Multi-bit error occurred: forcing NMI
Multi-bit error occurred: forcing NMI
DIMM D?? is Disabled.
DIMM = ??
DIMM = ?? DIMM = ?? ( could not isolate)
00150900
00151100
00151200
00151300
00151350
00151351
SERR/PERR Detected on PCI bus ( no source found )
MCA: Recoverable Error Detected Proc = ??
MCA: Unrecoverable Error Detected Proc = ??
MCA: Excessive Recoverable Errors Proc = ??
Processor MachineCheck Data a Bank = ?? APIC ID = ?? CR4 = ???? ????
Processor MachineCheck Data b Address = ???? ???? ???? ???? Time Stamp = ???? ????
???? ????
00151352
00151500
00151720
00151730
00151700
Processor MachineCheck Data b Status = ???? ???? ???? ????
Excessive Single Bit Errors Detected
Parity Error Detected on Processor bus
IMB Parity/CRC Error
Started Hot Spare memory Copy. Failed row/rows = ?? and ?? copied to spare row/rows = ??
and ?? ( used on CMIC–HE box )
00151710
Completed Hot Spare memory Copy. Failed row/rows = ?? and ?? copied to spare row/rows =
?? and ?? ( used on CMIC–HE box )
6.4.3
BIOS Generated POST Error Beep Codes
The following table lists POST error beep codes. Prior to system video initialization, the BIOS
uses these beep codes to communicate error conditions.
Table 70: BIOS Generated Beep Codes
Number of Beeps
Description
1
2
3
4
Memory refresh timer error
Parity error in base memory (first 64KB block)
Base memory read / write test error
Motherboard timer not operational
5
6
7
8
9
Processor error
8042 Gate A20 test error (cannot switch to protected mode)
General exception error (processor exception error)
Display memory error (system video adapter)
ROM checksum error
10
11
CMOS shutdown register read/write error
Cache memory test failed
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Table 71: Troubleshooting BIOS Beep Codes
Number of Beeps
Troubleshooting Action
1, 2 or 3
Reseat the memory, or replace with known good modules.
4-7, 9-11
Fatal error indicating a serious problem with the system. Consult your system manufacturer.
Before declaring the motherboard beyond all hope, eliminate the possibility of interference by a
malfunctioning add-in card. Remove all expansion cards except the video adapter.
If the beep codes are generated even when all other expansion cards are absent, the
motherboard has a serious problem. Consult your system manufacturer.
If the beep codes are not generated when all other expansion cards are absent, one of the add-
in cards is causing the malfunction. Insert the cards back into the system one at a time until the
problem happens again. This will reveal the malfunctioning add-in card.
8
If the system video adapter is an add-in card, replace or reseat the video adapter. If the video
adapter is an integrated part of the system board, the board may be faulty.
6.4.4
Boot Block Error Beep Codes
The following table defines beep codes that may occur if a failure occurs while performing a
BIOS Boot Block Update.
Table 72: Boot Block Error Beep Codes
Number of Beeps
Description
1
2
3
4
5
6
7
8
9
Insert diskette in floppy drive A:
‘AMIBOOT.ROM’ file not found in root directory of diskette in A:
Base Memory error
Flash Programming successful
Floppy read error
Keyboard controller BAT command failed
No Flash EPROM detected
Floppy controller failure
Boot Block BIOS checksum error
Flash Erase error
10
11
12
Flash Program error
‘AMIBOOT.ROM’ file size error
13
BIOS ROM image mismatch (file layout does not match image present in flash device)
Insert diskette with AMIBOOT.001 File for Multi-Disk Recovery
1 long beep
6.4.5
BMC Generated Beep Codes (Professional/Advanced only)
The Sahalee BMC generates beep codes upon detection of the failure conditions listed in the
following table. Each digit in the code is represented by a sequence of beeps whose count is
equal to the digit.
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Table 73: BMC Beep Code
Reason for Beep
Code
1
Front panel CMOS clear initiated
1-5-1-1
1-5-2-1
1-5-2-3
FRB failure (processor failure)
No processors installed or processor socket 1 is empty.
Processor configuration error (e.g., mismatched VIDs, Processor slot 1 is empty)
1-5-2-4
1-5-4-2
1-5-4-3
1-5-4-4
Front-side bus select configuration error (e.g., mismatched BSELs)
Power fault: DC power unexpectedly lost (e.g. power good from the power supply was deasserted)
Chipset control failure
Power control failure (e.g., power good from the power supply did not respond to power request)
6.5 Checkpoints
6.5.1
System ROM BIOS POST Task Test Point (Port 80h Code)
The BIOS sends a 1-byte hex code to port 80 before each task. The port 80 codes provide a
troubleshooting method in the event of a system hang during POST. Table 75 provides a list of
the Port 80 codes and the corresponding task description.
6.5.2
Diagnostic LEDs
All port 80 codes are displayed using the Diagnostic LEDs found on the back edge of the
baseboard. The diagnostic LED feature consists of a hardware decoder and four dual color
LEDs. During POST, the LEDs will display all normal POST codes representing the progress of
the BIOS POST. Each code will be represented by a combination of colors from the four LEDs.
The LEDs are capable of displaying three colors: Green, Red, and Amber. The POST codes are
divided into two nibbles, an upper nibble and a lower nibble. Each bit in the upper nibble is
represented by a Red LED and each bit in the lower nibble is represented by a green LED. If
both bits are set in the upper and lower nibbles then both Red and Green LEDs are lit, resulting
in an Amber color. If both bits are clear, then the LED is off.
In the below example, BIOS sends a value of ACh to the Diagnostic LED decoder. The LEDs
are decoded as follows:
•
•
Red bits = 1010b = Ah
Green bits = 1100b = Ch
Since the red bits correspond to the upper nibble and the green bits correspond to the lower
nibble, the two are concatenated to be ACh.
Table 74: POST Progress Code LED Example
LEDs
Ach
Red
Green
Red
Green
Red
Green
Red
Green
1
1
0
1
1
0
0
0
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Result
Amber
Green
Red
Off
MSB
LSB
Diagnostic LEDs
MSB
LSB
Back edge of baseboard
Figure 24. Location of Diagnostic LEDs on Baseboard
6.5.3
POST Code Checkpoints
Table 75: POST Code Checkpoints
Diagnostic LED Decoder
Description
Checkpoint
G=Green, R=Red, A=Amber
MSB
LSB
Disable NMI, parity, video for EGA, and DMA controllers. Initialize
BIOS, POST, Run-time data area. Initialize BIOS modules on POST
entry and GPNV area. Initialized CMOS as mentioned in the Kernel
Variable "wCMOSFlags."
03
OFF
OFF
G
G
Check CMOS diagnostic byte to determine if battery power is OK and
CMOS checksum is OK. Verify CMOS checksum manually by reading
storage area. If the CMOS checksum is bad, update CMOS with
power-on default values and clear passwords. Initialize status register
A.
04
OFF
G
OFF OFF
Initializes data variables that are based on CMOS setup questions.
Initializes both the 8259 compatible PICs in the system
Initializes the interrupt controlling hardware (generally PIC) and
interrupt vector table.
05
06
OFF
OFF
G
G
OFF
G
G
Do R/W test to CH-2 count reg. Initialize CH-0 as system timer. Install
the POSTINT1Ch handler. Enable IRQ-0 in PIC for system timer
interrupt.
OFF
Traps INT1Ch vector to "POSTINT1ChHandlerBlock."
Initializes the CPU. The BAT test is being done on KBC. Program the
08
G
OFF OFF OFF keyboard controller command byte is being done after Auto detection
of KB/MS using AMI KB-5.
C0
C1
C2
C5
R
R
R
R
R
R
R
A
OFF OFF Early CPU Init Start -- Disable Cache - Init Local APIC
OFF
G
G
Set up boot strap processor Information
OFF Set up boot strap processor for POST
OFF
G
Enumerate and set up application processors
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Description
Checkpoint
G=Green, R=Red, A=Amber
MSB
R
LSB
OFF Re-enable cache for boot strap processor
Early CPU Init Exit
OFF Initializes the 8042 compatible Key Board Controller.
Detects the presence of PS/2 mouse.
C6
C7
0A
0B
0C
A
A
G
G
G
G
R
G
G
G
G
OFF
OFF
G
G
OFF OFF Detects the presence of Keyboard in KBC port.
Testing and initialization of different Input Devices. Also, update the
Kernel Variables.
0E
G
G
G
OFF
A
Traps the INT09h vector, so that the POST INT09h handler gets
control for IRQ1. Uncompress all available language, BIOS logo, and
Silent logo modules.
13
24
30
OFF
OFF
OFF
OFF
G
G
R
R
Early POST initialization of chipset registers.
OFF Uncompress and initialize any platform specific BIOS modules.
OFF
R
Initialize System Management Interrupt.
Initializes different devices through DIM.
2A
G
OFF
A
OFF
See DIM Code Checkpoints section of document for more information.
Initializes different devices. Detects and initializes the video adapter
installed in the system that have optional ROMs.
2C
2E
G
G
G
G
R
A
OFF
OFF Initializes all the output devices.
Allocate memory for ADM module and uncompress it. Give control to
31
OFF
OFF
R
A
ADM module for initialization. Initialize language and font modules for
ADM. Activate ADM module.
Initializes the silent boot module. Set the window for displaying text
information.
33
37
38
OFF
OFF
G
OFF
G
A
A
R
A
A
R
Displaying sign-on message, CPU information, setup key message,
and any OEM specific information.
Initializes different devices through DIM. See DIM Code Checkpoints
section of document for more information.
OFF
39
G
G
OFF
OFF
R
A
A
R
Initializes DMAC-1 and DMAC-2.
Initialize RTC date/time.
3A
Test for total memory installed in the system. Also, Check for DEL or
ESC keys to limit memory test. Display total memory in the system.
3B
3C
G
G
OFF
G
R
R
A
R
Mid POST initialization of chipset registers.
Detect different devices (Parallel ports, serial ports, and coprocessor
40
OFF
R
OFF OFF in CPU, … etc.) successfully installed in the system and update the
BDA, EBDA…etc.
Programming the memory hole or any kind of implementation that
needs an adjustment in system RAM size if needed.
50
52
OFF
OFF
R
R
OFF
G
R
R
Updates CMOS memory size from memory found in memory test.
Allocates memory for Extended BIOS Data Area from base memory.
60
75
78
7A
7C
84
85
87
OFF
OFF
G
R
A
R
R
A
G
G
G
R
R
R
A
R
OFF Initializes NUM-LOCK status and programs the KBD typematic rate.
A
R
R
R
Initialize Int-13 and prepare for IPL detection.
Initializes IPL devices controlled by BIOS and option ROMs.
Initializes remaining option ROMs.
G
G
Generate and write contents of ESCD in NVRam.
R
OFF OFF Log errors encountered during POST.
R
OFF
G
G
G
Display errors to the user and gets the user response for error.
Execute BIOS setup if needed / requested.
R
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Diagnostic LED Decoder
G=Green, R=Red, A=Amber
Description
Checkpoint
MSB
A
LSB
OFF OFF Late POST initialization of chipset registers.
8C
8D
8E
90
G
G
G
A
A
R
R
R
OFF
G
G
Build ACPI tables (if ACPI is supported)
OFF Program the peripheral parameters. Enable/Disable NMI as selected
Late POST initialization of system management interrupt.
OFF Check boot password if installed.
OFF OFF
R
A0
A1
OFF
OFF
R
R
G
Clean-up work needed before booting to operating system.
Takes care of runtime image preparation for different BIOS modules.
Fill the free area in F000h segment with 0FFh. Initializes the Microsoft
IRQ Routing Table. Prepares the runtime language module. Disables
the system configuration display if needed.
A2
R
OFF
A
OFF
A4
A7
R
R
G
G
R
A
OFF Initialize runtime language module.
Displays the system configuration screen if enabled. Initialize the
G
CPU’s before boot, which includes the programming of the MTRR’s.
A8
A9
A
A
OFF
OFF
R
R
OFF Prepare CPU for operating system boot including final MTRR values.
G
OFF
G
Wait for user input at config display if needed.
Uninstall POST INT1Ch vector and INT09h vector. Deinitializes the
ADM module.
AA
A
OFF
A
AB
AC
B1
00
A
A
OFF
G
A
R
R
Prepare BBS for Int 19 boot.
OFF End of POST initialization of chipset registers.
Save system context for ACPI.
R
OFF
A
OFF
OFF OFF OFF Passes control to OS Loader (typically INT19h).
6.5.4
Bootblock Initialization Code Checkpoints
The Bootblock initialization code sets up the chipset, memory and other components before
system memory is available. The following table describes the type of checkpoints that may
occur during the bootblock initialization portion of the BIOS:
Table 76: Bootblock Initialization Code Checkpoints
Diagnostic LED Decoder
Description
Checkpoint
G=Green, R=Red, A=Amber
MSB
LSB
Early chipset initialization is done. Early super I/O initialization is done
including RTC and keyboard controller. NMI is disabled.
Before D1
Perform keyboard controller BAT test. Check if waking up from power
management suspend state. Save power-on CPUID value in scratch
CMOS.
D1
R
R
OFF
A
Go to flat mode with 4GB limit and GA20 enabled. Verify the
bootblock checksum.
D0
D2
R
R
R
R
OFF
G
R
R
Disable CACHE before memory detection. Execute full memory sizing
module. Verify that flat mode is enabled.
