AIMB-744
Socket 478 Intel® Pentium®
4/Celeron® Industrial ATX
Motherboard with PCI-X/DDR/
AGP/Dual GbE/800 MHz FSB
User’s Manual
1.0.1 A Message to the Customer
Advantech customer services
Each and every Advantech product is built to the most exacting specifica-
tions to ensure reliable performance in the harsh and
demanding conditions typical of industrial environments. Whether your
new Advantech equipment is destined for the laboratory or the factory
floor, you can be assured that your product will provide the reliability and
ease of operation for which the name Advantech has come to be known.
Your satisfaction is our primary concern. Here is a guide to
Advantech’s customer services. To ensure you get the full benefit of our
services, please follow the instructions below carefully.
Technical support
We want you to get the maximum performance from your products. So if
you run into technical difficulties, we are here to help. For the most fre-
quently asked questions, you can easily find answers in your product doc-
umentation. These answers are normally a lot more detailed than the ones
we can give over the phone.
So please consult this manual first. If you still cannot find the answer,
gather all the information or questions that apply to your problem, and
with the product close at hand, call your dealer. Our dealers are well
trained and ready to give you the support you need to get the most from
your Advantech products. In fact, most problems reported are minor and
are able to be easily solved over the phone.
In addition, free technical support is available from Advantech engineers
every business day. We are always ready to give advice on application
requirements or specific information on the installation and operation of
any of our products.
iii
AIMB-744 User’s Manual
iv
Table 1.2: AIMB-744 comparison table
Model
AIMB-744G2-
00A1
AIMB-744L-
00A1
AIMB-744G-
00A1
LAN 1: Intel
Yes
No
Yes
82547GI 10/100/
1000Base-T
LAN 2: Intel
Yes
No
No
82541GI 10/100/
1000Base-T
1.0.2 Product warranty
Advantech warrants to you, the original purchaser, that each of its prod-
ucts will be free from defects in materials and workmanship for two years
from the date of purchase.
This warranty does not apply to any products which have been repaired or
altered by persons other than repair personnel authorized by Advantech,
or which have been subject to misuse, abuse, accident or improper instal-
lation. Advantech assumes no liability under the terms of this warranty as
a consequence of such events.
If an Advantech product is defective, it will be repaired or replaced at no
charge during the warranty period. For out-of-warranty repairs, you will
be billed according to the cost of replacement materials, service time and
freight. Please consult your dealer for more details.
If you think you have a defective product, follow these steps:
Step 1. Collect all the information about the problem encountered. (For
example, type of PC, CPU speed, Advantech products used,
other hardware and software used, etc.) Note anything abnormal
and list any on-screen messages you get when the problem
occurs.
Step 2. Call your dealer and describe the problem. Please have your man-
ual, product, and any helpful information readily available.
Step 3. If your product is diagnosed as defective, obtain an RMA (return
material authorization) number from your dealer. This allows us
to process your return more quickly.
v
Step 4. Carefully pack the defective product, a fully-completed Repair
and Replacement Order Card and a photocopy proof of purchase
date (such as your sales receipt) in a shippable container. A prod-
uct returned without proof of the purchase date is not eligible for
warranty service.
Step 5. Write the RMA number visibly on the outside of the package and
ship it prepaid to your dealer.
1.0.3 Initial Inspection
Before you begin installing your motherboard, please make sure that the
following materials have been shipped:
• AIMB-744 Pentium ® 4/Celeron™ processor-based industrial mother
board
• 1 AIMB-744 Startup Manual
• 1 CD with driver utility and manual (in PDF format)
• 1 FDD cable
P/N: 1700340640
P/N: 1701400452
P/N: 1700071000
P/N: 1703150102
P/N: 170304015K
P/N: 1701092300
P/N: 1962015680
P/N: 1700100170
• 2 Ultra ATA 66/100 HDD cables
• 2 Serial ATA HDD data cable
• 2 Serial ATA HDD power cable
• 1 ATX 12V power converter cable
• 1 Dual COM port cable kit
• 1 I/O port bracket
• 1 Two USB ports ext kit (optional)
If any of these items are missing or damaged, contact your distributor or
sales representative immediately. We have carefully inspected the AIMB-
744 mechanically and electrically before shipment. It should be free of
marks and scratches and in perfect working order upon receipt. As you
unpack the AIMB-744, check it for signs of shipping damage. (For exam-
ple, damaged box, scratches, dents, etc.) If it is damaged or it fails to meet
the specifications, notify our service department or your local sales repre-
sentative immediately. Also notify the carrier. Retain the shipping carton
and packing material for inspection by the carrier. After inspection, we
will make arrangements to repair or replace the unit.
1.0.4 Release Note
Date
Revision
Description
July 2004
1st. Edition
Initial Release
AIMB-744 User’s Manual
vi
Contents
Chapter 1 Hardware Configuration.................................2
1.1 Introduction....................................................................... 2
1.2 Features ............................................................................. 3
1.3 Specifications .................................................................... 3
1.3.1 System............................................................................. 3
1.3.2 Memory........................................................................... 4
1.3.3 Input/Output.................................................................... 4
1.3.4 VGA interface................................................................. 4
1.3.5 Ethernet LAN.................................................................. 4
1.3.6 Industrial features ........................................................... 5
1.3.7 Mechanical and environmental specifications................ 5
1.4 Jumpers and Connectors.................................................... 5
Table 1.1:Jumpers........................................................... 5
Table 1.2:Connectors...................................................... 6
1.5 Board Layout: Jumper and Connector Locations.............. 8
Figure 1.1:Jumper and Connector locations ................... 8
Figure 1.2:I/O Connectors .............................................. 8
1.6 AIMB-744 Block Diagram............................................... 9
Figure 1.3: AIMB-744 Block Diagram........................... 9
1.7 Safety Precautions.......................................................... 10
1.8 Jumper Settings ............................................................... 11
1.8.1 How to set jumpers ....................................................... 11
1.8.2 CMOS clear (J1)........................................................... 11
Table 1.3:CMOS (J1).................................................... 11
1.8.3 Watchdog timer output (J2).......................................... 11
Table 1.4:Watchdog timer output (J2).......................... 12
1.8.4 Riser card selection (J3 & J4)....................................... 12
Table 1.5:Riser card selection (J3 & J4)...................... 12
1.9 System Memory .............................................................. 13
1.9.1 CPU FSB and memory speed ....................................... 13
Table 1.6:CPU FSB and memory speed....................... 13
1.9.2 Dual channel configuration........................................... 13
1.10 Memory Installation Procedures ..................................... 14
1.11 Cache Memory ................................................................ 14
1.12 Processor Installation ...................................................... 14
Chapter 2 Connecting Peripherals .................................18
2.1 Introduction..................................................................... 18
2.2 Primary (CN1) and Secondary (CN2) IDE Connectors.. 18
2.3 Floppy Drive Connector (CN3)....................................... 19
2.4 Parallel Port (CN4).......................................................... 19
vii
2.5 USB Ports (CN6/CN63).................................................. 20
2.6 VGA Connector (CN7) ................................................... 20
2.7 Serial Ports (COM1 : CN9; COM2 : CN10 ).................. 21
2.8 PS/2 Keyboard and Mouse Conn (CN11)....................... 21
2.9 External Keyboard Connector (CN12)............................ 22
2.10 CPU Fan Connector (CN14) ........................................... 22
2.11 System FAN connector (CN15 and CN37)..................... 22
2.12 Front Panel Connectors (CN16, 17, 18, 19, 21&29)....... 23
2.12.1 Power LED and Keyboard Lock (CN16) ..................... 23
2.12.2 External speaker (CN17) .............................................. 23
2.12.3 Reset (CN18) ................................................................ 23
2.12.4 HDD LED (CN19)........................................................ 24
2.12.5 ATX soft power switch (CN21).................................... 24
2.12.6 SM Bus Connector (CN29)........................................... 24
2.13 H/W Monitor Alarm (CN22)........................................... 24
2.14 USB and LAN ports (CN31 and CN32).......................... 25
2.15 CF socket (CN44)............................................................ 25
2.16 Line Out, Mic IN connector (CN55)............................... 26
2.17 Audio input from CD-ROM (CD IN; CN56).................. 26
2.18 Aux Line-In connector (AUX IN; CN57)....................... 26
2.19 Modem-In connector (MDM IN; CN58) ........................ 27
2.20 Front Panel audio connector (FP AUDIO; CN59).......... 27
2.21 8-pin Alarm Board Connector (CN62)............................ 27
2.22 Case Open Connector (CN64)......................................... 28
2.23 Serial ATA interface (SA0 and SA1).............................. 28
2.24 Connecting to SNMP-1000 remote manager .................. 29
2.25 Auxiliary 4-pin power connector (ATX1) ...................... 29
Chapter 3 Award BIOS Setup.........................................32
3.1 Introduction..................................................................... 32
3.1.1 CMOS RAM Auto-backup and Restore....................... 32
3.2 Entering Setup................................................................. 33
Figure 3.1:Award BIOS Setup initial screen ................ 33
3.3 Standard CMOS Setup .................................................... 33
Figure 3.2:Standard CMOS features screen ................. 33
3.4 Advanced BIOS Features................................................ 34
Figure 3.3:Advanced BIOS features screen.................. 34
3.4.1 Hard Disk Boot Priority................................................ 34
3.4.2 Virus Warning............................................................... 34
3.4.3 CPU L1 & L2 Cache..................................................... 34
3.4.4 Hyper-Threading Technology....................................... 34
3.4.5 Quick Power On Self Test ............................................ 35
3.4.6
First/Second/Third Boot Device.................................. 35
3.4.7 Boot Other Device ........................................................ 35
AIMB-744 User’s Manual viii
3.4.8
Swap Floppy Drive...................................................... 35
3.4.9 Boot UP Floppy Seek ................................................... 35
3.4.10 Boot Up NumLock Status............................................. 35
3.4.11 Gate A20 Option........................................................... 35
3.4.12 Typematic Rate Setting................................................. 35
3.4.13 Typematic Rate (Chars/Sec)......................................... 35
3.4.14 Typematic Delay (msec)............................................... 35
3.4.15 Security Option............................................................. 36
3.4.16 APIC Mode................................................................... 36
3.4.17 MPS Version Control For OS....................................... 36
3.4.18 OS Select For DRAM > 64MB .................................... 36
3.5 Advanced Chipset Features............................................. 36
3.5.1 DRAM Timing Selectable ............................................ 37
3.5.2 CAS Latency Time ....................................................... 37
3.5.3 Active to Precharge Delay............................................ 37
3.5.4 DRAM RAS# to CAS# Delay ..................................... 37
3.5.5 DRAM RAS# Precharge............................................... 37
3.5.6 Memory Frequency....................................................... 37
Figure 3.4:Advanced chipset features screen ............... 37
3.5.7 System BIOS Cacheable............................................... 38
3.5.8 Video Bios Cacheable................................................... 38
3.5.9 Memory Hole At 15M-16M ......................................... 38
3.5.10 Delay Prior to Thermal ................................................. 38
3.5.11 AGP Aperture Size (MB) ............................................. 38
3.5.12 Init Display First.......................................................... 38
3.5.13 On-Chip VGA............................................................... 38
3.5.14 On-Chip Frame Buffer Size.......................................... 38
3.6 Integrated Peripherals...................................................... 39
Figure 3.5:Integrated peripherals.................................. 39
Figure 3.6:On-Chip IDE Device................................... 39
3.6.1 IDE HDD Block Mode ................................................. 40
3.6.2 On-Chip IDE Device .................................................... 40
3.6.3 On-Chip Serial ATA..................................................... 40
3.6.4 Serial ATA Port0/Port1 Mode...................................... 40
Figure 3.7:Onboard Device........................................... 40
3.6.5 USB Controller ............................................................. 41
3.6.6 USB 2.0 Controller ....................................................... 41
3.6.7 USB Keyboard/Mouse Support .................................... 41
3.6.8 AC97 Audio.................................................................. 41
3.6.9 Onboard LAN1 Control................................................ 41
3.6.10 Onboard LAN2 Control................................................ 41
3.6.11 Onboard LAN Boot ROM ............................................ 41
Figure 3.8:SuperIO Device........................................... 41
3.6.12 Onboard FDC Controller .............................................. 42
3.6.13 Onboard Serial Port 1 ................................................... 42
ix
3.6.14 Onboard Serial Port 2 ................................................... 42
3.6.15 UART Mode Select ...................................................... 42
3.6.16 RxD, TxD Active.......................................................... 42
3.6.17 IR Transmission Delay ................................................. 42
3.6.18 UR2 Duplex Mode........................................................ 42
3.6.19 Use IR Pins ................................................................... 42
3.6.20 Onboard Parallel Port.................................................... 42
3.6.21 Parallel Port Mode ........................................................ 42
3.6.22 EPP Mode Select .......................................................... 43
3.6.23 ECP Mode Use DMA ................................................... 43
3.6.24 PWRON After PWR-Fail ............................................. 43
3.7 Power Management Setup............................................... 43
Figure 3.9:Power management setup screen (1)........... 43
3.7.1 ACPI function............................................................... 44
3.7.2 ACPI Suspend Type...................................................... 44
3.7.3 Power Management ...................................................... 44
3.7.4 Video Off Method......................................................... 44
3.7.5
Video Off In Suspend .................................................. 44
3.7.6 Suspend Type................................................................ 44
3.7.7 Modem Use IRQ........................................................... 44
3.7.8 Soft-Off by PWR-BTTN .............................................. 44
3.7.9 CPU THRM-Throttling................................................. 45
3.7.10 Resume on LAN/PCI PME#......................................... 45
3.7.11 Resume on Ring............................................................ 45
3.7.12 Resume on Alarm ......................................................... 45
3.7.13 Primary IDE 0 (1) and Secondary IDE 0 (1) ................ 45
3.7.14 FDD, COM, LPT PORT............................................... 45
3.7.15 PCI PIRQ [A-D]# ........................................................ 46
3.8 PnP/PCI Configurations.................................................. 46
Figure 3.10:PnP/PCI configurations screen.................. 46
3.8.1 Reset Configuration Data.............................................. 46
3.8.2 Resources Controlled By .............................................. 46
3.8.3 PCI/VGA Palette Snoop ............................................... 46
3.9 PC Health Status.............................................................. 46
3.9.1 CPU Warning Temperature .......................................... 46
Figure 3.11:PC health status screen.............................. 47
3.9.2 Current System Temp................................................... 47
3.9.3 Current CPU Temperature............................................ 47
3.9.4 Current CPUFAN Speed............................................... 47
3.9.5 VCORE, +1.5V, VCC3, +5V, +12V, -12V, -5V,
VBAT(V), 5VSB(V)47
3.10 Spread Spectrum Control ................................................ 48
Figure 3.12:Spread Spectrum Control screen............... 48
3.10.1 CPU Clock Ratio .......................................................... 48
3.10.2 Spread Spectrum........................................................... 48
AIMB-744 User’s Manual
x
3.11 Password Setting ............................................................. 48
3.12 Save & Exit Setup ........................................................... 49
3.13 Exit Without Saving........................................................ 49
Chapter 4 Chipset Software Install Utility.....................52
4.1 Before you begin ............................................................. 52
4.2 Introduction..................................................................... 52
4.3 Windows XP Driver Setup.............................................. 53
Chapter 5 VGA Setup ......................................................58
5.1 Introduction..................................................................... 58
5.2 Dynamic Video Memory Technology............................. 58
5.3 Windows XP Driver Setup.............................................. 59
Chapter 6 LAN Configuration ........................................64
6.1 Introduction..................................................................... 64
6.2 Features ........................................................................... 64
6.3 Installation....................................................................... 65
6.4 Win XP Driver Setup (Intel 82547/41/62/51)................. 65
Chapter 7 Onboard Security Setup ................................70
7.1 Introduction..................................................................... 70
7.2 Windows XP Driver Setup.............................................. 71
7.3 Using the OBS Hardware Doctor Utility ........................ 74
Appendix A Programming the watchdog timer...............78
A.1 Programming the Watchdog Timer................................. 78
A.1.1 Watchdog timer overview............................................. 78
A.1.2 Reset/ Interrupt selection .............................................. 78
A.1.3 Programming the Watchdog Timer .............................. 78
A.1.4 Example Program ......................................................... 81
Appendix B Pin Assignments ............................................88
B.1 IDE Hard Drive Connector (CN1, CN2)......................... 88
Table B.1:IDE hard drive connector (CN1, CN2)........ 88
B.2 Floppy Drive Connector (CN3)....................................... 89
Table B.2:Floppy drive connector (CN3)..................... 89
B.3 Parallel Port Connector (CN4)........................................ 90
Table B.3:Parallel port connector (CN4)...................... 90
B.4 USB Connector (CN6 and CN63)................................... 91
Table B.4:USB1/USB2 connector (CN6 and CN63).... 91
B.5 VGA Connector (CN7) ................................................... 91
Table B.5:VGA connector (CN7)................................. 91
B.6 COM1/COM2 RS-232 Serial Port (CN9, CN10)............ 92
Table B.6:COM1/2 RS-232 serial port (CN9/10)......... 92
B.7 Keyboard and Mouse Connnector (CN11)...................... 92
Table B.7:Keyboard and mouse connector (CN11)...... 93
xi
B.8 External Keyboard Connector (CN12)............................ 93
Table B.8:External keyboard connector (CN12).......... 93
B.9 CPU/System Fan Power Conn (CN14/15/37)................. 94
Table B.9:CPU/System Fan Power Conn (CN14/15/37)..