If memory sizing module not executed, start memory refresh and do
memory sizing in Bootblock code. Do additional chipset initialization.
Re-enable CACHE. Verify that flat mode is enabled.
D3
R
R
G
A
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Description
Checkpoint
G=Green, R=Red, A=Amber
MSB
LSB
Test base 512KB memory. Adjust policies and cache first 8MB. Set
stack.
D4
D5
R
A
A
OFF
OFF
R
Bootblock code is copied from ROM to lower system memory and
control is given to it. BIOS now executes out of RAM.
R
A
Both key sequence and OEM specific method is checked to determine
if BIOS recovery is forced. Main BIOS checksum is tested. If BIOS
recovery is necessary, control flows to checkpoint E0. See Bootblock
Recovery Code Checkpoints section of document for more
information.
D6
R
A
G
R
Restore CPUID value back into register. The Bootblock-Runtime
interface module is moved to system memory and control is given to
it. Determine whether to execute serial flash.
D7
D8
D9
R
A
A
A
R
R
G
A
R
A
The Runtime module is uncompressed into memory. CPUID
information is stored in memory.
OFF
OFF
Store the Uncompressed pointer for future use in PMM. Copying Main
BIOS into memory. Leaves all RAM below 1MB Read-Write including
E000 and F000 shadow areas but closing SMRAM.
Restore CPUID value back into register. Give control to BIOS POST
(ExecutePOSTKernel). See POST Code Checkpoints section of
document for more information.
DA
A
R
G
R
6.5.5
Bootblock Recovery Code Checkpoint
The Bootblock recovery code gets control when the BIOS determines that a BIOS recovery
needs to occur because the user has forced the update or the BIOS checksum is corrupt. The
following table describes the type of checkpoints that may occur during the Bootblock recovery
portion of the BIOS:
Table 77: Bootblock Recovery Code Checkpoint
Diagnostic LED Decoder
Description
Checkpoint
G=Green, R=Red, A=Amber
MSB
LSB
Initialize the floppy controller in the super I/O. Some interrupt vectors
E0
R
R
R
OFF are initialized. DMA controller is initialized. 8259 interrupt controller is
initialized. L1 cache is enabled.
Set up floppy controller and data. Attempt to read from floppy.
Determine information about root directory of recovery media.
E9
EA
A
A
R
R
R
A
G
Enable ATAPI hardware. Attempt to read from ARMD and ATAPI CD-
OFF
ROM. Determine information about root directory of recovery media.
EB
EF
F0
F1
A
A
R
R
R
A
R
R
A
A
R
R
G
G
R
A
Disable ATAPI hardware. Jump back to checkpoint E9.
Read error occurred on media. Jump back to checkpoint EB.
Search for pre-defined recovery file name in root directory.
Recovery file not found.
Start reading FAT table and analyze FAT to find the clusters occupied
by the recovery file.
F2
R
R
A
R
F3
F5
R
R
R
A
A
R
A
A
Start reading the recovery file cluster by cluster.
Disable L1 cache.
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G=Green, R=Red, A=Amber
Description
Checkpoint
MSB
LSB
Check the validity of the recovery file configuration to the current
configuration of the flash part.
FA
A
R
R
A
A
R
Make flash write enabled through chipset and OEM specific method.
Detect proper flash part. Verify that the found flash part size equals
the recovery file size.
FB
A
A
F4
FC
FD
R
A
A
A
A
A
R
R
R
R
R
A
The recovery file size does not equal the found flash part size.
Erase the flash part.
Program the flash part.
The flash has been updated successfully. Make flash write disabled.
Disable ATAPI hardware. Restore CPUID value back into register.
Give control to F000 ROM at F000:FFF0h.
FF
A
A
A
A
6.5.6
DIM Code Checkpoints
The Device Initialization Manager (DIM) module gets control at various times during BIOS
POST to initialize different Buses. The following table describes the main checkpoints where the
DIM module is accessed:
Table 78: DIM Code Checkpoints
Checkpoint
Description
2A
Initialize different buses and perform the following functions:
ƒ
Reset, Detect, and Disable (function 0). Function 0 disables all device nodes, PCI devices,
and PnP ISA cards. It also assigns PCI bus numbers.
ƒ
Static Device Initialization (function 1). Function 1 initializes all static devices that include
manual configured onboard peripherals, memory and I/O decode windows in PCI-PCI
bridges, and noncompliant PCI devices. Static resources are also reserved.
ƒ
Boot Output Device Initialization (function 2). Function 2 searches for and initializes any
PnP, PCI, or AGP video devices.
38
Initialize different buses and perform the following functions:
ƒ
ƒ
ƒ
Boot Input Device Initialization (function 3). Function 3 searches for and configures PCI
input devices and detects if system has standard keyboard controller.
IPL Device Initialization (function 4). Function 4 searches for and configures all PnP and
PCI boot devices.
General Device Initialization (function 5). Function 5 configures all onboard peripherals that
are set to an automatic configuration and configures all remaining PnP and PCI devices.
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6.5.7
ACPI Runtime Checkpoints
ACPI checkpoints are displayed when an ACPI capable operating system either enters or
leaves a sleep state. The following table describes the type of checkpoints that may occur
during ACPI sleep or wake events:
Table 79: ACPI Runtime Checkpoints
Checkpoint
Description
AC
AA
First ASL check point. Indicates the system is running in ACPI mode.
System is running in APIC mode.
01, 02, 03, 04, 05
10, 20, 30, 40, 50
Entering sleep state S1, S2, S3, S4, or S5.
Waking from sleep state S1, S2, S3, S4, or S5.
6.5.8
POST Progress FIFO (Professional / Advanced only)
With SE7520JR2 based platforms that utilize either the Professional or Advanced management
modules, the Sahalee BMC will maintain a RAM FIFO of the last 16 post progress codes that it
has received. Accompanying this FIFO is a timestamp that indicates when the last code was
received.
By default, the Sahalee BMC rejects duplicate codes that are received; however, the command
interface allows BIOS to explicitly indicate that the code should be stored regardless of whether
the previous code was a duplicate.
A corresponding command allows system software to be able to retrieve the contents of the
FIFO. This command can be executed via the internal and external interfaces to the Sahallee
BMC.
The POST Progress FIFO is volatile. It is cleared whenever the system loses AC power, is
powered-down (ACPI S4 or S5), or is reset.
6.5.9
Memory Error Codes
Table 80: Memory Error Codes
Tpoint
001h
Description
MEM_ERR_CHANNEL_B_OFF
(DIMM mismatch forced Channel B disabled)
MEM_ERR_CK_PAIR_OFF
002h
0E1h
(Slow DIMM(s) forced clock pair disabled)
MEM_ERR_NO_DEVICE
(No memory installed)
0E2h
0E3h
MEM_ERR_TYPE_MISMATCH
MEM_ERR_UNSUPPORTED_DIMM
(Unsupported DIMM type)
0E4h
MEM_ERR_CHL_MISMATCH
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Description
MEM_ERR_SIZE_MISMATCH
MEM_ERR_ECC_MISMATCH
0E5h
0E6h
0E8h
0E9h
0EAh
0EBh
0ECh
0EDh
0EEh
0EFh
0F0h
MEM_ERR_ROW_ADDR_BITS
MEM_ERR_INTERNAL_BANKS
MEM_ERR_TIMING
MEM_ERR_INST_ORDER_ERR
MEM_ERR_NONREG_MIX
MEM_ERR_LATENCY
MEM_ERR_NOT_SUPPORTED
MEM_ERR_CONFIG_NOT_SUPPORTED
SYS_FREQ_ERR
(Flag for Unsupported System Bus Freq)
DIMM_ERR_CFG_MIX
0F1h
0F2h
0F3h
0F4h
(Usupported DIMM mix)
DQS_FAILURE
(indicates DQS failure)
MEM_ERR_MEM_TEST_FAILURE
(Error code for unsuccessful Memory Test)
MEM_ERR_ECC_INIT_FAILURE
(Error code for unsuccessful ECC and Memory Initialization)
6.6 Light Guided Diagnostics
The baseboard provides system fault/status LEDs in many areas of the board. There are fault
LEDs for each DIMM slot and for each processor, and status LEDs for 5-volt stand-by and
system state. Operation of some of these LEDs is dependant upon whether an IMM is installed
or not. With on-board platform instrumentation, there is limited diagnostic LED support.
•
•
In systems configured with an IMM, the CPU 1 or CPU 2 led is lit to indicate the processor
is disabled. DC-Off or AC Cycle will cause the LED to turn off.
CPU 1 and 2 LEDs are both lit to indicate the baseboard HW has discovered a
configuration error. If processor mis-population is detected when using standard on-board
platform instrumentation, baseboard hardware will illuminate both processor error LEDs. If
an IMM (Professional or Advanced editions) is used, the Sahalee BMC will generate a
series of beep codes when this condition is detected and will illuminate the processor 1
fault LED. An AC cycle will cause the LEDs to turn off.
•
•
•
DIMM fault LEDs are lit by BIOS whenever BIOS disables a specific DIMM.
The 5-Volt stand-by LED is always lit when 5-volt stand-by is present.
The Status LED displays the state of the system. It mirrors the state of the Control Panel
Status LED. Valid states include: Solid Green, Blinking Green, Blinking Amber, Solid
Amber, and Off.
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7. Connectors and Jumper Blocks
7.1 Power Connectors
The main power supply connection is obtained using a SSI Compliant 2x12 pin connector. In
addition, there are three additional power related connectors; one SSI compliant 2x4 pin power
connector (J4J1) providing support for additional 12V, one SSI compliant 1x5 pin connector
(J1G1) providing I2C monitoring of the power supply, and one 1x2 pin IDE power connector
(U2E1) providing power to support IDE flash devices. The following tables define their pin-outs
Table 81: Power Connector Pin-out
Pin
Signal
+3.3Vdc
Color
Pin
Signal
+3.3Vdc
Color
Orange
1
2
3
4
5
6
7
8
9
Orange
13
14
15
16
17
18
19
20
21
22
23
24
+3.3Vdc
GND
Orange
Black
Red
-12Vdc
GND
Blue
Black
Green
Black
Black
Black
White
Red
+5Vdc
GND
PS_ON#
GND
Black
Red
+5Vdc
GND
GND
Black
Gray
GND
PWR_OK
5VSB
RSVD_(-5V)
+5Vdc
+5Vdc
+5Vdc
GND
Purple
Yellow
Yellow
Orange
10
11
12
+12Vdc
+12Vdc
+3.3Vdc
Red
Red
Black
Table 82: 12V Power Connector (J4J1)
Pin
Signal
GND
Color
1
2
3
4
5
6
7
8
GND
GND
GND
+12Vdc
+12Vdc
+12Vdc
+12Vdc
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Table 83: Power Supply Signal Connector (J1G1)
Pin
Signal
5VSB_SCL
Color
Orange
1
2
3
4
5
5VSB_SDA
Black
Red
PS_ALTER_L, Not used
3.3V SENSE-
Yellow
Green
3.3V SENSE+
Table 84: IDE Power Connector Pinout (U2E1)
Pin
Signal
1
2
GND
5V VCC
7.2 Riser Slots
The baseboard provides two riser slots; one providing PCI-X signals to a riser capable of
supporting Low Profile add-in cards, and the other implementing Intel® Adaptive Slot
Technology providing both PCI-X and PCI-Express signals to risers capable of supporting full
height add-in cards. The following tables show the pin-out for each riser slot.
7.2.1
Low Profile PCI-X Riser Slot
The low profile riser slot pin assignments are shown below. On a given riser card, the PCI add-
in slot closest to the baseboard will always have device ID 17. On a three-slot riser card the
middle PCI add-in slot will have device ID 18, and the top slot will have device ID 19. The
interrupts on the PCI add-in slots should be rotated following the PCI bridge specification 1.0.
To prevent anyone from putting a PCI add-in card directly into the riser slot, the connector has
been pined out so that Pin 1 is furthest from the board edge. Side B should be closest to the
memory DIMMs.
Table 85: Low Profile Riser Slot Pinout
Pin-
Side
B
PCI Spec
Signal
Description
Pin-
Side A
PCI Spec
Signal
Description
101
-12V
101
100
RSVD
100
RSVD
+12V
99
98
GND
99
98
RSVD
+5V
RSVD
97
+5V
97
+5V
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Description
Pin-
Side
B
PCI Spec
Signal
Description
Pin-
Side A
PCI Spec
Signal
96
+5V
96
INTA#
This pin will be connected on the 2U
riser to INT_A# of the bottom PCI
slot, INT_D# of the middle slot and
INT_C# of the top slot.
95
94
INTB#
INTD#
This pin will be connected on
the 2U riser to INT_B# of the
bottom PCI slot, INT_A# of the
middle slot and INT_D# of the
top slot.
95
INTC#
+5V
This pin will be used by 1U/2U riser
to bring the INT_C# interrupt on the
bottom PCI slot down to the
baseboard.
This pin will be used by 1U/2U
riser to bring the INT_D#
94
interrupt on the bottom PCI slot
down to the baseboard.
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
+5V
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
GND
GND
REQ3#
GND
Highest PCI Slot (SLOT3)
CLK3
GND
Highest PCI Slot (SLOT3)
Middle PCI Slot (SLOT2)
Middle PCI Slot (SLOT2)
GNT3#
+5V
Highest PCI Slot (SLOT3)
Was GND
CLK2
GND
RSVD
+5V
REQ2#
GND
Was GND
LECC4
GND
LECC5
GND
Was Vio 3.3V or 1.5V
LECC3
GNT2#
3.3VAUX
RST#
+3.3V
GNT1#
GND
+3.3V
LECC2
GND
3 slots at 375ma
CLK1
GND
Lowest PCI slot (SLOT1)
Was VIO 3.3V or 1.5V
Lowest PCI slot (SLOT1)
REQ1#
+3.3V
AD[31]
AD[29]
GND
Lowest PCI slot (SLOT1)
Was 3.3V or 1.5V
PME#
AD[30]
+3.3V
AD[28]
AD[26]
GND
AD[27]
AD[25]
+3.3V
C/BE[3]#
AD[24]
RSVD
Lower slot IDSEL=AD17 Middle
Slot=AD18, Top slot=AD19
69
68
67
66
65
64
63
AD[23]
GND
69
68
67
66
65
64
63
+3.3V
AD[22]
AD[20]
GND
AD[21]
AD[19]
+3.3V
AD[18]
AD[16]
+3.3V
AD[17]
C/BE[2]#
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Description
Pin-
Side
B
PCI Spec
Signal
Description
Pin-
Side A
PCI Spec
Signal
62
GND
62
61
FRAME#
61
IRDY#
GND
KEYWAY
KEYWAY
KEYWAY
KEYWAY
60
59
58
57
56
55
54
53
+3.3V
60
59
58
57
56
55
54
53
TRDY#
GND
DEVSEL#
PCI-XCAP
LOCK#
PERR#
+3.3V
STOP#
+3.3V
SMBD
SMBCLK
GND
Daisy chain to all slots
Daisy chain to all slots
SERR#
+3.3V
PAR
/ECC0
52
51
50
49
47
47
46
45
44
43
42
41
40
39
38
37
36
C/BE[1]#
AD[14]
GND
52
51
50
49
47
47
46
45
44
43
42
41
40
39
38
37
36
AD[15]
+3.3V
AD[13]
AD[11]
GND
AD[12]
AD[10]
M66EN
Mode 2
GND
AD[09]
C/BE[0]#
+3.3V
+3.3V
+3.3V
AD[06]
AD[04]
GND
Was GND
AD[08]
AD[07]
+3.3V
AD[05]
AD[03]
GND
AD[02]
AD[00]
+3.3V
AD[01]
+3.3V
Was Vio 3.3V or 1.5V
Was Vio 3.3V or 1.5V
ACK64#
/ECC1
REQ64#
/ECC6
35
34
33
32
31
30
29
+5V
35
34
33
32
31
30
29
+5V
+5V
+5V
RSVD
GND
GND
C/BE[7]#
C/BE[5]#
V (I/O)
C/BE[6]#
C/BE4#
GND
3.3V or 1.5V
PAR64
/ECC7
28
27
26
25
AD[63]
AD[61]
V (I/O)
AD[59]
28
27
26
25
AD[62]
GND
3.3V or 1.5V
AD[60]
AD[58]
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Description
Pin-
Side
B
PCI Spec
Signal
Description
Pin-
Side A
PCI Spec
Signal
24
AD[57]
24
23
22
21
20
19
18
17
16
15
14
13
12
GND
23
22
21
20
19
18
17
16
15
14
13
12
GND
AD[56]
AD[54]
V (I/O)
AD[52]
AD[50]
GND
AD[55]
AD[53]
GND
3.3V or 1.5V
AD[51]
AD[49]
V (I/O)
AD[47]
AD[45]
GND
3.3V or 1.5V
AD[48]
AD[46]
GND
AD[44]
AD[42]
V (I/O)
AD[43]
AD[41]
3.3V or 1.5V
KEYWAY
KEYWAY
KEYWAY
KEYWAY
11
10
9
GND
11
10
9
AD[40]
AD[38]
GND
AD[39]
AD[37]
V (I/O)
AD[35]
AD[33]
GND
8
3.3V or 1.5V
8
AD[36]
AD[34]
GND
7
7
6
6
5
5
AD[32]
4
4
3
PRSNT_N
GND
0=Riser Present
0=1U, 1= 2U
3
GND
GND
2
2
1
Size
1
5V = 12 = 12 or 6 amps 3 slots needs 6 amps for 3 10W boards
3.3V= 19 = 19 or 9.5 amps 3 slots needs 9 amps for 3 10W boards
202 pin connector length = 139.45mm=5.49”
7.2.2
Full Height PCI-X Riser Slot
The full-height/length riser slot is implemented using a 280-pin connector and utilizes Intel
Adaptive Slot Technology capable of supporting both PCI-X and PCI-Express riser cards. On a
given riser card, the PCI add-in slot closest to the baseboard will always have device ID 17. On
a three-slot riser card the middle PCI add-in slot will have device ID 18, and the top slot will
have device ID 19. The interrupts on the PCI add-in slots should be rotated following the PCI
bridge specification 1.0.
The following table provides the pinout for the Full Height riser slot.
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Description
Table 86: Full-height Riser Slot Pinout
Pin-Side PCI Spec
Signal
Description
Pin-Side PCI Spec
Signal
B
A
140
139
138
137
136
135
134
12V
140
139
138
137
136
135
134
12V
12V
12V
Ground
-12V
12V
GND
3.3VAux
Wake#
12V
375ma per slot and 3 slots
Two slots = 4 amps
GND
REFCLK2 FL-3GIO Slot 2/PXH - DIF5P
+
3.3V
133
REFCLK2 FL-3GIO Slot 2/PXH - DIF5N
+
133
PERST_N
GND
132
131
GND
GND
132
131
1 amp per pin
REFCLK1 FL-3GIO Slot 1 – DIF4P
+
130
HSOp(0)
130
REFCLK1 FL-3GIO Slot 1 – DIF4N
+
129
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
102
HSOn(0)
GND
129
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
102
GND
HSIp(0)
HSIn(0)
GND
GND
HSOp(1)
HSOn(1)
GND
GND
HSIp(1)
HSIn(1)
GND
GND
HSOp(2)
HSOn(2)
GND
GND
HSIp(2)
HSIn(2)
GND
GND
HSOp(3)
HSOn(3)
GND
GND
HSIp(3)
HSIn(3)
GND
GND
HSOp(4)
HSOn(4)
GND
GND
HSIp(4)
HSIn(4)
GND
GND
HSOp(5)
HSOn(6)
GND
GND
HSIp(5)
HSIn(5)
GND
GND
HSOp(6)
HSOn(6)
GND
GND
HSIp(6)
HSIn(6)
GND
GND
HSOp(7)
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Description
Pin-Side PCI Spec
Description
Pin-Side PCI Spec
Signal
B
Signal
A
101
100
99
HSOn(7)
GND
101
100
99
GND
HSIp(7)
HSIn(7)
GND
+5V
98
INTB#
This pin will be connected on
the 2U riser to INT_B# of the
bottom PCI slot, INT_A# of the
middle slot and INT_D# of the
top slot.
98
97
INTD#
+5V
This pin will be used by 1U/2U 97
riser to bring the INT_B#
interrupt from the top and
INT_C# from the middle PCI
slot down to the baseboard.
ZCR_PRS From TDI of lowest slot only
NT_L
96
95
96
+5V
+5V
Reserved SLOT_ID_FL, not required as 95
the risers are unique.
94
93
+5V
94
ZCR_MSKI From TMS of lowest slot only
D_L
IOP INTA SCSI Interrupt A to ZCR. This 93
pin will be used by 1U/2U riser
to bring the INT_C# interrupt
on the bottom PCI slot down to
the baseboard
+5V
92
91
IOP INTB SCSI Interrupt B to ZCR. This 92
pin will be used by 1U/2U riser
to bring the INT_D# interrupt
on the bottom PCI slot down to
the baseboard
INTA#
INTC#
This pin will be connected on the
2U riser to INT_A# of the bottom
PCI slot, INT_D# of the middle
slot and INT_C# of the top slot.
GND
91
This pin will be used by 1U/2U
riser to bring the INT_A# interrupt
from the top and INT_B# from the
middle PCI slot down to the
baseboard.
90
89
88
87
86
85
84
83
CLK3
GND
Highest PCI Slot (SLOT3)
Middle PCI Slot (SLOT2)
Middle PCI Slot (SLOT2)
90
89
88
87
86
85
84
83
GND
REQ3#
GND
Highest PCI Slot (SLOT3)
Highest PCI Slot (SLOT3)
CLK2
GND
GNT3#
GND
REQ2#
GND
RST#
GND
Reserved
GND
Reserved
KEY
KEY
KEY
End of x16 PCI-Express
connector
KEY
82
81
80
79
78
Reserved
GND
82
81
80
79
78
+5V
Was Vio 3.3V or 1.5V
Reserved
GND
CLK1
Lowest PCI slot (SLOT1)
Lowest PCI slot (SLOT1)
Ground
REQ1#
GNT2#
+3.3V
Middle PCI Slot (SLOT2)
Was Vio 3.3V or 1.5V
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Pin-Side PCI Spec
Signal
Description
Was Vio 3.3V or 1.5V
Pin-Side PCI Spec
Signal
Description
B
A
77
76
+3.3V
77
GNT1#
Lowest PCI slot (SLOT1)
PME2#
active riser only, PME needed 76
per PCI segment, reserved for
passive riser
Ground
75
74
AD[31]
AD[29]
75
PME1#
PME3#
for passive slots on both passive
and active riser
74
active riser only, PME needed per
PCI segment reserved for
passive riser
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
Ground
AD[27]
AD[25]
+3.3V
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
AD[30]
+3.3V
AD[31]
AD[28]
AD[26]
Ground
AD[24]
RSVRD
+3.3V
C/BE[3]#
AD[23]
Ground
AD[21]
AD[19]
+3.3V
Reserved
AD[22]
AD[20]
Ground
AD[18]
AD[16]
+3.3V
AD[17]
C/BE[2]#
Ground
IRDY#
+3.3V
FRAME#
Ground
TRDY#
Ground
STOP#
+3.3V
DEVSEL#
PCI-XCAP
LOCK#
PERR#
+3.3V
SERR#
+3.3V
SMBD
SMBCLK
Ground
PAR
Daisy chain to all slots
Daisy chain to all slots
C/BE[1]#
AD[14]
Ground
AD[12]
AD[10]
M66EN
Ground
Ground
AD[08]
AD[07]
+3.3V
AD[15]
+3.3V
AD[13]
AD[11]
Ground
AD[09]
C/BE[0]#
+3.3V
AD[06]
AD[04]
Ground
AD[05]
AD[03]
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Description
Pin-Side PCI Spec
Description
Pin-Side PCI Spec
Signal
B
Signal
A
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
Ground
AD[01]
+3.3V
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
AD[02]
AD[00]
+3.3V
Was Vio 3.3V or 1.5V
Was Vio 3.3V or 1.5V
ACK64#
+5V
REQ64#
+5V
+5V
+5V
Reserved
Ground
C/BE[6]#
C/BE[4]#
Ground
AD[63]
AD[61]
3.3V
+5V
Was gnd
Was VIO
Was GND
C/BE[7]#
C/BE[5]#
Ground
PAR64
AD[62]
3.3V
AD[60]
AD[58]
Ground
AD[56]
AD[54]
3.3V
AD[59]
AD[57]
Ground
AD[55]
AD[53]
Ground
AD[51]
AD[49]
3.3V
AD[52]
AD[50]
Ground
AD[48]
AD[46]
Ground
AD[44]
AD[42]
AD[47]
AD[45]
Ground
AD[43]
KEY
KEY
11
10
9
Reversed PCI-Express
Reversed PCI-Express
KEY
KEY
11
10
9
AD[41]
Ground
AD[39]
AD[37]
3.3V
3.3V
V
AD[40]
AD[38]
Ground
AD[36]
AD[34]
Ground
AD[32]
8
8
7
7
6
AD[35]
AD[33]
Ground
Type1
6
5
5
4
4
3
Type(1:0)
3
PXH_RST Input to reset the PXH on the
_N
active Riser
(1U)00 = PCI-Express,
(1U)01 = PCI
(1U)10 = N/A
(1U)11 = N/A
2
Type0
(2U)00=2xPCI-Express+PCI
2
Ground
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Description
Pin-Side PCI Spec
Signal
Description
Pin-Side PCI Spec
Signal
B
A
(2U)01=3x PCI
(2U)10=PXH 3 PCI-X-D
(2U)11=No Riser
0=1U, 1 = 2U
1
Size
1
PXH_PWR Input to indicate to PXH on active
OK riser that baseboard power is OK
7.3 System Management Headers
The baseboard provides several access points to the management buses built into the
baseboard. The following table provides the pinouts for each connector.
7.3.1
Intel® Management Module Connector
A 120-pin connector (J1C1) is included on the baseboard to support the optionally installed
“Professional” or “Advanced” Management modules.