94
B.10 Power LED (CN16)......................................................... 94
Table B.10: Power LED and keylock conn (CN16)..... 94
B.11 External Speaker Connector (CN17)............................... 95
Table B.11:External Speaker Connector (CN17) ......... 95
B.12 Reset Connector (CN18)................................................. 95
Table B.12:Reset connector (CN18)............................. 95
B.13 HDD LED Connector (CN19)......................................... 96
Table B.13:HDD LED connector (CN19).................... 96
B.14 ATX Soft Power Switch (CN21) .................................... 96
Table B.14:ATX soft power switch (CN21)................. 96
B.15 H/W Monitor Alarm (CN22)........................................... 97
Table B.15:H/W monitor alarm (CN22)....................... 97
B.16 SM Bus Connector (CN29)............................................. 97
Table B.16:SM Bus Connector (CN 29)....................... 97
B.17 USB/LAN ports (CN31 and CN32) ................................ 97
Table B.17:USB port .................................................... 97
Table B.18:Ethernet 10/100Base-T RJ-45 port ............ 98
B.18 CF socket (CN44) ........................................................... 98
Table B.19:CF socket (CN44) ...................................... 98
B.19 Line Out, Mic IN connector (CN55)............................... 99
B.20 Audio input from CD-ROM (CD IN; CN56).................. 99
Table B.20:Audio in from CD-ROM (CD IN; CN56).. 99
B.21 Aux Line-In connector (AUX IN; CN57)..................... 100
Table B.21:Aux Line-In connector (AUX IN; CN57) 100
B.22 Modem-In connector (MDM IN; CN58) ...................... 100
Table B.22:Modem-In connector (MDM IN; CN58). 100
B.23 Front Panel audio connector (FP AUDIO; CN59)........ 101
Table B.23:Front audio conn (FP AUDIO; CN59)..... 101
B.24 Case Open Connector (CN64)....................................... 101
Table B.24:Case Open Connector (CN64) ................. 101
B.25 8-pin Alarm Board Connector (CN62).......................... 102
Table B.25:8-pin Alarm Board Connector (CN62) .... 102
B.26 System I/O Ports............................................................ 102
Table B.26:System I/O ports ...................................... 102
B.27 DMA Channel Assignments.......................................... 103
Table B.27:DMA channel assignments ...................... 103
B.28 Interrupt Assignments ................................................... 104
Table B.28:Interrupt assignments............................... 104
B.29 1st MB Memory Map.................................................... 104
AIMB-744 User’s Manual
xii
Table B.29:1st MB memory map ............................... 104
B.30 PCI Bus Map................................................................. 105
Table B.30:PCI bus map (for VE, E2 version)........... 105
Table B.31:PCI bus map (for VG, G2 version).......... 105
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AIMB-744 User’s Manual
xiv
1
General Information
Chapter 1 Hardware Configuration
1.1 Introduction
Advantech's AIMB-744 series industrial motherboard is designed based
on the standard ATX form factor with additional industrial features such
as long product life, high reliability and manageability. It is flexible to be
installed in a commercial PC chassis or in an industrial grade rack mount-
ing chassis. It meets the requirements of a variety of applications where a
commercial motherboard cannot fit.
The AIMB-744 uses Intel's 875P with 6300ESB chipset to support Intel's
Socket 478 Pentium 4 and Celeron processor with 800/533/400 MHz
front side bus. The dual channel DDR 400 SDRAM interface provides
bottleneck free memory bandwidth up to 6.4GB/s. In addition to the two
EIDE interfaces (up to four devices), it features a high performance serial
ATA interface (up to 150MB/s) which eases cabling to hard drives in
industrial chassis with thin and long cables. Other features include two
64-bit PCI-X (66MHz) slots, dual Giga-bit Ethernet ports, dual channel
Ultra 160 SCSI interface, four USB 2.0 ports (up to 480 Mbps), and other
standard PC functions like four RS-232 serial port interfaces, one
enhanced parallel port and floppy disk interface.
A backup of CMOS data is stored in the Flash memory, which protects
BIOS setup data even after a battery failure. Also included is a 255-level
watchdog timer, which resets the CPU or generates an interrupt if a pro-
gram cannot be executed normally. This enables reliable operation in
unattended environments.
The remote management interface enables the AIMB-744 to be managed
through Ethernet when it is connected to the SNMP-1000 Remote HTTP/
SNMP System Manager.
Note:
Some of the features mentioned above are not
available with all models. For more information
about the specifications of a particular model,
see Table 1.1 : Comparison table and Section
1.3: Specifications.
AIMB-744 User’s Manual
2
1.2 Features
1.
Standard ATX form factor with industrial features: AIMB-744
provides industrial features like long product life, reliable operation
under wide temperature range, watchdog timer, CMOS backup
functions, etc.
2.
3.
PCI-X and PCI bus support: AIMB-744 equips with two 64-bit
PCI-X (66MHz) slots and 4 32-bit PCI slots , providing the high
performance computing systems.
Healthy status monitoring and remote management: System
voltage levels, fan speed, CPU temperature are monitored to ensure
stable operation. The remote management interface allows the sys-
tem to be managed through Ethernet when it is connected to the
SNMP-1000 Remote HTTP/SNMP System Manager.
4.
5.
BIOS CMOS backup and restore: When BIOS CMOS setup has
been completed, data in the CMOS RAM is automatically backed
up to the Flash ROM. This is particularly useful in harsh environ-
ments which may cause setup data loss such as battery failure.
Upon such an error occurring, BIOS will check the data, and auto-
matically restore the original data for booting.
Automatically power on after power failure: It is often required
to have an unattended system come back to operation when power
resumes after a power failure. Advantech's industrial motherboard
allows users to set the system to power on automatically without
pushing the power on button.
1.3 Specifications
1.3.1 System
• CPU: Intel® socket 478 Celeron® 2.0~2.8 GHz, Pentium® 4 up to
3.4 GHz, FSB 400/533/800 MHz; suppports Intel Hyper-Threading
technology. Does not support CPU with 1.75V core voltage (Wil-
lamete).
• L2 Cache: CPU built-in 128/256/512/1024 KB full-speed L2 cache
• BIOS: Award Flash BIOS (4Mb Flash Memory)
• System Chipset: Intel 875P with 6300ESB
• SATA/EIDE hard disk drive interface: Supports up to two indepen-
dent serial ATA hard drives (up to 150MB/s) and two IDE hard disk
3
drives or four enhanced IDE devices. Supports PIO mode 4 (16.67MB/s
data transfer rate) and ATA 33/66/100 (33/66/100MB/s data transfer
rate.) BIOS enabled/disabled.
• Floppy disk drive interface: Supports up to two floppy disk drives,
5¼" (360 KB and 1.2 MB) and/or 3½" (720 KB, 1.44 MB). BIOS
enabled/disabled
1.3.2 Memory
• RAM: Up to 4GB in four 184-pin DIMM sockets. Supports dual channel
DDR266/333/400 SDRAM
1.3.3 Input/Output
• PCI-X bus : 2 PCI-X slots, 64-bit, 66MHz. PCI 2.2 compliant
• PCI Bus: 4 PCI slots, 32-bit, 33MHz. PCI 2.2 compliant
• Enhanced parallel port: Configured to LPT1, LPT2, LPT3, or dis-
abled. Standard DB-25 female connector provided. Supports EPP/SPP/
ECP
• Serial ports: Four RS-232 ports with two DB-9 connectors and two
onboard pin headers for extension. Supports speeds up to 115.2 Kbps.
Ports can be individually configured to COM1, COM2, COM3, COM4
or disabled
• Keyboard and PS/2 mouse connector: Two 6-pin mini-DIN connec-
tors are located on the mounting bracket for easy connection to a key-
board and PS/2 mouse.
• USB port: Supports up to four USB 2.0 and transmission rate up to
480Mbps.
1.3.4 AGP interface
• AGP port: One AGP 8X/4X slot, 0.8V and 1.5V only
1.3.5 Ethernet LAN
• Supports single/dual 10/100/1000Base-T Ethernet networking
• Controller:
LAN 1 Intel 82547GI (CSA)
LAN 2: Intel 82541GI (PCI)
AIMB-744 User’s Manual
4
1.3.6 Industrial features
• Watchdog timer: Can generate a system reset or IRQ11. The watch-
dog timer is programmable, with each unit equal to one second or one
minute (255 levels)
1.3.7 Mechanical and environmental specifications
• Operating temperature: 0°~60° C (32° ~ 140° F, Depending on CPU)
• Storage temperature: -20°~ 70° C (-4° ~ 158° F)
• Humidity: 20 ~ 95% non-condensing
• Power supply voltage: +3.3V, +5 V, ±12 V
• Power consumption: Typical : +3.3V:8.13A, +5V:0.57A ,
+12V:5.29A (Intel Pentium® 4 3.2GHz, 4GB DDR 400)
• Board size: 304.8 x 228.6 mm (12" x 9.6"")
• Board weight: 0.7 kg (1.68 lb)
1.4 Jumpers and Connectors
Connectors on the AIMB-744 motherboard link it to external devices
such as hard disk drives and a keyboard. In addition, the board has a num-
ber of jumpers used to configure your system for your application.
The tables below list the function of each of the board jumpers and con-
nectors. Later sections in this chapter give instructions on setting jump-
ers. Chapter 2 gives instructions for connecting external devices to your
motherboard.
Table 1.1: Jumpers
Function
Label
J1
J2
J5
J6
J8
CMOS Clear
Watchdog timer output selection
PCI-X 33/66Mhz selection 1
PCI-X 33/66MHz selection 2
PCI slots 3.3V/5V selection
5
Table 1.2: Connectors
Label
Function
CN1
Primary IDE connector
Secondary IDE connector
Floppy drive connector
Parallel port
CN2
CN3
CN4
CN6
USB port 4, 5 (shared with CN32)
Serial port: COM1
CN9
CN10
CN11
CN12
CN14
CN15
CN16
CN17
CN18
CN19
CN21
CN22
Serial port connector: COM3
PS/2 keyboard and mouse connector
External keyboard connector
CPU FAN connector
System FAN connector 1
Power LED and Keyboard Lock
External speaker
Reset connector
HDD LED connector
ATX soft power switch (PS_ON)
HW Monitor Alarm
Close: Enable OBS Alarm
Open: Disable OBS Alarm
CN23
CN29
Serial port connector: COM4
SM BUS Connector
PIN1: SMB_DATA
PIN2: SMB_CLOCK
CN31
CN32
CN37
CN38
CN55
CN56
CN57
CN59
USB port 0, 1 & LAN1
USB port 2, 3 & LAN2
System FAN connector 2
Serial port: COM2
Line Out, Mic IN connector
CD IN (Audio input from CD-ROM)
AUX IN connector
FP AUDIO connector
AIMB-744 User’s Manual
6
Table 1.2: Connectors
CN62
CN64
SA0
8-pin Alarm Board Connector
Case Open
Serial ATA 0
SA1
Serial ATA 1
ATX1
ATX2
ATX 12V Auxiliary power connector
ATX power connector
7
1.5 Board Layout: Jumper and Connector Locations
CN 9
CN38
CN11
CN59
CN4
CN32
CN31
CN56
CN55
CN15
PCI-X2
J8
PCI-X1 PCI4
PCI3
PCI2
PCI1
CN57
ATX1
ATX2
AGP1
J5
J65
CN6
CN23
J7
CN14
CN10
CN3
DIMM1
DIMM2
J1
CN64
CN62
DIMM3
DIMM4
CN2
SA0 SA1
CN12
CN37
CN1
Figure 1.1: Jumper and Connector locations
CN31 CN32
CN55
CN11
CN38
CN9
C
N38
Figure 1.2: I/O Connectors
AIMB-744 User’s Manual
8
1.6 AIMB-744 Block Diagram
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Figure 1.3: AIMB-744 Block Diagram
9
1.7 Safety Precautions
Warning! Always completely disconnect the power cord
from your chassis whenever you work with the
hardware. Do not make connections while the
power is on. Sensitive electronic components
can be damaged by sudden power surges. Only
experienced electronics personnel should open
the PC chassis.