Table 87: IMM Connector Pinout (J1C1)
FMC Signal Name
DVI_TX1M
FMC
Pin
2
Description
Green TMDS differential DVI output of graphics chip
Blue TMDS differential DVI output of graphics chip
Green TMDS differential DVI output of graphics chip
Blue TMDS differential DVI output of graphics chip
TMDS differential DVI clock output of graphics chip
Red TMDS differential DVI output of graphics chip
TMDS differential DVI clock output of graphics chip
Red TMDS differential DVI output of graphics chip
KVM mouse data from SIO
DVI_TX0M
3
DVI_TX1P
4
DVI_TX0P
5
DVI_CLK_TX1CM
DVI_TX2M
8
9
DVI_CLK_TX1CP
DVI_TX2P
10
11
14
15
16
17
18
19
20
21
22
25
SIO_MS_DAT
SIO_KB_DAT
SIO_MS_CLK
SIO_KB_CLK
PS2_MS_DAT
PS2_KB_DAT
PS2_MS_CLK
PS2_KB_CLK
KM_INHIB_N
FML_SDA
KVM keyboard data from SIO
KVM mouse clock from SIO
KVM keyboard clock from SIO
KVM passthrough mouse data from PS2 connector
KVM passthrough keyboard data from PS2 connector
KVM passthrough mouse clock from PS2 connector
KVM passthrough keyboard clock from PS2 connector
KVM enable of baseboard Switch for mouse and keyboard
Fast Management Link Data In. This signal is driven by the FML Slave, i.e. NIC
controller
FML_MCL_I2CSCL
26
Fast Management Link Clock Out. This signal is driven by the FML Master, i.e.
FMM. When not configured as FML, this signal is used as I2C clock.
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FMC Signal Name
FML_SINTEX
FMC
Pin
27
Description
Fast Management Link Slave Interrupt/Clock Extension. This signal is driven by
the FML Slave, and has a dual usage:
Used as an Alert signal for the slave to notify master that data is ready to be
read from slave
Used as a clock Extension (Stretching) for the slave to indicate to the master to
extend its low period of the clock
FML_MDA_I2CSDA
28
Fast Management Link Data Out. This signal is driven by the FML Master.
When not configured as FML, this signal is used as I2C data
ICH_LCLK
USB_M
31
32
33
34
35
36
LPC 33Mhz clock input
Reserved for future use as USB input. Baseboard can leave as NC
KCS interrupt signal from FMM Card.
FMM_SYSIRQ
USB_P
Reserved for future use as USB input. Baseboard can leave as NC
LPC Address/data bus Bit 1
ICH_LAD1
FMM_RSMRST_N
When this signal is asserted, the FMM is held in reset. This is a Standby reset
indication, and should be driven by a Standby monitor device such as the
Heceta7 or Dallas DS1815
ICH_LFRAME_N
ICH_LAD0
37
38
39
40
41
40
LPC Cycle Framing
LPC Address/data bus Bit 0
LPC Address/data bus Bit 3
LPC Power down indication
LPC Address/data bus Bit 2
ICH_LAD3
ICH_LPCPD_N
ICH_LAD2
FMM_LPCRST_N
LPC bus reset. Must be properly buffered on motherboard to ensure
monotonicity
DFP_CLK
DFP_DAT
46
48
Serial clock signal for DFP EDID device. Must connect to DFP_CLK pin on the
graphics chip.
Serial data signal for DFP EDID device. Must connect to DFP_DAT pin on the
Graphics chip.
IPMB_I2C_5VSB_SDA
IPMB_I2C_5VSB_SCL
SMB_I2C_3VSB_SDA
49
50
51
Connects to IPMB header
Connects to IPMB header
This bus should connect to the PCI slots, ICH, and mBMC (host I/F). An
isolated version of this bus (non-Standby) should connect to the DIMMs, and
clock buffer(s)
SMB_I2C_3VSB_SCL
52
This bus should connect to the PCI slots, ICH, and mBMC (host I/F). An
isolated version of this bus (non-Standby) should connect to the DIMMs, and
clock buffer(s)
PERIPH_I2C_3VSB_SDA 53
This bus should connect to the mBMC (Peripheral I/F), SIO, Heceta, Front panel
header. A level shifted version of this bus (5V Standby) should connect to the
Power Supply header
PERIPH_I2C_3VSB_SCL
MCH_I2C_3V_SDA
54
55
This bus should connect to the mBMC (Peripheral I/F), SIO, Heceta, Front panel
header. A level shifted version of this bus (5V Standby) should connect to the
Power Supply header
This bus should connect to the Northbridge and I/O bridge (MCH and PXH
respectively in the LH chipset). In a system that supports PCI Hot Plug, this bus
should also connect to the Power control devices if possible (such as the
MIC2591 for PCI-Express for example)
MCH_I2C_3V_SCL
56
57
This bus should connect to the Northbridge and I/O bridge (MCH and PXH
respectively in the LH chipset). In a system that supports PCI Hot Plug, this bus
should also connect to the Power control devices if possible (such as the
MIC2591 for PCI-Express for example)
LAN_I2C_3VSB_SDA
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FMC Signal Name
FMC
Pin
58
Description
LAN_I2C_3VSB_SCL
HDD_FLT_LED_N
LAN usage
64
Drive Fault LED output driven when FMM detects a bad drive from the Hot
Swap controller on the Hot Swap disk Drive sub-system.
FMM_PS_PWR_ON_N
COOL_FLT_LED_N
65
66
Power On Request to the system Power Supply
Cool Fault LED output driven when FMM detects a bad Fan if SSI front panel is
detect.
FMM_CPU_VRD_EN
67
This signal is driven by the FMM to enable the CPU VRDs and allow the VRD
power good chain to complete. This signal can also be used to keep the system
in reset for an extended time, beyond what the chipset RST_BTN_N can
provide.
FMM_SCI_N
68
SCI event request. If ACPI EC is supported by FMM, this signal is used for ACPI
interrupts.
ICH_PWR_BTN_N
FMM_SPKR_N
69
72
FMM pass through of Front panel power button to chipset
FMM uses this to create Beep Codes on the system audible alarm. This signal is
configured as an Open Drain buffer in the FMM and must be pulled up to 3.3V
Standby on the motherboard
FP_NMI_BTN_N
73
NMI / Diagnostic interrupt from front panel. Actual NMI generated by SMBUS
command to mBMC
FP_SLP_BTN_N
FP_ID_BTN_N
SYS_PWR_GD
74
75
76
Front panel Sleep Button input, if used
Front panel ID button, will cause the ID light to toggle
Signal from the end of the baseboard VRD Power good chain. This signal
should be the last VRD power good indication generated on the baseboard.
Usually this would be the signal feeding the Chipset Power OK input. Used by
FMM in conjunction with RST_PWRGD_PS to determine if all critical VRDs
have successfully reached their nominal value.
CPU2_SKTOCC_N
CLK_32K_RTC
80
81
Indicates that a Processor is in the application processor socket
This signal is used for “Synchronized clock with system RTC”. FMM can
synchronize own RTC with system RTC. IPMI define synchronized method.
clock comes from the Chipset RTC function.
CPU1_SKTOCC_N
82
Indicates that a Processor is in the primary processor socket. If this socket is
detected empty and there’s an attempt to power up the system, the FMM will
output an Error Beep Code and prevent the System from turning on
FMM_SOUT
FMM_SIN
85
86
87
88
EMP/SOL Serial Data Out. This is the Serial Port data output from FMM and
should be connected to the SIN signal in the SIO3 device
EMP/SOL Serial Data In. This is the Serial Port data input into the FMM and
should be connected to the SOUT signal in the SIO3 device
FMM_DCD_N
FMM_RTS_N
EMP/SOL Data Carrier Detect. This is the Serial Port Data Carrier Detect input
into the FMM and should be connected to the DCD signal in the SIO3 device
EMP/SOL Request to Send. This is the Serial Port Request to Send output from
FMM and should be connected to the CTS (Clear to Send) signal in the SIO3
device
FMM_DTR_N
FMM_CTS_N
89
90
EMP/SOL Data Terminal Ready. This is the Serial Port Data Terminal Ready
output from FMM and should be connected to the DSR (Data Set Ready) signal
in the SIO3 device
EMP/SOL Clear to Send. This is the Serial Port Clear to Send input into the
FMM and should be connected to the RTS (Ready to Send) signal in the SIO
device
ICMB_RX
93
94
96
Inter Chassis Communication Management Bus receive data
Inter Chassis Communication Management Bus transmit data
Inter Chassis Communication Management Bus transceiver enable
ICMB_TX
ICMB_TX_EN
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FMC Signal Name
FMC
Pin
97
Description
FMM_RI_BUF_N
RST_PWRGD_PS
Ring Indicator from the EMP serial port on the baseboard
101
Power good signal from power subsystem. In typical system, this signal is
connected to PWR_OK signal on power supply. This signal is monitored by the
FMM to detect a Power Supply failure
LAN_SMBALERT_N
ICH_SLP_S4_N
102
103
105
Alert signal from the motherboard NIC (LOM).
Power Off request from the Chipset
ICH_SMI_BUFF_N
SMI signal from Chipset. This signal is monitored by the FMM to detect an “SMI
Time-out” condition. If this signal is asserted for longer than a predefined SMI
Time-out timer, an event is logged and the FMM interrogates the chipset for
further data, such as fatal errors.
CHPSET_ERR_ALERT_N 106
When available from chipset, indicates that a error occurred and FMM will need
interrogate Chipset for further data, such as fatal errors. If not available, leave
as NC.
FP_RST_BTN_N
ICH_RST_BTN_N
109
110
Front panel Reset Button input.
Passthrough of front panel Reset button to the chipset. FMM chassis control
command will also use this.
FP_PWR_BTN_N
FMM_IRQ_SMI_N
FMM_PRES_N
113
116
120
Front panel power button input.
FMM might use this signal to generate an SMI to the system.
When FMM is present, this signal is asserted. This signal can be used to notify
BIOS that a module is present (via routing to GPIO), as well as to control any
logic which behaves differently when FMM is present, such as the FML mux (if
supported), etc
7.3.2
ICMB Header
A white 5-pin header (J1D1) located on the left side of the baseboard near the internal SCSI
connector cutout.
Table 88: ICMB Header Pin-out (J1D1)
Pin
Signal Name
Type
Description
1
5 V standby
Power
2
3
4
5
Transmit
Signal
Signal
Signal
GND
UART signals
UART signals
UART signals
Transmit Enable
Receive
Ground
7.3.3
IPMB Header
When either the “Professional” or “Advanced” management modules are installed, the yellow 3-
pin IPMB connector (J3F1) can be used to access the IPMB bus.
Note: There is no IPMB bus available with standard on-board platform instrumentation.
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Table 89: IPMB Connector Pin-out (J3F1)
Pin
Signal Name
Description
1
Local I2C SDA
BMC IMB 5 V STNDBY Data Line
2
3
GND
Local I2C SCL
BMC IMB 5 V STNDBY Clock Line
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7.3.4
OEM RMC Connector (J3B2)
A white eight pin connector (J3B2) used for OEM specific management cards.
Table 90: OEM RMC Connector Pinout (J3B2)
Pin
Signal Name
Description
1
PERIPH_I2C_3VSB_SDA
2
3
4
5
6
7
8
PERIPH_I2C_3VSB_SCL
POST_STATUS
+5V
GROUND
5V_STBY
ICH5_SYS_RST_L
FP_PWR_BTN_RMC
7.4 Control Panel Connectors
The Server Board SE7520JR2 provides three control panel interconnects: a high density 100-
pin connector for use in the Intel Server Chassis SR1400 1U and SR2400 2U with backplane
installed, a 50-pin control panel connector used in Intel’s chassis with no backplane installed,
and a SSI standard 34-pin connector for use in third-party reference chassis. The following
tables provide the pinouts for each connector.
Table 91: 100-Pin Flex Cable Connector Pin-out (For Intel Chassis w/Backplane) (J2J1)
Pin
A1
Signal Name
Pin
B1
Signal Name
V_IO_VSYNC_BUFF_FP_L
GND
A2
V_IO_RED_CONN_FP
V_IO_GREEN_CONN_FP
V_IO_BLUE_CONN_FP
VIDEO_IN_USE
SPB_DTR_L
B2
V_IO_HSYNC_BUFF_FP_L
TEMP_PWM_R
SPB_DCD_L
A3
B3
A4
B4
A5
B5
SPB_CTS_L
A6
B6
SPB_SOUT_L
A7
SPB_RTS _L
B7
SPB_EN_L
A8
SPB_SIN
B8
LAN_ACT_B_L
A9
SPB_DSR
B9
LAN_LINKB_R
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
FP_NMI_BTN_L
GND
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
FP_CHASSIS_INTRU
PS_I2C_5VSB_SCL
PS_I2C_5VSB_SDA
LAN_ACT_A_L
FP_ID_BTN_L
P5V_STBY
FP_RST_BTN_L
HDD_FAULT_LED_L
FP_PWR_BTN_L
HDD_LED_ACT_L
P3V3
LAN_LINKA_R
FP_ID_LED_R
IPMB_I2C_5VSB_SCL
P5V_STBY
FP_STATUS_LED2_R
FP_STATUS_LED1_R
IPMB_I2C_5VSB_SDA
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Pin
A20
Signal Name
Pin
B20
Signal Name
FP_PWR_LED_L
GND
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
A41
A42
A43
A44
A45
A46
A47
A48
A49
A50
P5V_STBY
RST_IDE_L
FD_DSKCHG_L
FD_WPD_L
FD_TRK0_L
FD_WGATE_L
FD_DIR_L
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
B33
B34
B35
B36
B37
B38
B39
B40
B41
B42
B43
B44
B45
B46
B47
B48
B49
B50
RST_IDE_S_L
FD_HDSEL_L
FD_RDATA_L
FD_WDATA_L
FD_STEP_L
FD_MTR0_L
FD_DENSEL0
FD_INDEX_L
IDE_SDD_8
FD_DS0_L
GND
IDE_SDD_7
IDE_SDD_6
IDE_SDD_5
IDE_SDD_4
IDE_SDD_3
IDE_SDD_2
IDE_SDD_1
IDE_SDD_0
GND
IDE_SDD_9
IDE_SDD_10
IDE_SDD_11
IDE_SDD_12
IDE_SDD_13
IDE_SDD_14
IDE_SDD_15
IDE_SDDREQ
IDE_SDIOW_L
IDE_SDIOR_L
IDE_SIORDY
IRQ_IDE_S
IDE_SDDACK_L
IDE_SDA_1
IDE_SDA_0
IDE_SDCS1_L
IDE_SEC_HD_ACT_L
GND
IDE_SDA_2
IDE_SDCS3_L
FAN_SPEED_CNTL1
R_FAN_PRESENT
BB_LED_FAN5_R
BB_LED_FAN6_R
BB_LED_FAN7_R
BB_LED_FAN8_R
GND
FAN_TACH5
FAN_TACH6
FAN_TACH7
FAN_TACH8
FAN_SPEED_CNTL2
P5V_STBY
Table 92: 50-Pin Control Panel Connector (Intel Chassis w/No Backplane) (J1J2)
Pin#
1
Signal Name
PWR_LCD_5VSB
Pin #
2
Signal Name
PWR_LCD_5VSB
3
TP_J1H5_3
FP_STATUS_LED1_L
FP_STATUS_LED2_L
5VSTBY
4
HDD_LED_ACT_L
RST_IDE_L
5
6
7
8
5VSTBY
9
10
12
14
16
18
FP_PWR_LED_L
IPMB_I2C_5VSB_SDA
IPMB_I2C_5VSB_SCL
FP_PWR_BTN_L
HDD_FAULT_LED_L
11
13
15
17
3.3V
GND
FP_ID_LED_L
LAN_LINKB_L
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Pin#
19
Signal Name
Pin #
20
Signal Name
FP_RST_BTN_L
LAN_ACT_B_L
PS_I2C_5VSB_SDA
PS_I2C_5VSB_SCL
FP_CHASSIS_INTRU
LAN_LINKA_L
GND
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
GND
FP_ID_BTN_L
TP_J1H5_26
LAN_ACT_A_L
FP_NMI_BTN_L
SPB_DSR
SPB_EN_L
SPB_SOUT
SPB_CTS_L
SPB_DCD_L
TEMP_PWM_R
GND
SPB_SIN
SPB_RTS_L
SPB:DTR_L
VIDEO_IN_USE
V_IO_VSYNC_BUFF_FP_L
V_IO_HSYNC_BUFF_FP_L
V_IO_BLUE_CONN_FP
V_IO_GREEN_CONN_FP_L
V_IO_RED_CONN_FP_L
GND
GND
GND
GND
Table 93: Control Panel SSI Standard 34-Pin Header Pin-out
Pin
1
Signal Name
P5V
Pin
2
Signal Name
P5V_STBY
3
Key
4
P5V_STBY
5
FP_PWR_LED_L
P5V
6
FP_COOL_FLT_LED_R
P5V_STBY
7
8
9
HDD_LED_ACT_R
FP_PWR_BTN_L
GND
10
12
14
16
18
20
22
24
26
28
30
32
34
FP_STATUS_LED2_R
LAN_ACT_A_L
LAN_LINKA_L
11
13
15
17
19
21
23
25
27
29
31
33
Reset Button
GND
PS_I2C_5VSB_SDA
PS_I2C_5VSB_SCL
FP_CHASSIS_INTRU
LAN_ACT_B_L
LAN_LINKB_L
FP_SLP_BTN_L
GND
FP_NMI_BTN_L
Key
Key
P5V_STBY
FP_ID_LED_L
FP_ID_BTN_L
GND
P5V_STBY
FP_STATUS_LED1_R
P5V
FP_HDD_FLT_LED_R
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Control Panel Pinout
O
O
O
O
O
O
O
O
O
O
O
O
O
Power LED
Cool Fault
O
O
O
O
O
O
O
O
O
O
HDD LED
System Fault
Power Button
Reset Button
Sleep Button
LAN A Link / A
SMBus
Intruder
LAN B Link / A
NMI
O
O
O
O
O
O
O
O
ID LED
ID Button
Figure 25. 34-Pin SSI Compliant Control Panel Header
7.5 I/O Connectors
7.5.1
VGA Connector
The following table details the pin-out definition of the VGA connector.
Table 94: VGA Connector Pin-out
Pin
Signal Name
1
Red (analog color signal R)
2
Green (analog color signal G)
3
Blue (analog color signal B)
4
No connection
GND
5
6
GND
7
GND
8
GND
9
Fused VCC (+5V)
GND
10
11
No connection
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Pin
12
Signal Name
DDCDAT
13
14
15
HSYNC (horizontal sync)
VSYNC (vertical sync)
DDCCLK
7.5.2
NIC Connectors
The Server Board SE7520JR2 provides two RJ45 NIC connectors oriented side by side on the
back edge of the board. The pin-out for each connector is identical and is defined in the
following table:
Table 95: RJ-45 10/100/1000 NIC Connector Pin-out
Pin
Signal Name
1
2
LAN_MID0P
3
LAN_MID0N
4
LAN_MID1P
5
LAN_MID2P
6
LAN_MID2N
7
LAN_MID1N
8
LAN_MID3P
9
LAN_MID3N
10
11
12
13
14
15
16
P2V5_NIC
LAN_LINK_1000_L (LED)
LAN_LINK_100_L_R (LED)
LAN_ACT_L (LED)
LAN_LINK_L_R (LED)
GND
GND
7.5.3
SCSI Connectors
The Server Board SE7520JR2 provides two SCSI connectors, one for each channel of the
embedded LSI53C1030 SCSI controller. The external connector is routed to SCSI channel B, is
a high density connector, and is found on the back edge of the server board. The internal
connector is routed to SCSI channel A, is a standard 68 pin connector, and is located in the cut-
out on the edge of the server board. The pin-out for each connector is identical and is defined in
the following table.
Table 96: Internal/External 68-pin VHDCI SCSI Connector Pin-out
Pin#
1
Signal Name
+DB(12)
Signal Name
-DB(12)
Pin#
35
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Pin#
2
Signal Name
+DB(13)
Signal Name
-DB(13)
Pin#
36
3
+DB(14)
+DB(15)
+DB(P1)
+DB(0)
+DB(1)
+DB(2)
+DB(3)
+DB(4)
+DB(5)
+DB(6)
+DB(7)
+DB(P)
GROUND
GROUND
RESERVED
RESERVED
RESERVED
GROUND
+ATN
-DB(14)
-DB(15)
-DB(P1)
-DB(0)
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
4
5
6
7
-DB(1)
8
-DB(2)
9
-DB(3)
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
-DB(4)
-DB(5)
-DB(6)
-DB(7)
-DB(P)
GROUND
GROUND
RESERVED
RESERVED
RESERVED
GROUND
-ATN
GROUND
+BSY
GROUND
-BSY
+ACK
-ACK
+RST
-RST
+MSG
-MSG
+SEL
-SEL
+C/D
-C/D
+REQ
-REQ
+I/O
-I/O
+DB(8)
+DB(9)
+DB(10)
+DB(11)
-DB(8)
-DB(9)
-DB(10)
-DB(11)
7.5.4
ATA-100 Connector
The Server Board SE7520JR2 provides one legacy ATA-100 40-pin connector (J3K1). The pin-
out is defined in the following table. Its signals are not tied to the ATA functionality embedded
into the high-density 100-pin front panel connector. Each connector is configured to a separate
ATA port embedded in the ICH5-R.
Table 97: ATA-100 40-pin Connector Pin-out (J3K1)
Pin
Signal Name
Pin
Signal Name
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Pin
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Signal Name
RST_IDE_P_L
IDE_PDD_7
Pin
2
Signal Name
GND
1
3
4
IDE_PDD_8
IDE_PDD_9
IDE_PDD_10
IDE_PDD_11
IDE_PDD_12
IDE_PDD_13
IDE_PDD_14
IDE_PDD_15
KEY
5
IDE_PDD_6
IDE_PDD_5
IDE_PDD_4
IDE_PDD_3
IDE_PDD_2
IDE_PDD_1
IDE_PDD_0
GND
6
7
8
9
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
IDE_PDDREQ
IDE_PDIOW_L
IDE_PDIOR_L
IDE_PIORDY
IDE_PDDACK_L
IRQ_IDE_P
GND
GND
GND
GND
GND
Test Point
IDE_CBL_DET_P
IDE_PDA2
IDE_PDCS3_L
GND
IDE_PDA1
IDE_PDA0
IDE_PDCS1_L
IDE_PRI_HD_ACT_L
7.5.5
SATA Connectors
The Server Board SE7520JR2 provides two SATA (Serial ATA) connectors: SATA-0 (J1H1) and
SATA-1 (J1H5), for use with an internal SATA backplane. The pin configuration for each
connector is identical and is defined in the following table.
Table 98: SATA Connector Pin-out (J1H1 and J1H5)
Pin
1
Signal Name
GND1
2
3
4
5
6
7
8
9
S_ATA#_TX_P
S_ATA#_TX_N
GND2
S_ATA#_RX_N
S_ATA#_RX_P
GND3
GND4
GND5
7.5.6
Floppy Controller Connector
The following table details the pin-out of the 34-pin legacy floppy drive connector (J3K2). These
signals are common to those used in the high-density 100-pin Front Panel connector.
Concurrent use of these connectors is not supported.
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Table 99: Legacy 34-pin Floppy Drive Connector Pin-out (J3K2)
Pin
Signal Name
Pin
Signal Name
1
GND
2
FD_DENSEL0
3
GND
4
Test Point
5
KEY
6
FD_DENSEL1
FD_INDEX_L
FD_MTR0_L
FD_DS1_L
7
GND
8
9
GND
10
12
14
16
18
20
22
24
26
28
30
32
34
11
13
15
17
19
21
23
25
27
29
31
33
GND
GND
FD_DS0_L
GND
FD_MTR1_L
FD_DIR_L
Test Point
GND
FD_STEP_L
FD_WDATA_L
FD_WGATE_L
FD_TRK0_L
VCC
GND
GND
GND
Test Point
GND
FD_RDATA_L
FD_HDSEL_L
FD_DSKCHG_L
GND
GND
7.5.7
Serial Port Connectors
The Server Board SE7520JR2 provides one external RJ45 Serial B port and one internal 9-pin
Serial A header. The following tables define the pinouts for each.
Table 100: External RJ-45 Serial B Port Pin-out
Pin
1
Signal Name
RTS
Description
Request To Send
2
DTR
Data Terminal Ready
Transmit Data
3
TXD
4
GND
RI
Ground
5
Ring Indicate
6
RXD
Receive Data
7
DSR / DCD
CTS
Data Set Ready / Data Carrier Detect1
Clear To Send
8
Note:
1.
A jumper block on the server board will determine whether DSR or DCD is routed to
pin 7. The board will have the jumper block configured with DSR enabled at
production.
Table 101: Internal 9-pin Serial A Header Pin-out (J1A3)
Pin
Signal Name
1
DCD (carrier detect)
2
DSR (data set ready)
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3
4
5
6
7
8
9
RXD (receive data)
RTS (request to send)
TXD (Transmit data)
CTS (clear to send)
DTR (Data terminal ready)
RI (Ring Indicate)
Ground
7.5.8
Keyboard and Mouse Connector
Two stacked PS/2 ports are provided to support both a keyboard and a mouse. Either PS/2 port
can support a mouse or keyboard. The following table details the pin-out of the PS/2 connector.
Table 102: Stacked PS/2 Keyboard and Mouse Port Pin-out
Pin
1
Signal Name
Keyboard Data
2
Test point – keyboard
3
GND
4
Keyboard / mouse power
5
Keyboard Clock
6
Test point – keyboard / mouse
7
Mouse Data
8
Test point – keyboard / mouse
9
GND
10
11
12
13
14
15
16
17
Keyboard / mouse power
Mouse Clock
Test point – keyboard / mouse
GND
GND
GND
GND
GND
7.5.9
USB Connector
The following table details the pin-out of the external USB connectors found on the back edge of
the server board.
Table 103: External USB Connector Pin-out
Pin
Signal Name
1
USB_PWR
2
3
DATAL0 (Differential data line paired with DATAH0)
DATAH0 (Differential data line paired with DATAL0)
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4
GND
One internal 1x10 connector on the baseboard (J1F1) provides an option to support an
additional two USB 2.0 ports. This connector is used in both the Intel Server Chassis SR1400
1U and SR2400 2U bringing USB support to the control panel. The pin-out of the connector is
detailed in the following table.
Table 104: Internal 1x10 USB Connector Pin-out (J1F1)
Pin
Signal name
1
USB_PWR(2)
2
USB_P2_L
USB_P2
Ground
3
4
5
Ground
6
USB_PWR(3)
USB_P3_L
USB_P3
Ground
7
8
9
10
Ground
For third party reference chassis, an internal 2x5 connector (J1G1) is supplied to provide an
additional two USB ports. The pinout for this connector is found in the following table.
Table 105: Internal 2x5 USB Connector (J1G1)
Pin
Signal name
1
USB_PWR(5)
2
USB_PWR(4)
USB_BCK4_L
USB_BCK5_L
USB_BCK4
USB_BCK5
Ground
3
4
5
6
7
8
Ground
9
No Connect
No Connect
10
7.6 Fan Headers
The baseboard provides for several different system fan headers for use in Intel chassis as well
as custom and third party reference chassis.