Caution!
Always ground yourself to remove any static
charge before touching the motherboard. Mod-
ern electronic devices are very sensitive to
static electric charges. As a safety precaution,
use a grounding wrist strap at all times. Place
all electronic components on a static-dissipative
surface or in a static-shielded bag when they
are not in the chassis.
Caution!
The computer is provided with a battery-pow-
ered Real-time Clock circuit. There is a danger
of explosion if battery is incorrectly replaced.
Replace only with same or equivalent type rec-
ommended by the manufacturer. Discard used
batteries according to manufacturer's instruc-
tions.
Caution!
There is a danger of a new battery exploding if
it is incorrectly installed. Do not attempt to
recharge, force open, or heat the battery.
Replace the battery only with the same or
equivalent type recommended by the manufac-
turer. Discard used batteries according to the
manufacturer’s instructions.
AIMB-744 User’s Manual
10
This device complies with the requirements in part
15 of the FCC rules: Operation is subject to the fol-
lowing 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
This equipment has been tested and found to com-
ply with the limits for a Class A digital device, pursu-
ant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against
harmful interference when the equipment is oper-
ated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance
with the instruction manual, may cause harmful
interference to radio communications. Operation of
this device in a residential area is likely to cause
harmful interference in which case the user will be
required to correct the interference at his/her own
expense. The user is advised that any equipment
changes or modifications not expressly approved
by the party responsible for compliance would void
the compliance to FCC regulations and therefore,
the user's authority to operate the equipment.
11
1.8 Jumper Settings
This section provides instructions on how to configure your motherboard
by setting the jumpers. It also includes the motherboards's default settings
and your options for each jumper.
1.8.1 How to set jumpers
You can configure your motherboard to match the needs of your applica-
tion by setting the jumpers. A jumper is a metal bridge that closes an elec-
trical circuit. It consists of two metal pins and a small metal clip (often
protected by a plastic cover) that slides over the pins to connect them. To
“close” (or turn ON) a jumper, you connect the pins with the clip. To
“open” (or turn OFF) a jumper, you remove the clip. Sometimes a jumper
consists of a set of three pins, labeled 1, 2, and 3. In this case you connect
either pins 1 and 2, or 2 and 3. A pair of needle-nose pliers may be useful
when setting jumpers.
1.8.2 CMOS clear (J1)
The AIMB-744 motherboard contains a jumper that can erase CMOS
data and reset the system BIOS information. Normally this jumper should
be set with pins 1-2 closed. If you want to reset the CMOS data, set J1 to
2-3 closed for just a few seconds, and then move the jumper back to 1-2
closed. This procedure will reset the CMOS to its default setting.
Table 1.3: CMOS (J1)
Function
Jumper Setting
* Keep CMOS data
1-2 closed
2-3 closed
Clear CMOS data
* default setting
1.8.3 Watchdog timer output (J2)
The AIMB-744 contains a watchdog timer that will reset the CPU or send
a signal to IRQ11 in the event the CPU stops processing. This feature
means the AIMB-744 will recover from a software failure or an EMI
AIMB-744 User’s Manual
12
problem. The J2 jumper settings control the outcome of what the com-
puter will do in the event the watchdog timer is tripped.
Table 1.4: Watchdog timer output (J2)
Function
Jumper Setting
IRQ11
1
1-2 closed
* Reset
1
2-3 closed
* default setting
Note:
The interrupt output of the watchdog timer is a
low level signal. It will be held low until the
watchdog timer is reset.
1.8.4 PCI-X 33/66Mhz selection (J5 & J6)
The AIMB-744 contains a PCI-X 33/66Mhz selection that enables the
PCI-X slots different modes. The default mode is PCI 33MHz which
close both J5 and J6. While close J6 only the slots work in PCI 66MHz
mode. To enable PCI-X 66MHz mode, please close J5 only.
Table 1.5: PCI-X 33/66MHz selection (J5&J6)
Function
Jumper Setting
*PCI 33MHz
J5-J6
PCI 66MHz
J6 Close
J5 Close
PCI-X 66MHz
13
1.8.5 PCI-X slots 3.3V/5V selection (J8)
The AIMB-744 contains a PCI-X 3.3V/5V selection that provide the user
to select the operation voltage either 3.3V or 5V. The default setting is
3.3V which close pin1 and pin2. By closing pin2 and pin3, the operation
voltage change to 5V.
Table 1.6: PCI-X slots 3.3V/5V selection (J8)
Function
Jumper Setting
*3.3V
1-2 Closed
2-3 Closed
5V
1.9 System Memory
The AIMB-744 has four sockets for 184-pin dual inline memory modules
(DIMMs) in two separated memory channels. It can operate with single
channel or dual channel modules. We recommend to use dual channel
mode to provide optimized performance.
All these sockets use 2.5 V unbuffered double data rate synchronous
DRAMs (DDR SDRAM). They are available in capacities of 128, 256,
512 and 1024 MB. The sockets can be filled in any combination with
DIMMs of any size, giving a total memory size between 128 MB and 4
GB.
Note: System resources such as PCI and AGP cards require phys-
ical memory address locations that reduce available memory
addresses above 3GB. This may result in less than 4GB of mem-
ory being available to the operating system and applications.
1.9.1 CPU FSB and memory speed
The AIMB-744 can accept DDR SDRAM memory chips without parity.
Also note: The AIMB-744 accepts PC2100 (DDR266), PC2700 (DDR
333) and PC3200 (DDR 400) DDR SDRAM, depending on the CPU
front side bus frequency (FSB). Please refer below table for the relation-
ship between the CPU FSB and memory speed.
Table 1.7: CPU FSB and memory speed
AIMB-744 User’s Manual
14
Memory
Speed
Processor
FSB frequency Memory speed Outcome
DDR400
DDR333
Pentium 4
Pentium 4
Pentium 4
800 MHz
800 MHz
533MHz
400 MHz
400 MHz
320 MHz
333 MHz
266 MHz
Pentium 4
or Celeron
DDR266
Pentium 4
Celeron
533 or 400 MHz 266 MHz
400 MHz 266 MHz
The AIMB-744 does not support ECC (error checking and correction).
Memory modules with 9 SDRAM chips/side support ECC; modules with
8 chips/side do not support ECC.
1.9.2 Dual channel configuration
The four DIMM sockets are arranged in two channels: DIMM1 &
DIMM2 in channel A; DIMM3 & DIMM4 in channel B. To enable dual
channel operation, please install a matched pair of DIMMs in DIMM1 &
DIMM3 (green sockets). If additional memory is to be used, another
matched pair of DIMMs have to be installed in DIMM2 & DIMM4 (pur-
ple sockets).
"Matched pair of DIMMs" means: same in speed (DDR266, DDR333,
DDR400), same in size (128MB, 256MB, 512MB or 1GB), same in chip
density (128 Mb, 256Mb or 512Mb and same in CSA latency. Any other
memory configuration will result in single channel memory operation.
1.10 Memory Installation Procedures
To install DIMMs, first make sure the two handles of the DIMM socket
are in the "open" position. i.e. The handles lean outward. Slowly slide the
DIMM module along the plastic guides on both ends of the socket. Then
press the DIMM module right down into the socket, until you hear a
click. This is when the two handles have automatically locked the mem-
ory module into the correct position of the DIMM socket. To remove the
memory module, just push both handles outward, and the memory mod-
ule will be ejected by the mechanism in the socket.
15
1.11 Cache Memory
Since the second-level (L2) cache has been embedded into the Intel®
socket 478 Pentium® 4/Celeron™ processor, you do not have to take
care of either SRAM chips or SRAM modules. The built-in second-level
cache in the processor yields much higher performance than the external
cache memories. The cache size in the Intel ® Pentium ® 4 processor is
512/1024 KB. In the Celeron CPU, the cache size is 128/256KB.
1.12 Processor Installation
The AIMB-744 is designed for Intel Pentium® 4 processor/Celeron™
(socket 478) up to 3.4/2.8 GHz with HT technology.
Note:
Slim Heatsink & Fan is available from Advan-
tech. Please contact with Advantech's sales
representative if needed.
Step 1 : Lift the processor socket lever
Step 2 : Align the corner having the triangle marking on the processor
with the corner where the lever is attached to the socket
Step 3 : Lower the lever to its original position
AIMB-744 User’s Manual
16
2
Connecting
Peripherals
Chapter 2 Connecting Peripherals
2.1 Introduction
You can access most of the connectors from the top of the board while it
is installed in the chassis. If you have a number of cards installed or have
a packed chassis, you may need to partially remove the card to make all
the connections.
2.2 Primary (CN1) and Secondary (CN2) IDE Connec-
tors
CN1
CN2
You can attach up to four IDE (Integrated Drive Electronics) drives to the
AIMB-744’s built-in controller. The primary (CN1) and secondary (CN2)
connectors can each accommodate two drives.
Wire number 1 on the cable is red or blue and the other wires are gray.
Connect one end to connector CN1 or CN2 on the motherboard. Make
sure that the red/blue wire corresponds to pin 1 on the connector (in the
upper right hand corner). See Chapter 1 for help finding the connector.
Unlike floppy drives, IDE hard drives can connect in either position on
the cable. If you install two drives to a single connector, you will need to
set one as the master and the other as the slave. You do this by setting the
jumpers on the drives. If you use just one drive per connector, you should
set each drive as the master. See the documentation that came with your
drive for more information.
Connect the first hard drive to the other end of the cable. Wire 1 on the
cable should also connect to pin 1 on the hard drive connector, which is
labeled on the drive circuit board. Check the documentation that came
with the drive for more information.
AIMB-744 User’s Manual
18
Connect the second hard drive to the remaining connector (CN2 or CN1),
in the same way as described above. The secondary IDE shares the same
resource with CF (CompactFlash) socket. CF card is only available for
master mode. While setting CF as master, the other IDE device con-
nected to secondary IDE can work as a slave device only and vice versa.
2.3 Floppy Drive Connector (CN3)
CN3
You can attach up to two floppy disk drives to the AIMB-744's onboard
controller. You can use 3.5" (720 KB, 1.44 MB) drives.
The motherboard comes with a 34-pin daisy-chain drive connector cable.
On one end of the cable is a 34-pin flat-cable connector. On the other end
are two sets of 34-pin flat-cable connector (usually used for 3.5" drives).
The set on the end (after the twist in the cable) connects to the A: floppy
drive. The set in the middle connects to the B: floppy drive.
2.4 Parallel Port (CN4)
CN4
The parallel port is normally used to connect the motherboard to a printer.
The AIMB-744 includes an onboard parallel port, accessed through a 26-
pin flat-cable connector, CN4.
19
Chapter2
2.5 USB Ports (CN6; shared with CN32)
CN6/CN63
The AIMB-744 provides up to four ports of USB (Universal Serial Bus)
interface, which gives complete Plug & Play and hot swapping for up to
127 external devices.The USB interface complies with USB Specification
Rev. 2.0 support transmission rate up to 480 Mbps and is fuse-protected.
The USB interface can be disabled in the system BIOS setup.
Limitation: On 00A1 version, when CN6 is used, both transmission rates
of CN6 and CN32 will drop to 24 Mbps.
2.6 Serial Ports (COM1 : CN9; COM2 : CN38 ; COM3 :
CN10 ; COM4 : COM23)
CN9
CN10
The AIMB-744 offers two serial ports and two onboard connectors, CN9
as COM1, CN38 as COM2, CN10 as COM3 and CN23 as COM4. These
ports can connect to serial devices, such as a mouse or a printer, or to a
communications network.
The IRQ and address ranges for both ports are fixed. However, if you
want to disable the port or change these parameters later, you can do this
in the system BIOS setup.
AIMB-744 User’s Manual
20
Different devices implement the RS-232 standard in different ways. If
you are having problems with a serial device, be sure to check the pin
assignments for the connector.
2.7 PS/2 Keyboard and Mouse Conn (CN11)
CN11
Two 6-pin mini-DIN connectors (CN11) on the motherboard provide
connection to a PS/2 keyboard and a PS/2 mouse, respectively.
2.8 External Keyboard Connector (CN12)
CN12
In addition to the PS/2 mouse/keyboard connector on the AIMB-744's
rear plate, there is also an extra onboard external keyboard connector.
This gives system integrators greater flexibility in designing their sys-
tems.
21
Chapter2
2.9 CPU Fan Connector (CN14)
CN14
If fan is used, this connector supports cooling fans of 500mA (6W) or
less.
2.10 System FAN connector (CN15 and CN37)
If fan is used, this connector supports cooling fans of 500mA (6W) or less.
2.11 Front Panel Connectors (CN16, 17, 18, 19, 21&29)
There are several external switches to monitor and control the AIMB-744
CN16,17,18,19,21,29
2.11.1 Power LED and Keyboard Lock (CN16)
AIMB-744 User’s Manual
22
CN16 is a 5-pin connector for the power on LED. Refer to Appendix B
for detailed information on the pin assignments. If a PS/2 or ATX power
supply is used, the system's power LED status will be as indicated below:
Table 2.1: PS/2 or ATX power supply LED status
Power mode
System On
LED (PS/2 power)
On
LED (ATX power)
On
System Suspend
System Off
Fast flashes
Off
Fast flashes
Slow flashes
2.11.2 External speaker (CN17)
CN17 is a 4-pin connector for an extenal speaker. If there is no external
speaker, the AIMB-744 provides an onboard buzzer as an alternative. To
enable the buzzer, set pins 3-4 as closed
2.11.3 Reset (CN18)
Many computer cases offer the convenience of a reset button. Connect the
wire from the reset button
2.11.4 HDD LED (CN19)
You can connect an LED to connector CN19 to indicate when the HDD is
active.
2.11.5 ATX soft power switch (CN21)
If your computer case is equipped with an ATX power supply, you should
connect the power on/off button on your computer case to CN21. This
connection enables you to turn your computer on and off.
23
Chapter2
2.11.6 SM Bus Connector (CN29)
This connector is reserved for Advantech's SNMP-1000 HTTP/SNMP
Remote System Manager. The SNMP-1000 allows users to monitor the
internal voltages, temperature and fans from a remote computer through
an Ethernet network.
CN29 can be connected to CN19 of SNMP-1000. Please be careful about
the pin assignments, pin 1 must be connected to pin 1 and pin2 to pin 2 on
both ends of cable.
2.12 H/W Monitor Alarm (CN22)
To enable or disable the function of buzzer.
2.13 USB and LAN ports (CN31 and CN32)
CN32 CN31
The AIMB-744 provides up to four USB (Universal Serial Bus) ports,
which gives complete Plug & Play and hot swapping for up to 127 exter-
nal devices.The USB interface complies with USB Specification Rev. 2.0
support transmission rate up to 480 Mbps and is fuse-protected. The USB
interface can be disabled in the system BIOS setup.
AIMB-744 User’s Manual
24
The AIMB-744 is equipped with one or two high-performance 10/100/
1000 Mbps Ethernet LANs. They are supported by all major network
operating systems. The RJ-45 jacks on the rear plate provide convenient
or 10/100/1000 Base-T operation.
2.14 Line Out, Mic IN connector (CN55)
The Line Out is to output the audio signal to external audio device, like
speakers or headphones. The Mic IN is to input the audio signal via
microphones.
2.15 Audio input from CD-ROM (CD IN; CN56)
The CD IN is a connector for CD-ROM to input the audio signal.
25
Chapter2
2.16 Aux Line-In connector (AUX IN; CN57)
The connector is for audio device with Line-in connector.
2.17 Front Panel audio connector (FP AUDIO; CN59)
The FPAUDIO is a front panel audio connector compliant with Intel®
Front Panel I/O Connectivity Design Guide. To direct the audio signal
output to the rear audio ports, the 5 and 6 pins, 9 and 10 pins must be
shorted by jumper to activate the rear panel audio function.
AIMB-744 User’s Manual
26
2.18 8-pin Alarm Board Connector (CN62)
The 8-pin alarm board connector is for Advantech chassis with alarm
board.
2.19 Case Open Connector (CN64)
The 2-pin case open connector is for chassis with case open censor. While
opening the case, the buzzer on motherboard will ring.
2.20 Serial ATA interface (SA0 and SA1)
In addition to the two EIDE interfaces (up to four devices), the AIMB-
744 features high performance serial ATA interface (up to 150MB/s)
27
Chapter2
which eases cabling to hard drives with thin and long cables.
2.21 Connecting to SNMP-1000 remote manager
Use the 6-pin to 8-pin cable to connect the motherboard to SNMP-1000.
This cable comes with the SNMP-1000.
2.22 Auxiliary 4-pin power connector (ATX1)
To ensure the sufficiency of power supply for Pentium® 4 motherboard,
one auxiliary 4 pin power connector is available on AIMB-744. ATX1
must be used to provide sufficient 12V to ensure the stable operation of
the system.
AIMB-744 User’s Manual
28
3
Award BIOS Setup
Chapter 3 Award BIOS Setup
3.1 Introduction
Award’s BIOS ROM has a built-in setup program that allows users to
modify the basic system configuration. This type of information is stored
in battery-backed memory (CMOS RAM) so that it retains the setup
information when the power is turned off.
3.1.1 CMOS RAM Auto-backup and Restore
The CMOS RAM is powered by an onboard button cell battery. When
you finish BIOS setup, the data in CMOS RAM will be automatically
backed up to Flash ROM. If operation in harsh industrial environment
cause a soft error, BIOS will recheck the data in CMOS RAM and auto-
matically restore the original data in Flash ROM to CMOS RAM for
booting.