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There are two SSI compliant processor fan headers, CPU1 (J7F1) and CPU2 (J5F2), which are
not fan speed controlled. They are powered by a constant +12V. The pinout for these two
connector is defined in the following table.
Table 106: CPU1/CPU2 Fan Connector Pin-out (J5F2, J7F1)
Pin
1
Signal Name
Fan Tach
Type
Out
Description
FAN_TACH signal is connected to the BMC to monitor the FAN speed
2
3
+12V
Power
GND
Power Supply 12V
Ground
GROUND is the power supply ground
The fan headers at J3K3 and J3K6 have fan speed control. Fan control is performed by two
pulse width modulator (PWM) outputs on the LM93. The mBMC initializes the LM93 to control
fan speeds based on temperature measurements according to a built-in table. The table itself is
loaded as part of the SDR package according to which system configuration is used.
The 2x12 fan header (J3K6) is used to control system fans in both the Intel Server Chassis
SR1400 and SR2400. The pinout for this connector is found in the following table.
Table 107: Intel Server Chassis Fan Header Pin-out (J3K6)
Pin
Signal Name
Type
Description
1
BB_FAN_LED4_R
IN
IN
IN
IN
2
BB_FAN_LED2_R
BB_FAN_LED3_R
BB_FAN_LED1_R
FAN_TACH8
FAN_TACH4
FAN_TACH7
FAN_TACH3
FAN_TACH6
FAN_TACH2
FAN_TACH5
FAN_TACH1
GROUND
3
4
5
OUT
FAN_TACH signal to monitor the FAN speed
FAN_TACH signal to monitor the FAN speed
FAN_TACH signal to monitor the FAN speed
FAN_TACH signal to monitor the FAN speed
FAN_TACH signal to monitor the FAN speed
FAN_TACH signal to monitor the FAN speed
FAN_TACH signal to monitor the FAN speed
FAN_TACH signal to monitor the FAN speed
6
OUT
7
OUT
8
OUT
9
OUT
10
11
12
13
14
15
16
17
18
19
20
21
22
23
OUT
OUT
OUT
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
FAN_SPEED_CNTL_2 IN
FAN_SPEED_CNTL_1 IN
FAN_SPEED_CNTL_2 IN
FAN_SPEED_CNTL_2 IN
Power supplied through fan speed control circuitry
Power supplied through fan speed control circuitry
Power supplied through fan speed control circuitry
Power supplied through fan speed control circuitry
BB_FAN_LED7_R
BB_FAN_LED5_R
BB_FAN_LED8_R
IN
IN
IN
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24
BB_FAN_LED6_R
IN
The 1x3 fan header (J3K3) is used to control a system fan in the Intel Server Chassis SR1400.
The pinout for this connector is found in the following table.
Table 108: 3-Pin Fan Speed Controlled Fan Header (J3K3)
Pin
1
Signal Name
Fan Tach
Type
Out
Description
FAN_TACH signal is connected to the BMC to monitor the FAN speed
2
3
Fan_Speed_Cntl1 Power Power supplied through fan speed control circuitry
Ground GND GROUND is the power supply ground
7.7 Misc. Headers and Connectors
7.7.1
Chassis Intrusion Header
A 1x2 pin header (J1A1) is used in chassis that support a chassis intrusion switch. This header
is monitored by the mBMC. The pinout definition for this header is found in the following table.
Table 109: Chassis Intrusion Header (J1A1)
Pin
Signal Name
Description
1
FP_Chassis_Intr
2
Ground
7.7.2
Hard Drive Activity LED Header
A 1x2 pin header (J1A2) provides hard drive controller add-in cards an interface to the control
panel Hard Drive Activity LED. The pinout definition for this header is found in the following
table.
Table 110: Hard Drive Activity LED Header(J1A2)
Pin
1
Signal Name
+3.3V
FP_LED_L
Description
2
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7.8 Jumper Blocks
The baseboard has several jumper blocks used to configure or enable/disable various features.
This section describes the usage and settings of each.
Table 111: Jumper Block Definitions
Reference
ID
J1H2 (A)
Name
Description
Clears CMOS settings
Forces the system to boot into BIOS
Settings
CMOS Clear
CMOS Clear by BMC – Pins 1-2 (Default)
CMOS Clear Force Erase – Pins 2-3
Normal Boot - Pins 1-2 (Default)
Enabled – Pins 2-3
J1H2 (B)
BIOS
Recovery Boot Recovery mode. A bootable Recovery
BIOS Floppy disk must be in Drive A for
this operation.
J1H2 (C)
J1A4
Password
Clear
Clears Administrator and User
passwords as set in BIOS Setup
Password Clr Protect – Pins 1-2 (Default)
Password Clr Erase – Pins 2-3
Rolling BIOS
Configuration
Sets the BIOS flash device to boot from Normal Operation – Pins 1-2 (Default)
either the upper or lower banks of the
flash device.
Force to lower bank – Pins 2-3
J7A1
Serial B
Configuration
Configures Pin 7 of the RJ45 Serial B
port to support either a DCD or DSR
signal
DCD Select –Pins 1-3
DSR Select – Pins 2-4 (Default)
J1H2
C
CMOS Clear
BIOS Recovery Boot
Password Clear
B
A
1
2
3
Figure 26. System Configuration (J1H2) Jumper Block Settings
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Design and Environmental Specifications
Intel® Server Board SE7520JR2
8. Design and Environmental Specifications
8.1 Server Board SE7520JR2 Design Specification
Operation of the Server Board SE7520JR2 at conditions beyond those shown in the following
table may cause permanent damage to the system. Exposure to absolute maximum rating
conditions for extended periods may affect system reliability.
Table 112: Board Design Specifications
Operating Temperature
Non-Operating Temperature
DC Voltage
5º C to 50º C 1 (32º F to 131º F)
-40º C to 70º C (-40º F to 158º F)
± 5% of all nominal voltages
Trapezoidal, 50 g, 170 inches/sec
24 inches
Shock (Unpackaged)
Shock (Packaged) (≥ 40 lbs to < 80 lbs)
Vibration (Unpackaged)
Note:
5 Hz to 500 Hz 3.13 g RMS random
1.
Chassis design must provide proper airflow to avoid exceeding Intel Xeon processor
maximum case temperature.
Disclaimer Note: Intel Corporation server boards contain a number of high-density VLSI and
power delivery components that need adequate airflow to cool. Intel ensures through its own
chassis development and testing that when Intel server building blocks are used together, the
fully integrated system will meet the intended thermal requirements of these components. It is
the responsibility of the system integrator who chooses not to use Intel developed server building
blocks to consult vendor datasheets and operating parameters to determine the amount of air
flow required for their specific application and environmental conditions. Intel Corporation
cannot be held responsible, if components fail or the server board does not operate correctly
when used outside any of their published operating or non-operating limits.
8.2 Power Supply Requirements
Note: The information provided in this section was derived from Intel’s 500W power supply
specification designed for use in the Server Chassis SR1400. The figures provided and the values
in the tables are meant for reference purposes only and are based on a 1U rack server
configuration. Variations in system configurations may produce different values.
8.2.1
Output Connectors
Listed or recognized component appliance wiring material (AVLV2), CN, rated min 105°C,
300Vdc shall be used for all output wiring.
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Design and Environmental Specifications
Note: The following diagram shows the power harness spec drawing as defined for use in Intel
server chassis. Reference chassis designs may or may not require all of the connectors shown
and different wiring material may be needed to meet specific platform requirements.
20.0
(0.8")
P
1
P
4
P
3
P
7
P
2
30.0
(1.2")
7
110 Ref
(4.3")
210.0
(8.27")
400.0
(15.7")
100.0
(3.9")
240.0
(9.45")
325.0
(12.8")
5
8
50
3
(2")
Figure 27. Power Harness Specification Drawing
Notes:
1. ALL DIMENSIONS ARE IN MM
2. ALL TOLERANCES ARE +10 MM / -0 MM
3. INSTALL 1 TIE WRAP WITHIN 12MM OF THE PSU CAGE
4. MARK REFERENCE DESIGNATOR ON EACH CONNECTOR
5. TIE WRAP EACH HARNESS AT APPROX. MID POINT
6. TIE WRAP P1 WITH 2 TIES AT APPROXIMATELY 15M SPACING.
7. P4 HARNESS IS ARESERVED FOR THE FUTURE ONLY, NO
8. PLEMENTATION IS NEEDED CURRENTLY.
9. TIE WRAP P1 AND P2 TOGETHER AT THIS POINT.
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P1 Main Power Connector
Intel® Server Board SE7520JR2
•
Connector housing: 24-pin Molex* Mini-Fit Jr. 39-01-2245 or equivalent
•
Contact: Molex Mini-Fit, HCS, female, crimp 44476 or equivalent
Table 113: P1 Main Power Connector
Pin
1
SIgnal
+3.3 VDC
18 AWG Color
Orange
Pin
13
SIgnal
+3.3 VDC
18 AWG Color
Orange
2
+3.3 VDC
COM
Orange
Black
14
15
16
17
18
19
20
21
22
23
24
-12 VDC
COM
Blue
3
Black
Green
Black
Black
Black
N.C.
4
+5 VDC*
COM
Red
PSON#
COM
5
Black
6
+5 VDC
COM
Red
COM
7
Black
COM
8
PWR OK
5VSB
Gray
Reserved
+5 VDC
+5 VDC
+5 VDC
COM
9
Purple
Red
10
11
12
+12V3
Yellow/Blue Stripe
Yellow/Blue Stripe
Orange
Red
+12V3
Red
+3.3 VDC
Black
Notes:
ƒ
ƒ
5V Remote Sense Double Crimped into pin 4.
3.3V Locate Sense Double Crimped into pin 2.
P2 Processor Power Connector
•
Connector housing: 8-pin Molex 39-01-2085 or equivalent
•
Contact: Molex 44476-1111 or equivalent
Table 114: P2 Processor Power Connector
Pin
1
SIgnal
COM
18 AWG Color
Black
Pin
5
SIgnal
+12V1
18 AWG Color
Yellow
2
3
4
COM
COM
COM
Black
Black
Black
6
7
8
+12V1
+12V2
+12V2
Yellow
Yellow/Black Stripe
Yellow/Black Stripe
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P3 Power Signal Connector
Design and Environmental Specifications
•
Connector housing: 5-pin Molex 50-57-9705 or equivalent
•
Contacts: Molex 16-02-0087 or equivalent
Table 115: P3 Baseboard Signal Connector
Pin
SIgnal
24 AWG Color
1
I2C Clock
White/Green Stripe
2
3
4
5
I2C Data
Alert#
White/Yellow Stripe
White
COM
Black
3.3RS
White/Brown Stripe
P4 Peripheral Connectors
•
Connector housing: AMP V0 P/N is 770827-1 or equivalent
•
Contact: Amp 61314-1 contact or equivalent
Table 116: Peripheral Power Connectors
Pin
SIgnal
18 AWG Color
1
+12 V3
Yellow/Blue Stripe
2
3
4
COM
Black
Black
Red
COM
+5 VDC
P7 Hard Drive Back Plane Power Connector
•
Connector housing: 6-pin Molex Mini-Fit Jr. PN# 39-01-2065 or equivalent
•
Contact: Molex Mini-Fit, HCS, female, crimp 44476 or equivalent
Table 117: P7 Hard Drive Power Connector
Pin
1
Signal
Ground
18 AWG Color
Black
2
3
4
5
6
Ground
5V
Black
Red
+12V3
+12V3
5VSB
Yellow/Blue Stripe
Yellow/Blue Stripe
Purple
8.2.2
Grounding
The ground of the pins of the power supply output connector provides the power return path.
The output connector ground pins shall be connected to safety ground (power supply
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enclosure). This grounding must be designed to ensure passing the maximum allowed
Common Mode Noise levels.
The power supply shall be provided with a reliable protective earth ground. All secondary
circuits shall be connected to protective earth ground. Resistance of the ground returns to
chassis shall not exceed 1.0 mΩ. This path may be used to carry DC current.
8.2.3
Remote Sense
The power supply has remote sense return (ReturnS) to regulate out ground drops for all output
voltages; +3.3V, +5V, +12V1, +12V2, +12V3, -12V, and 5VSB. The power supply uses remote
sense (3.3VS) to regulate out drops in the system for the +3.3V output. The +5V, +12V1,
+12V2, +12V3, –12V, and 5VSB outputs only use remote sense referenced to the ReturnS
signal.
The remote sense input impedance to the power supply must be greater than 200Ω on 3.3VS,
5VS. This is the value of the resistor connecting the remote sense to the output voltage internal
to the power supply. Remote sense must be able to regulate out a minimum of 200mV drop on
the +3.3V output. The remote sense return (ReturnS) must be able to regulate out a minimum of
200mV drop in the power ground return. The current in any remote sense line shall be less than
5mA to prevent voltage sensing errors.
The power supply must operate within specification over the full range of voltage drops from the
power supply’s output connector to the remote sense points.
8.2.4
Standby Outputs
The 5VSB output shall be present when an AC input greater than the power supply turn on
voltage is applied.
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8.2.5
Voltage Regulation
The power supply output voltages must stay within the following voltage limits when operating at
steady state and dynamic loading conditions. These limits include the peak-peak ripple/noise.
All outputs are measured with reference to the return remote sense signal (ReturnS). The 5V,
12V1, 12V2, +12V3, –12V and 5VSB outputs are measured at the power supply connectors
referenced to ReturnS. The +3.3V is measured at it remote sense signal (3.3VS) located at the
signal connector.
Table 118: Voltage Regulation Limits
Parameter
+ 3.3V
Tolerance
- 5% / +5%
Minimum
+3.14
Nominal
+3.30
Maximum
+3.46
Units
Vrms
+ 5V
- 5% / +5%
- 5% / +5%
- 5% / +5%
- 5% / +5%
- 5% / +9%
- 5% / +5%
+4.75
+5.00
+5.25
Vrms
Vrms
Vrms
Vrms
Vrms
Vrms
+ 12V1
+ 12V2
+ 12V3
- 12V
+11.40
+11.40
+11.40
-11.40
+4.75
+12.00
+12.00
+12.00
-12.00
+5.00
+12.60
+12.60
+12.60
-13.08
+5.25
+ 5VSB
8.2.6
Dynamic Loading
The output voltages shall remain within limits specified for the step loading and capacitive
loading specified in the table below. The load transient repetition rate shall be tested between
50Hz and 5kHz at duty cycles ranging from 10%-90%. The load transient repetition rate is only
a test specification. The ∆ step load may occur anywhere within the MIN load to the MAX load
conditions.
Table 119: Transient Load Requirements
Output
Load Slew Rate
Test Capacitive Load
∆ Step Load Size
(See note 2)
+3.3V
+5V
5.0A
0.25 A/µsec
0.25 A/µsec
0.25 A/µsec
0.25 A/µsec
250 µF
4.0A
20.0A
0.5A
400 µF
2200 µF 1, 3
12V1+12V2+12V3
+5VSB
20 µF
Notes
1. Step loads on each 12V output may happen simultaneously.
2. For Load Range 2 (light system loading), the tested step load size should be 60% of those listed.
3. The +12V should be tested with 1000µF evenly split between the three +12V rails.
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8.2.7
Capacitive Loading
The power supply shall be stable and meet all requirements with the following capacitive
loading ranges.
Table 120: Capacitve Loading Conditions
Output
+3.3V
MIN
MAX
6,800
Units
250
400
µF
µF
µF
µF
µF
+5V
4,700
+12V(1, 2, 3)
-12V
11,000
350
500 each
1
+5VSB
350
20
8.2.8
Closed Loop Stability
The power supply shall be unconditionally stable under all line/load/transient load conditions
including capacitive load ranges. A minimum of: 45 degrees phase margin and -10dB-gain
margin is required. Closed-loop stability must be ensured at the maximum and minimum loads
as applicable.
8.2.9
Common Mode Noise
The Common Mode noise on any output shall not exceed 350mV pk-pk over the frequency
band of 10Hz to 30MHz.
8.2.10
Ripple / Noise
The maximum allowed ripple/noise output of the power supply is defined in the following table.
This is measured over a bandwidth of 0Hz to 20MHz at the power supply output connectors.
Table 121: Ripple and Noise
+3.3V
+5V
+12V1/2
-12V
+5VSB
50mVp-p
50mVp-p
120mVp-p
120mVp-p
50mVp-p
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8.2.11
Soft Starting
The power supply shall contain control circuit that provides monotonic soft start for its outputs
without overstress of the AC line or any power supply components at any specified AC line or
load conditions. There is no requirement for rise time on the 5V Standby but the turn on/off shall
be monotonic.
8.2.12
Zero Load Stability Requirements
When the power subsystem operates in a no load condition, it does not need to meet the output
regulation specification, but it must operate without any tripping of over-voltage or other fault
circuitry. When the power subsystem is subsequently loaded, it must begin to regulate and
source current without fault. Each output voltage may not be internally diode isolated. At the
same time failure in the primary side of one power supply doesn’t cause the other to shut down.
8.2.13
Timing Requirements
These are the timing requirements for the power supply operation. The output voltages must
rise from 10% to within regulation limits (Tvout_rise) within 5 to 70ms, except for 5VSB - it is
allowed to rise from 1.0 to 70ms. The +3.3V, +5V and +12V output voltages should start to rise
approximately at the same time. All outputs must rise monotonically. The +5V output needs
to be greater than the +3.3V output during any point of the voltage rise. The +5V output must
never be greater than the +3.3V output by more than 2.25V. Each output voltage shall reach
regulation within 50ms (Tvout_on) of each other during turn on of the power supply. Each output
voltage shall fall out of regulation within 400msec (Tvout_off) of each other during turn off. The
following figures show the timing requirements for the power supply being turned on and off via
the AC input, with PSON held low and the PSON signal, with the AC input applied.
Table 122: Output Voltage Timing
Item
Tvout_rise
Description
Output voltage rise time from each main output.
Minimum
5.0 *
Maximum
70 *
Units
msec
Tvout_on
T vout_off
Note:
All main outputs must be within regulation of each
other within this time.
msec
50
All main outputs must leave regulation within this
time.
msec
400
The 5VSB output voltage rise time shall be from 1.0ms to 25.0ms
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Vout
10%
Vout
V1
V2
V3
Tvout_off
Tvout
rise
Tvout_on
Figure 28. Output Voltage Timing
Table 123: Turn On/Off Timing
Item
Tsb_on_delay
Description
Minimum
Maximum
1500
Units
msec
Delay from AC being applied to 5VSB being within regulation.
T ac_on_delay
Delay from AC being applied to all output voltages being
within regulation.
msec
2500
Tvout_holdup
Time all output voltages stay within regulation after loss of
AC.
msec
21
Tpwok_holdup
Delay from loss of AC to de-assertion of PWOK
Delay from PSON# active to output voltages within regulation
limits.
msec
msec
20
5
Tpson_on_delay
400
T pson_pwok
Tpwok_on
Delay from PSON# deactive to PWOK being de-asserted.
msec
msec
50
Delay from output voltages within regulation limits to PWOK
asserted at turn on.
100
1
1000
T pwok_off
Tpwok_low
Tsb_vout
Delay from PWOK de-asserted to output voltages (3.3V, 5V,
12V, -12V) dropping out of regulation limits.
msec
msec
msec
msec
Duration of PWOK being in the de-asserted state during an
off/on cycle using AC or the PSON signal.
100
50
70
Delay from 5VSB being in regulation to O/Ps being in
regulation at AC turn on.
1000
T5VSB_holdup
Time the 5VSB output voltage stays within regulation after
loss of AC.
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AC Input
Tvout_holdup
Vout
Tpwok_low
TAC_on_delay
Tpwok_off
Tsb_on_delay
Tpwok_on
Tsb_on_delay
PWOK
Tpwok_off
Tpwok_on
Tpwok_holdup
Tpson_pwok
5VSB
PSON
Tsb_vout
T5VSB_holdup
Tpson_on_delay
AC turn on/off cycle
PSON turn on/off cycle
Figure 29. Turn On/Off Timing (Power Supply Signals)
8.2.14
Residual Voltage Immunity in Standby Mode
The PS supply should be immune to any residual voltage placed on its outputs (Typically a
leakage voltage through the system from standby output) up to 500mV. There shall be no
additional heat generated, nor stress of any internal components with this voltage applied to any
individual output, and all outputs simultaneously. It also should not trip the protection circuits
during turn on.
The residual voltage at the power supply outputs for no load condition shall not exceed 100mV
when AC voltage is applied.
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8.3 Product Regulatory Compliance
8.3.1
Product Safety Compliance
The Server Board SE7520JR2 complies with the following safety requirements:
•
•
•
•
•
•
•
•
UL60950 – CSA 60950(USA / Canada)
EN60950 (Europe)
IEC60950 (International)
CB Certificate & Report, IEC60950 (report to include all country national deviations)
GOST R 50377-92 – Listed on one System License (Russia)
Belarus License – Listed on System License (Belarus)
CE - Low Voltage Directive 73/23/EEE (Europe)
IRAM Certification (Argentina)
8.3.2
Product EMC Compliance – Class A Compliance
Note: Legally the product is required to comply with Class A emission requirements as it is
intended for a commercial type market place. Intel targets 10db margin to Class A Limits
The Server Board SE7520JR2 has been has been tested and verified to comply with the
following electromagnetic compatibility (EMC) regulations when installed a compatible Intel®
host system. For information on compatible host system(s) refer to Intel’s Server Builder Web
site or contact your local Intel representative.
•
•
•
•
•
•
•
•
•
•
•
FCC /ICES-003 - Emissions (USA/Canada) Verification
CISPR 22 – Emissions (International)
EN55022 - Emissions (Europe)
EN55024 - Immunity (Europe)
CE – EMC Directive 89/336/EEC (Europe)
AS/NZS 3548 Emissions (Australia / New Zealand)
BSMI CNS13438 Emissions (Taiwan)
GOST R 29216-91 Emissions - Listed on one System License (Russia)
GOST R 50628-95 Immunity –Listed on one System License (Russia)
Belarus License – Listed on one System License (Belarus)
RRL MIC Notice No. 1997-41 (EMC) & 1997-42 (EMI) (Korea)
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8.3.3
Certifications / Registrations / Declarations
•
•
•
•
•
•
•
•
•
•
UL Certification (US/Canada)
CE Declaration of Conformity (CENELEC Europe)
FCC/ICES-003 Class A Attestation (USA/Canada)
C-Tick Declaration of Conformity (Australia)
MED Declaration of Conformity (New Zealand)
BSMI Certification (Taiwan)
GOST – Listed on one System License (Russia)
Belarus – Listed on one System License (Belarus)
RRL Certification (Korea)
Ecology Declaration (International)
8.3.4
Product Regulatory Compliance Markings
This product is marked with the following Product Certification Markings:
Table 124: Product Certification Markings
Regulatory Compliance Country
Marking
UL Mark
USA/Canada
CE Mark
Europe
USA
FCC Marking (Class A)
EMC Marking (Class A)
BSMI Marking (Class A)
Canada
Taiwan
CANADA ICES-003 CLASS A
CANADA NMB-003 CLASSE A
RRL MIC Mark
Korea
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8.4 Electromagnetic Compatibility Notices
8.4.1
FCC (USA)
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
For questions related to the EMC performance of this product, contact:
Intel Corporation
5200 N.E. Elam Young Parkway
Hillsboro, OR 97124-6497
1-800-628-8686
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
•
•
•
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and the receiver.
Connect the equipment to an outlet on a circuit other than the one to which the receiver is
connected.
•
Consult the dealer or an experienced radio/TV technician for help.
Any changes or modifications not expressly approved by the grantee of this device could void
the user’s authority to operate the equipment. The customer is responsible for ensuring
compliance of the modified product.
Only peripherals (computer input/output devices, terminals, printers, etc.) that comply with FCC
Class A or B limits may be attached to this computer product. Operation with noncompliant
peripherals is likely to result in interference to radio and TV reception.
All cables used to connect to peripherals must be shielded and grounded. Operation with
cables, connected to peripherals, that are not shielded and grounded may result in interference
to radio and TV reception.
8.4.2
Industry Canada (ICES-003)
Cet appareil numérique respecte les limites bruits radioélectriques applicables aux appareils
numériques de Classe A prescrites dans la norme sur le matériel brouilleur: “Apparelis
Numériques”, NMB-003 édictee par le Ministre Canadian des Communications.
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This digital apparatus does not exceed the Class A limits for radio noise emissions from digital
apparatus set out in the interference-causing equipment standard entitled: “Digital Apparatus,”
ICES-003 of the Canadian Department of Communications.
8.4.3
Europe (CE Declaration of Conformity)
This product has been tested in accordance too, and complies with the Low Voltage Directive
(73/23/EEC) and EMC Directive (89/336/EEC). The product has been marked with the CE Mark
to illustrate its compliance.
8.4.4
Taiwan Declaration of Conformity (BSMI)
The BSMI Certification Marking and EMC warning is located on the outside rear area of
the product.
8.4.5
Korean Compliance (RRL)
English translation of the notice above:
Type of Equipment (Model Name): On License and Product
Certification No.: On RRL certificate. Obtain certificate from local Intel representative
Name of Certification Recipient: Intel Corporation
Date of Manufacturer: Refer to date code on product
Manufacturer/Nation: Intel Corporation/Refer to country of origin marked on product
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Miscellaneous Board Information
Intel® Server Board SE7520JR2
9. Miscellaneous Board Information
9.1 Updating the System Software
To ensure your Server Board SE7520JR2 has the latest board fixes, it is highly recommended
to load the latest system software. These include System BIOS, mBMC firmware, and
FRUSDR Utility. It may also include Intel Management Module (IMM) BMC Firmware (if
installed) and Hot Swap Controller (HSC) firmware if the baseboard is installed into an Intel
server chassis with a backplane. The latest system software for the Server Board SE7520JR2
can be downloaded from the following Intel web site:
http://support.intel.com/support/motherboards/server/se7520jr2/
You can use the Server Menu in the <F2> BIOS Utility to verify what versions of system
software are installed on your server. If you determine that an update is necessary, the system
software should be updated in the following order:
•
•
•
•
•
HSC firmware (If Applicable)
mBMC Firmware
IMM BMC Firmware (If Applicable)
FRUSDR Utility
System BIOS
It is highly recommended to read the README.TXT file that accompanies each update package
for complete install instructions and release notes before attempting to update the system
software onto your server board.
9.2 Programming FRU and SDR Data
Regardless of which platform management option is being used, On-board Platform
Instrumentation or Intel Management Module, the baseboard must have the proper Sensor Data
Records (SDR) and Field Replaceable Unit (FRU) data programmed to the board.