Note:
If you intend to change the CMOS setting with-
out restoring the previous backup, you have to
click on "DEL" within two seconds of the
"CMOS checksum error..." display screen mes-
sage appearing. Then enter the "Setup" screen
to modify the data. If the "CMOS checksum
error..."message appears again and again,
please check to see if you need to replace the
battery in your system.
AIMB-744 User’s Manual
30
3.2 Entering Setup
Turn on the computer and press <Del> to allow you to enter the BIOS
setup.
Figure 3.1: Award BIOS Setup initial screen
3.3 Standard CMOS Setup
Choose the “Standard CMOS Features” option from the “Initial Setup
Screen” menu, and the screen below will be displayed. This menu allows
users to configure system components such as date, time, hard disk drive,
floppy drive, display, and memory.
Figure 3.2: Standard CMOS features screen
31
Chapter3
3.4 Advanced BIOS Features
The “Advanced BIOS Features” screen appears when choosing the
“Advanced BIOS Features” item from the “Initial Setup Screen” menu. It
allows the user to configure the AIMB-744 according to his particular
requirements. Below are some major items that are provided in the
Advanced BIOS Features screen. A quick booting function is provided
for your convenience. Simply enable the Quick Booting item to save
yourself valuable time
Figure 3.3: Advanced BIOS features screen
3.4.1 Hard Disk Boot Priority
Select hard disk boot device priority.
3.4.2 Virus Warning
Enable virus warning, the commands are "Enabled" or "Disabled".
3.4.3 CPU L1 & L2 Cache
Enabling this feature speeds up memory access. The commands are
“Enabled” or “Disabled.”
3.4.4 Hyper-Threading Technology
While using CPU with Hyper-Threading technology, you can select
"Enabled" to enable Hyper Threading Technology in OS which supports
Hyper-Threading Technology or select "Disabled" for other OS which do
not support HT technology.
AIMB-744 User’s Manual
32
3.4.5 Quick Power On Self Test
Allows the system to skip certain tests while booting. This will decrease
the time needed to boot the system.
3.4.6 First/Second/Third Boot Device
The BIOS tries to load the OS with the devices in the sequence selected.
Choices are: "Floppy", "LS120", "HDD-0", "SCSI", "CDROM", "HDD-
1", "HDD-2", "HDD-3", "ZIP100", "USB-FDD", "USB-ZIP", "USB-
CDROM", "USB-HDD", "LAN", "Disabled".
3.4.7 Boot Other Device
Choose other device to boot, the choice is "Enabled" or "Disabled".
3.4.8 Swap Floppy Drive
If the system has two floppy drives, choose "Enabled" to assign physical
drive B to logical drive A and vice-versa. The commands are “Enabled”
or “Disabled.”
3.4.9 Boot UP Floppy Seek
Selection of the command “Disabled” will speed the boot up. Selection of
“Enabled” searches disk drives during boot up.
3.4.10 Boot Up NumLock Status
This feature selects the “power on” state for NumLock. The commands
are “Off” or “On.”
3.4.11 Gate A20 Option
"Normal":
A pin in the keyboard controller controls GateA20.
"Fast" (Default): Lets chipset control GateA20.
3.4.12 Typematic Rate Setting
The typematic rate is the rate key strokes repeat as determined by the key-
board controller. The commands are “Enabled” or “Disabled”. Enabling
allows the typematic rate and delay to be selected.
3.4.13 Typematic Rate (Chars/Sec)
BIOS accepts the following input values (characters/second) for type-
matic rate: 6, 8, 10, 12, 15, 20, 24, 30.
3.4.14 Typematic Delay (msec)
Typematic delay is the time interval between the appearance of two con-
secutive characters, when holding down a key. The input values for this
category are: 250, 500, 750, 1000 (msec).
33
Chapter3
3.4.15 Security Option
Select whether the password is required every time the system boots or
only when you enter setup.
"System"
The system will not boot, and access to Setup will be denied
if the correct password is not entered at the prompt.
"Setup"
The system will boot, but access to Setup will be denied if
the correct password is not entered at the prompt.
Note:
To disable security, select “PASSWORD SET-
TING” in the main menu. At this point, you will
be asked to enter a password. Simply press
<Enter> to disable security. When security is
disabled, the system will boot, and you can
enter Setup freely.
3.4.16 APIC Mode
This setting allows to enable the APIC mode, the choice is “Disabled” or
“Enabled.”
3.4.17 MPS Version Control For OS
This reports if an FDD is available for Windows 95. The selections are
"1.1" or "1.4."
3.4.18 OS Select For DRAM > 64MB
Select OS2 only if you are running OS/2 operating system with greater
than 64MB of RAM on the system. Commands are “Non-OS2” or “OS2.”
3.5 Advanced Chipset Features
By choosing the “Advanced Chipset Features” option from the “Initial
Setup Screen” menu, the screen below will be displayed. This sample
screen contains the manufacturer’s default values for the AIMB-744, as
shown in Figure 3-4:
Note:
DRAM default timings have been carefully cho-
sen and should ONLY be changed if data is
being lost. Please first contact technical sup-
port.
AIMB-744 User’s Manual
34
Figure 3.4: Advanced chipset features screen
3.5.1 DRAM Timing Selectable
This item allows you to control the DRAM speed. The selections are
"Manual" or "By SPD".
3.5.2 CAS Latency Time
This controls the latency between DDR RAM read command and the
time that the data actually becomes available. Leave this on the default
setting. The options are "2", "2.5" or "3".
3.5.3 Active to Precharge Delay
This item allows you to select the value in this field, depending on
whether the board has paged DRAMs or EDO (extended data output)
DRAMs. The Choice: "8", "7", "6" and "5".
3.5.4 DRAM RAS# to CAS# Delay
In order to improve performance, certain space in memory is reserved for
ISA cards. This memory must be mapped into the memory space below
16MB. The Choice: "4", "3" and ''2".
3.5.5 DRAM RAS# Precharge
This controls the idle clocks after issuing a precharge command to
DRAM. Leave this on the default setting. The choice : "4", "3" and "2".
3.5.6 Memory Frequency
To adjust the frequency of memory. The choice : "DDR266", "DDR333",
"DDR400" and "Auto".
35
Chapter3
3.5.7 System BIOS Cacheable
Selecting Enabled allows caching of the system BIOS ROM at F0000h-
FFFFFh, resulting in better system performance. However, if any pro-
gram writes to this memory area, a system error may occur. The Choices:
"Enabled", "Disabled".
3.5.8 Video Bios Cacheable
Selecting Enabled allows caching of the video BIOS, resulting in better
system performance. However, if any program writes to this memory
area, a system error may occur. The Choices: "Enabled", "Disabled".
3.5.9 Memory Hole At 15M-16M
Enabling this feature reserves 15 MB to 16 MB memory address space
for ISA expansion cards that specifically require this setting. This makes
memory from 15 MB and up unavailable to the system. Expansion cards
can only access memory up to 16 MB. The default setting is “Disabled.”
3.5.10 Delay Prior to Thermal
Select the period if user wants to lower the CPU speed when CPU tem-
perature is too high. The choice: "4 Min", "8 Min", "16 Min" and "32
Min".
3.5.11 AGP Aperture Size (MB)
Select the size of Accelerated Graphics Port (AGP) aperture. The aper-
ture is a portion of the PCI memory address range dedicated for graphics
memory address space. Host cycles that hit the aperture range are for-
warded to the AGP without any translation. The Choice : "4", "8", "16",
"32", "64", "128", and "256".
3.5.12 On-Chip Frame Buffer Size
User can select frame buffer size. Option is :"1MB", "8MB" and "16MB".
AIMB-744 User’s Manual
36
3.6 Integrated Peripherals
Figure 3.5: Integrated peripherals
Figure 3.6: On-Chip IDE Device
37
Chapter3
3.6.1 IDE HDD Block Mode
If your IDE hard drive supports block mode select Enabled for automatic
detection of the optimal number of block read/writes per sector the drive
can support.
3.6.2 On-Chip IDE Device
IDE Primary (Secondary) Master/Slave PIO/UDMA Mode (Auto) Each
channel (Primary and Secondary) has both a master and a slave, making
four IDE devices possible. Because each IDE device may have a different
Mode timing (0, 1, 2, 3, 4), it is necessary for these to be independent.
The default setting “Auto” will allow auto detection to ensure optimal
performance.
3.6.3 On-Chip Serial ATA
Choose the status of serial ATA, the default setting is "Auto" which let
system to arrange all parallel and serial ATA resource automatically. The
"Disabled" will disable SATA controller. The "Combined Mode" will
combine PATA and SATA, and max of 2 IDE drives in each channel.
The "Enhanced Mode" will enable both SATA and PATA, and max of 6
IDE drives are supported. The "SATA Only" means SATA is operating in
legacy mode.
3.6.4 Serial ATA Port0/Port1 Mode
Select the mode for SATA port0 and SATA port1. The choices are "Pri-
mary Master", "Primary Slave", "Secondary Master", "Secondary Slave",
"SATA0 Master" and "SATA1 Master".
Figure 3.7: Onboard Device
AIMB-744 User’s Manual
38
3.6.5 USB Controller
Select Enabled if your system contains a Universal Serial Bus (USB) con-
troller and you have USB peripherals. The choices: "Enabled", "Dis-
abled".
3.6.6 USB 2.0 Controller
This entry is for disable/enable USB2.0 controller only. The BIOS itself
may/may not have high speed USB support. If the BIOS has high speed
USB support built in, the support will be automatically turn on when high
speed device were attached. The Choice : "Enabled" and "Disabled".