The FRUSDR Update Utility is an application used to program the platform management sub-
system to monitor the proper platform sensors. This application is provided on the Intel Server
Deployment Toolkit CDROM that comes with the baseboard or can be downloaded from the
following Intel Website:
http://support.intel.com/support/motherboards/server/se7520jr2/
The FRUSDR Update Utility should be run prior to loading any OS or Server Management
Software. The FRUSDR Update Utility determines which chassis the baseboard is integrated
into, which FRUs are present, and programs the Platform Management Sub-system to monitor
the proper platform sensors accordingly. The FRUSDR Update Utility must be run when the
board is first integrated into a platform and must be run when the system configuration is
changed as follows:
•
Adding/Removing an IMM
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•
•
Replacing a bad baseboard
Adding/Removing a Redundancy Feature (IMM Systems Only)
o
o
Redundant Power Supplies
Redundant Fans
•
Adding/Removing a CPU fan (IMM Systems Only)
Failure to run the FRUSDR Update Utility may cause the platform management sub-system to
report false errors causing your platform to operate erratically.
Note: It is highly recommended that you update your Server Board SE7520JR2 with the latest
system software, including the FRUSDR Update Utility. These can be downloaded from the
following Intel web site: http://support.intel.com/support/motherboards/server/se7520jr2/
9.3 Clearing CMOS
Depending on which System Management level is used on the server, there are three possible
methods that can be used to clear the system CMOS:
•
System Configuration Jumper Block J1H2 (A) - CMOS Clear Jumper - Supported with all
management levels
•
•
Control Panel CMOS clear sequence (IMM Professional and Advanced system only)
CMOS Clear state asserted via BMC CMOS Clear Options command (allows remote clear
operation) (Professional and Advanced systems Only)
9.3.1
CMOS Clear Using J1H2 Jumper Block
All three management levels support clearing the CMOS using by moving the CMOS Clear
jumper of the System Config jumper block (J1H2- A) from the default position pins 1-2 to pin
position 2-3. This method requires the following procedure to be followed:
1. The power be removed from the system
2. The J1H2 jumper is moved
3. The system is rebooted.
4. BIOS Setup options are saved
5. System is powered down and AC is removed
6. Jumper J1H2 is moved back to default position
7. AC is restored
8. System is rebooted.
9.3.2
CMOS Clear using Control Panel
In systems configured with an Intel Management Module, Professional or Advanced, CMOS can
be cleared using buttons on the system Control Panel that will both assert the BMC CMOS
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Clear state and power the system up. This feature can be enabled or disabled via the CMOS
Clear Options command.
The following sequence of events must occur to invoke the Control Panel CMOS Clear feature.
1. Standby power must be on, system power must be off, and the feature enabled.
2. The control panel reset button must be pressed and held for at least 4 seconds
3. With the control panel reset button still pressed, the control panel power button must be
pressed
The IMM Sahalee BMC produces a single beep through the system speaker to confirm the
CMOS clear button sequence.
The Sahalee BMC does not assert the CMOS Clear hardware signal. BIOS checks for BMC
CMOS Clear state (using the CMOS Clear Options command) at each boot to determine if the
Sahalee BMC is requesting a CMOS Clear operation. The BMC CMOS Clear state remains
active until one of the following events occurs:
It is forced off using a CMOS Clear Options command (this is the normal operational
case, by BIOS).
The reset button is pressed.
The power button is pressed and released.
The system is powered off.
9.4 BIOS Recovery Operation
The BIOS Recovery Operation should be attempted if for any reason the BIOS gets corrupted
causing the system to hang at POST generating a CMOS error. Should the system exhibit
POST hangs due to BIOS corruption, you should:
Option 1) cycle power.
This option will perform 1 of 2 possible operations. The reboot may clear possible BIOS
corruption with the Primary BIOS image and the system will boot normally. If the Primary BIOS
image is non-correctable, the system will perform an Auto Recovery which loads the secondary
or backup BIOS image. If this option is not successful and your system continues to exhibit
CMOS corruption errors, you can attempt option 2.
Option 2)
•
Obtain BIOS Update Package From the following Intel Web Site:
:http://support.intel.com/support/motherboards/server/se7520jr2/
•
•
•
•
Turn off the system
Verify the jumper on jumper block J1A4 is set to Pins 1-2.
Build Recovery Storage Media using files compressed in the RECOVERY.ZIP file
Recovery from USB Disk-on-key or other large media
o
Prepare a formatted and bootable storage media device such as a USB
DISK_ON_KEY.
o
Copy AMIBOOT.ROM to it.
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•
•
Recovery from multiple floppy disks.
o
o
o
Prepare 2 blank disks.
The first disk(disk0) must be made bootable
Copy amiboot.000 to disk0, and amiboot.001 to disk1.
Execute BIOS Recovery
o
set Recovery Boot Jumper by moving jumper J1H2 row B from Pins 1-2 to Pins
2-3
o
o
o
Insert the recovery media to the appropriate drive or USB interface.
Power on system
The System will automatically boot to the media and start the BIOS recovery
operation.
o
o
o
During multi-disk recovery operation, system will beep (1sec) continuously
to notify user to insert disk1
When the update has completed, the system will beep 4 times, followed by an
endless beep.
o
o
Turn off the system and unplug it.
set jumper J1H2 back to Normal mode J1H2 B(1-2).
•
Recovery operation complete.
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Appendix A: Integration and Usage Tips
Appendix A: Integration and Usage Tips
The following Integration and Usage Tips are provided to assist with answering miscellaneous
questions about the Server Board SE7520JR2 or as a guide to assist with troubleshooting
common errors.
•
The use of DDR2 - 400 MHz or DDR - 266/333 MHz DIMMs is dependant on which board
SKU is used. DDR-2 DIMMs cannot be used on a board designed to support DDR. DDR
DIMMs cannot be used on boards designed to support DDR-2
•
DDR-266 & DDR-333 DIMM population rules are as follows:
A. DIMM banks must be populated in order starting with the slots furthest from MCH
B. Single rank DIMMs must be populated before dual rank DIMMs
C. A maximum of four DIMMs can be populated when all four DIMMs are dual rank DDR-
333 DIMMs.
•
•
DDR2-400 DIMM population rules are as follows:
A. DIMMs banks must be populated in order starting with the slots furthest from MCH
B. Dual rank DIMMs are populated before single rank DIMMs
C. A maximum of four DIMMs can be populated when all four DIMMs are dual rank DDR2-
400 DIMMs
On the Server Board SE7520JR2, when using all dual rank DDR-333 or DDR2-400 DIMMs,
a total of four DIMMs can be populated. Configuring more than four dual rank DDR-333 or
DDR2-400 DIMMs will result in the BIOS generating a memory configuration error
•
•
•
•
The DIMM Sparing feature requires that the spare DIMM be at least the size of the largest
primary DIMM in use
It is possible for a Memory RASUM feature to be initiated without notification that the action
has occurred when using standard on-board platform instrumentation
A ZCR card is only supported on the full-height riser slot. When installing the card, it MUST
be populated in the PCI-X add-in slot furthest from the baseboard.
The Server Board SE7520JR2 has support for Zero Channel RAID (ZCR) which follows the
RUBI2 standard. It will not have support for zero channel RAID cards that follow the
RADIOS standard.
•
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Glossary
Intel® Server Board SE7520JR2
Glossary
This appendix contains important terms used in the preceding chapters. For ease of use,
numeric entries are listed first (e.g., “82460GX”) with alpha entries following (e.g., “AGP 4x”).
Acronyms are then entered in their respective place, with non-acronyms following.
Term
ACPI
Definition
Advanced Configuration and Power Interface
Application Processor
AP
APIC
ASIC
BIOS
BIST
BMC
Bridge
BSEL
BSP
Advanced Programmable Interrupt Control
application specific integrated circuit
Basic input/output system
Built-in self test
Sahalee Baseboard Management Controller
Circuitry connecting one computer bus to another, allowing an agent on one to access the other.
Bootstrap processor
8-bit quantity.
byte
CBC
Chassis bridge controller. A microcontroller connected to one or more other CBCs. Together they
bridge the IPMB buses of multiple chassis.
CEK
Common Enabling Kit
CHAP
CMOS
Challenge Handshake Authentication Protocol
In terms of this specification, this describes the PC-AT compatible region of battery-backed 128 bytes
of memory, which normally resides on the baseboard.
DPC
EEPROM
EHCI
EMP
EPS
FMB
FMC
FMM
FRB
FRU
FSB
GB
Direct Platform Control
Electrically erasable programmable read-only memory
Enhanced Host Controller Interface
Emergency management port.
External Product Specification
Flexible Mother Board
Flex Management Connector
Flex Management Module
Fault resilient booting
Field replaceable unit
Front side Bus
1024 MB.
GPIO
GTL
HSC
Hz
General purpose I/O
Gunning Transistor Logic
Hot-swap controller
Hertz (1 cycle/second)
Inter-integrated circuit bus
Intel® architecture
I2C
IA
IBF
Input buffer
ICH
I/O controller hub
ICMB
IERR
Intelligent Chassis Management Bus
Internal error
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Intel® Server Board SE7520JR2
Term
Glossary
Definition
IFB
I/O and firmware bridge
IMM
INTR
IP
Intel Management Module
Internet Protocol
IPMB
IPMI
IR
Intelligent Platform Management Bus
Intelligent Platform Management Interface
Infrared
ITP
In-target probe
KB
1024 bytes.
KCS
LAN
LCD
LED
LPC
LUN
MAC
MB
Keyboard controller style
Local area network
Liquid crystal display
Light Emitting Diode
Low pin count
Logical unit number
Media Access Control
1024 KB
mBMC
MCH
MD2
MD5
Ms
National Semiconductor© PC87431x mini BMC
Memory Controller Hub
Message Digest 2 – Hashing Algorithm
Message Digest 5 – Hashing Algorithm – Higher Security
milliseconds
MTTR
Mux
NIC
Memory Tpe Range Register
multiplexor
Network interface card
NMI
Nonmaskable interrupt
OBF
OEM
Ohm
PEF
PEP
PIA
Output buffer
Original equipment manufacturer
Unit of electrical resistance
Platform event filtering
Platform event paging
Platform Information Area – This feature configures the firmware for the platform hardware.
programmable logic device
PLD
PMI
Platform management interrupt
Power-on Self Test
POST
PSMI
PWM
RAM
RASUM
RISC
ROM
RTC
SDR
SECC
Power Supply Management Interface
Pulse-width Modulation
Random Access Memory
Reliability, availability, serviceability, usability, and manageability
Reduced instruction set computing
Read Only Memory
Real-time clock. Component of ICH peripheral chip on the baseboard.
Sensor data record
Single edge connector cartridge
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Glossary
Intel® Server Board SE7520JR2
Term
Definition
SEEPROM
Serial electrically erasable programmable read-only memory
SEL
System Event Log
Server Input/output
SIO
SMI
Server management interrupt. SMI is the highest priority nonmaskable interrupt.
Server management mode.
SMM
SMS
SNMP
TBD
TBSG
TIM
Server management software
Simple Network Management Protocol.
To Be Determined
Thermal Interface Material
universal asynchronous receiver/transmitter
User Datagram Protocol.
Universal Host Controller Interface
Universal time coordinare
Voltage Identification
UART
UDP
UHCI
UTC
VID
VRD
Word
ZIF
Voltage Regulator Down
16-bit quantity
Zero Insertion Force
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Intel® Server Board SE7520JR2
Reference Documents
Reference Documents
Refer to the following documents for additional information:
•
Intel® Server Board SE7520JR2 Server Management External Architecture Specification
(EAS). Intel Corporation.
•
•
•
Intel® Server Board SE7520JR2 BIOS External Product Specification. Intel Corporation
Intel® Server Board SE7520JR2 BMC External Product Specification. Intel Corporation
Mini Baseboard Management Controller mBMC Core External Product Specification. Intel
Corporation
•
•
•
•
•
•
•
Silverwood Server Management Firmware External Architecture Specification (EAS). Intel
Corporation.
Intel Server Chassis SR1400 and SR2400 Technical Product Specification, Intel
Corporation.
Sahalee Baseboard Management Controller Core External Product Specification (Sahalee
BMC Core EPS for IPMI 2.0 Systems), Intel Corporation.
Sahalee Platform Information Area External Product Specification
(Sahalee PIA EPS) ver 1.0, Intel Corporation
Advanced Configuration and Power Interface Specification. Intel Corporation, Microsoft
Corporation, Toshiba Corporation.
Intelligent Chassis Management Bus (ICMB) Specification, Version 1.0. Intel Corporation,
Hewlett-Packard Company, NEC Corporation, Dell Computer Corporation.
Intelligent Platform Management Bus Communications Protocol Specification, Version 1.0.
1998. Intel Corporation, Hewlett-Packard Company, NEC Corporation, Dell Computer
Corporation.
•
•
Intelligent Platform Management Interface Specification, Version 2.0. Intel Corporation,
Hewlett-Packard Company, NEC Corporation, Dell Computer Corporation.
Platform Management FRU Information Storage Definition. 1998. Intel Corporation,
Hewlett-Packard Company, NEC Corporation, Dell Computer Corporation.
http://developer.intel.com/design/servers/ipmi/spec.htm
The I2C Bus and How to Use It, January 1992. Phillips Semiconductors.
•
•
Power Supply Management Interface (PSMI), Revision 1.4, 2003. Intel Corporation
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