3.6.7 USB Keyboard/Mouse Support
Select Enabled if user plan to use an USB keyboard. The choice:
"Enabled", "Disabled".
3.6.8 AC97 Audio
Select Disable if you do not want to use AC-97 audio. Option is "Auto",
"Disabled".
3.6.9 Onboard LAN1 Control
Options are "Enabled" and "Disabled" Select Disable if user does not
want to use onboard LAN controller1
3.6.10 Onboard LAN2 Control
Options are "Enabled" and "Disabled" Select Disable if user does not
want to use onboard LAN controller2
3.6.11 Onboard LAN Boot ROM
Decide whether to invoke the boot ROM of the onboard LAN chip. The
Choice : "Disabled", "LAN1".
Figure 3.8: SuperIO Device
39
Chapter3
3.6.12 Onboard FDC Controller
When enabled, this field allows you to connect your floppy disk drives to
the onboard floppy disk drive connector instead of a separate controller
card. If you want to use a different controller card to connect the floppy
disk drives, set this field to Disabled.
3.6.13 Onboard Serial Port 1
The settings are "3F8/IRQ4", "2F8/IRQ3", "3E8/IRQ4", "2E8/ IRQ3"
and "Disabled" for the on-board serial connector.
3.6.14 Onboard Serial Port 2
The settings are "3F8/IRQ4", "2F8/IRQ3", "3E8/IRQ4", "2E8/ IRQ3"
and "Disabled" for the on-board serial connector.
3.6.15 Onboard Serial Port 3
The setting are "(3F8, 2F8, 3E8, 2E8, Disable)/(IRQ10, IRQ11, IRQ3,
IRQ4, IRQ5, IRQ7)" for the onboard serial connecto.
3.6.16 Onboard Serial Port 4
The setting are "(3F8, 2F8, 3E8, 2E8, Disable)/(IRQ10, IRQ11, IRQ3,
IRQ4, IRQ5, IRQ7)" for the onboard serial connecto.
3.6.17 UART Mode Select
This item allows you to select UART mode. The choices: "IrDA",
"ASKIR", "Normal".
3.6.18 RxD, TxD Active
This item allows you to determine the active of RxD, TxD. The Choices:
“Hi, Hi,” “Lo, Lo,” “Lo, Hi,” “Hi, Lo.”
3.6.19 Onboard Parallel Port
This field sets the address of the on-board parallel port connector. You
can select either "378/IRQ7", "278/IRQ5", "3BC/IRQ7", or "Disabled". If
you install an I/O card with a parallel port, make sure there is no conflict
in the address assignments. The single board computer can support up to
three parallel ports, as long as there are no conflicts for each port.
3.6.20 Parallel Port Mode
This field allows you to set the operation mode of the parallel port. The
setting “Normal” allows normal speed operation, but in one direction
only. “EPP” allows bidirectional parallel port operation at maximum
speed. “ECP” allows the parallel port to operate in bi-directional mode
and at a speed faster than the maximum data transfer rate. “ECP + EPP”
allows normal speed operation in a two-way mode.
3.6.21 EPP Mode Select
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40
This field allows you to select EPP port type 1.7 or 1.9. The choices:
"EPP1.9", "EPP1.7".
3.6.22 ECP Mode Use DMA
This selection is available only if you select “ECP” or “ECP + EPP” in
the Parallel Port Mode field. In ECP Mode Use DMA, you can select
DMA channel 1, or DMA channel 3. Leave this field on the default set-
ting.
3.6.23 PWRON After PWR-Fail
To setup the status of system after power fail. The "Off" will keep system
power off after power fail, the "On" will boot up the system after fail, and
the "Former-Sts" will return to the status before power fail.
3.7 Power Management Setup
The power management setup controls the single board computer's
“green” features to save power. The following screen shows the manufac-
turer’s defaults.
Figure 3.9: Power management setup screen (1)
3.7.1 ACPI function
The choice: "Enabled", "Disabled".
3.7.2 ACPI Suspend Type
41
Chapter3
The Choice : "S1(POS)", and "S3(STR)". While selecting "S3(STR)", the
"Run VGABIOS if S3 Resume" and "Resume on USB from S3" will be
active for selection.
3.7.3 Power Management
This category allows you to select the type (or degree) of power saving
and is directly related to the following modes:
1. HDD Power Down
2. Suspend Mode
There are three selections for Power Management, and they have fixed
mode settings.
Min Saving
Minimum power management., Suspend Mode = 1 hr.,
and HDD Power Down = 15 min.
Max Saving
Maximum power management., Suspend Mode = 1 min.,
and HDD Power Down = 1 min.
User Defined
(Default)
Allows you to set each mode individually. When not dis-
abled, each of the ranges are from 1 min. to 1 hr. except
for HDD Power Down which ranges from 1 min. to 15 min.
and disable.
3.7.4 Video Off Method
To select the method to off the video. The Choice : "Blank Screen", "V/H
SYNC+ Blank", "DPMS".
3.7.5 Video Off In Suspend
When system is in suspend, video will turn off. The choices are "No" and
"Yes".
3.7.6 Suspend Type
The Choice : "Stop Grant", "PwrOn Suspend".
3.7.7 Modem Use IRQ
This determines the IRQ in which the MODEM can use.The choices: "3",
"4", "5", "7", "9", "10", "11", "NA".
3.7.8 Soft-Off by PWR-BTTN
If you choose “Instant-Off”, then pushing the ATX soft power switch but-
ton once will switch the system to “system off” power mode. You can
choose “Delay 4 sec.” If you do, then pushing the button for more than 4
seconds will turn off the system, whereas pushing the button momentarily
(for less than 4 seconds) will switch the system to “suspend” mode.
3.7.9 CPU THRM-Throttling
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42
This field allows you to select the CPU THRM-Throttling rate. The
choices: "75.0%", "50.0%", and "25.0%".
3.7.10 Resume on LAN/PCI PME#
To enabled or disable the function to resume the system by PCI card or
LAN. The Choice : "Enabled", "Disabled".
3.7.11 Resume on Ring
This item allows you to wake up the system via COM port from the
remote host. The choices: "Enabled", "Disabled".
3.7.12 Resume on Alarm
The Choice : "Enabled", "Disabled".
3.7.13 Primary IDE 0 (1) and Secondary IDE 0 (1)
When Enabled, the system will resume from suspend mode if Primary
IDE 0 (1) or Secondary IDE 0 (1) is active. The choice: "Enabled", "Dis-
abled".
3.7.14 FDD, COM, LPT PORT
When Enabled, the system will resume from suspend mode if FDD, COM
port, or LPT port is active. The choice: "Enabled", "Disabled".
3.7.15 PCI PIRQ [A-D]#
When Enabled, the system will resume from suspend mode if interrupt
occurs. The choice: "Enabled", "Disabled".
3.8 PnP/PCI Configurations
Figure 3.10: PnP/PCI configurations screen
43
Chapter3
3.8.1 Reset Configuration Data
Default is Disable. Select Enable to reset Extended System Configuration
Data (ESCD) if you have installed a new add-on and system configura-
tion has caused such a conflict that OS cannot boot.
3.8.2 Resources Controlled By
The commands here are "Auto(ESCD)" or “Manual.” Choosing “manual”
requires you to choose resources from each following sub-menu.
"Auto(ESCD)" automatically configures all of the boot and Plug and Play
devices but you must be using Windows 95 or above.
3.8.3 PCI/VGA Palette Snoop
This is left at “Disabled.”
3.9 PC Health Status
3.9.1 CPU Warning Temperature
This item will prevent the CPU from overheating. The choices are: "Dis-
abled", "50C/122F", "53C/127F", "56C/133F", "60C/140F", "63C/145F",
"66C/151F", "70C/158F".
Figure 3.11: PC health status screen
3.9.2 Current System Temp
This shows you the current temperature of system.
3.9.3 Current CPU Temperature
This shows you the current CPU temperature.
AIMB-744 User’s Manual
44
3.9.4 Current CPUFAN Speed
This shows you the current CPUFAN operating speed.
3.9.5 VCORE, +1.5V, VCC3, +5V, +12V, -12V, -5V,
VBAT(V), 5VSB(V)
This shows you the voltage of VCORE, +1.5V, VCC3, +5V, +12V, -12V,
-5V, VBAT(V), and 5VSB(V).
3.10 Spread Spectrum Control
Figure 3.12: Spread Spectrum Control screen
3.10.1 CPU Clock Ratio
Key in a DEC number to setup the CPU Clodk Ratio. (Min=8; Max=50).
This item only shows up under some special situations.
3.10.2 Spread Spectrum
To enable/disable the spread spectrum. The Choice : "Disabled", "-
0.40%", "- 0.50%", "- 0.60%" and "- 1.00%".
3.11 Password Setting
To change the password:
1.
Choose the “Set Password” option from the “Initial Setup Screen”
menu and press <Enter>.
The screen will display the following message:
45
Chapter3
Please Enter Your Password
Press <Enter>.
2. If the CMOS is good or if this option has been used to change the
default password, the user is asked for the password stored in the CMOS.
The screen will display the following message:
Please Confirm Your Password
Enter the current password and press <Enter>.
3.
After pressing <Enter> (ROM password) or the current password
(user-defined), you can change the password stored in the CMOS. The
password must be no longer than eight (8) characters.
Remember, to enable the password setting feature, you must first select
either “Setup” or “System” from the “Advanced BIOS Features” menu.
3.12 Save & Exit Setup
If you select this and press <Enter>, the values entered in the setup utili-
ties will be recorded in the CMOS memory of the chipset. The micropro-
cessor will check this every time you turn your system on and compare
this to what it finds as it checks the system. This record is required for the
system to operate.
3.13 Exit Without Saving
Selecting this option and pressing <Enter> lets you exit the setup program
without recording any new values or changing old ones.
AIMB-744 User’s Manual
46
4
Chipset Software
Installation Utility
Chapter 4 Chipset Software Install Utility
4.1 Before you begin
To facilitate the installation of the enhanced display device drivers and
utility software, you should read the instructions in this chapter carefully
before you attempt installation. The device drivers for the AIMB-744
board are located on the software installation CD. The auto-run function
of the driver CD will guide and link you to the utilities and device drivers
under a Windows system. The Intel® Chipset Software Installation Util-
ity is not required on any systems running Windows NT 4.0. Updates are
provided via Service Packs from Microsoft*.
Note:
The files on the software installation CD are
compressed. Do not attempt to install the driv-
ers by copying the files manually. You must use
the supplied SETUP program to install the driv-
ers.
Before you begin, it is important to note that most display drivers need to
have the relevant software application already installed in the system
prior to installing the enhanced display drivers. In addition, many of the
installation procedures assume that you are familiar with both the rele-
vant software applications and operating system commands. Review the
relevant operating system commands and the pertinent sections of your
application software’s user’s manual before performing the installation.
4.2 Introduction
The Intel® Chipset Software Installation (CSI) utility installs to the target
system the Windows INF files that outline to the operating system how
the chipset components will be configured. This is needed for the proper
functioning of the following features:
• Core PCI and ISA PnP services.
• AGP support.
• IDE Ultra ATA 100/66/33 and Serial ATA interface support.
• USB 1.1/2.0 support (USB 2.0 driver needs to be installed separately
for Win98)
AIMB-744 User’s Manual
48
• Identification of Intel ® chipset components in the Device Manager.
• Integrates superior video features. These include filtered sealing of
720 pixel DVD content, and MPEG-2 motion compensation for soft-
ware DVD
Note:
This utility is used for the following versions of
Windows system, and it has to be installed
before installing all the other drivers:
Windows 98SE
Windows 2000
Windows Me
Windows XP
4.3 Windows XP Driver Setup
1.
Insert the driver CD into your system's CD-ROM drive. In a few
seconds, the software installation main menu appears. Move the
mouse cursor over the "Install" button under the "CSI UTILITY"
heading, a message pops up telling you to install the CSI utility
before other device drivers, as shown in the following figure. Click
on this button. Taking Windows XP as example.
49
Chapter4
2.
Click "Next" when you see the following message.
3.
Click "Yes" when you see the following message.
AIMB-744 User’s Manual
50
4.
Click "Next" when you see the following message.
5.
When the following message appears, click "Finish" to complete
the installation and restart Windows.
51
Chapter4
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52
5
LAN Configuration
Chapter 5 LAN Configuration
5.1 Introduction
The AIMB-744 features the 32-bit 10/100/1000 Mbps Ethernet network
interface. This interface supports bus mastering architecture and auto-
negotiation features. Therefore standard twisted-pair cabling with RJ-45
connectors for 10 Mbps, 100 Mbps and 1000 Mbps connections can be
used. Extensive driver support for commonly-used network systems is
also provided.
5.2 Features
• Optional single/dual Intel 82547/82541 10/100/1000 Base-T Ethernet
LAN controller
• Supports Wake-on-LAN remote control function.
• PCI Bus Master complies with PCI Rev. 2.2
• MAC & PHY (10/100/1000 Mbps) interfaces.
• Complies with 1000Base-T, 100Base-TX, and 10Base-T applications.
• Fully supports 1000Base-T, 100Base-TX, and 10Base-T operation.
• Single RJ-45 connector gives auto-detection of 10 Mbps, 100 Mbps, or
1000 Mbps network data transfer rates and connected cable types.
• Plug and Play.
• Enhancements on ACPI & APM.
• Complies with PCI Bus Power Management Interface Rev. 1.1,
• ACPI Rev. 2.0, and Device Class Power Management Rev. 1.0.
AIMB-744 User’s Manual
54
5.3 Installation
Note:
Before installing the LAN drivers, make sure the
CSI utility has been installed in your system.
See Chapter 4 for information on installing the
CSI utility.
The AIMB-744's onboard Ethernet interface supports all major network
operating systems. However, the installation procedure varies with differ-
ent operating systems. In the following sections, refer to the one that pro-
vides driver setup procedure for the operating system you are using.
5.4 Win XP Driver Setup (Intel 82547/41)
1.
Insert the driver CD into your system's CD-ROM drive. In a few
seconds, the software installation main menu appears, as shown in
the following figure. Under the "LAN Drivers" heading, click on
the "Install" to complete installation procedure.
55
Chapter5
2.
Select "I accept the terms in the license agreement" and click
"Next" to continue.
3.
Click "Next" to continue.
AIMB-744 User’s Manual
56
4.
Click "Install Software" to start the installation procedure.
5.
The driver will be installed automatically and the LAN function
will be enabled after the installation.
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Chapter5
AIMB-744 User’s Manual
58
6
Onboard Security
Setup
Chapter 6 Onboard Security Setup
6.1 Introduction
The AIMB-744's hardware monitor is designed with Winbond W83782D.
Onboard security (OBS) functions monitor key hardware. They help you
maintain your system's stability and durability. The AIMB-744 can moni-
tor 5 sets of system positive voltages, 2 sets of system negative voltages,
CPU cooling fan speed, and CPU temperature. The positive system volt-
age sets which can be monitored include:
• CPU core voltage: 1.3 V ~ 3.3 V, according to Intel specifications.
• Transmission voltage from CPU to chipset: typically 1.8 V.
• Chipset voltage: typically 3.3 V.
• Main voltage: +5 V, +12 V.
The negative system voltage sets which can be monitored include:
• Main voltage: -5 V, -12 V.
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60
6.2 Windows XP Driver Setup
1.
Insert the driver CD into your system's CD-ROM drive. In a few
seconds, the software installation main menu appears, as shown in
the following figure. Click on the "Install" button under the "OBS
DRIVERS" heading.
2.
Click "Next" when you see the following message.
61
Chapter6
3.
Click "Next" when you see the following message.
4.
Click "Next" when you see the following message.
AIMB-744 User’s Manual
62
5.
Click "Next" to continue.
6.
Click "Finish" when you see the following message.
63
Chapter6
6.3 Using the OBS Hardware Doctor Utility
After completing the setup, all the OBS functions are permanently
enabled. When a monitored reading exceeds safe limits, a warning mes-
sage will be displayed and an error beep tone will activate to attract your
attention.
OBS Hardware Doctor will show an icon on the right side of the bottom
window bar. This icon is the "Terminate and Stay Resident" (TSR) icon.
It will permanently remain in the bottom window bar, and will activate
warning signals when triggered by the onboard security
system.
You can view or change values for various OBS settings by running this
utility:
1.
From the desktop of Windows, click on "Start" and select "Pro-
grams" , select "Winbond HWDoctor" and click "HWDOCTOR."
2.
It is recommended that you load the default values for all the OBS
settings. However, if desired, you can establish new conditions for
voltage, fan speed, and temperature.
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66
A
Programming the
Watchdog Timer
Appendix A Programming the watchdog
timer
A.1 Programming the Watchdog Timer
The AIMB-744's watchdog timer can be used to monitor system software
operation and take corrective action if the software fails to function after
the programmed period. This section describes the operation of the
watchdog timer and how to program it.
A.1.1 Watchdog timer overview
The watchdog timer is built-in the super I/O controller W83627HF. It
provides the following functions for user programming:
• Can be enabled and disabled by user's program.
• Timer can be set from 1 to 255 seconds or 1 to 255 minutes.
• Generates an interrupt or resets signal if the software fails to reset the
timer after time-out.
A.1.2 Reset/ Interrupt selection
The J2 jumper is used to select reset or interrupt (IRQ 11) in the event the
watchdog timer is tripped. See Chapter 1 for detailed jumper settings.
Note: The interrupt output of the watchdog timer is a low level
signal. It will be held low until the watchdog timer is
reset.
A.1.3 Programming the Watchdog Timer
The I/O port address of the watchdog timer is 2E(hex) and 2F(hex).
2E (hex) is the address port. 2F(hex) is the data port.
You must first assign the address of register by writing address value
into address port 2E(hex), then write/read data to/from the assigned
register through data port 2F (hex).
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68
Unlock W83627H
Select register of
watchdog timer
Enable the function of
the watchdog timer
Use the function of
the watchdog timer
Lock W83627HF
69
AppendixA
Watchdog Timer Registers
Address of register (2E) Attribute
Read/Write
Value (2F) and
description
87 (hex)
-----
Write this address to I/O
address port 2E (hex) twice
to unlock theW83627HF
07 (hex)
30 (hex)
write
write
Write 08 (hex) to select reg-
ister of watchdog timer.
Write 01 (hex) to enable the
function of the watchdog
timer. Disabled is set as
default.
F5 (hex)
write
Set seconds or minutes as
units for the timer.
Write 0 to bit 3: set sec-
ond as counting unit.
[default]
Write 1 to bit 3: set
minute as counting unit
F6 (hex)
write
0: stop timer [default]
01~FF (hex): The amount
of the count, in seconds or
minutes, depends on the
value set in register F5
(hex). This number decides
how long the watchdog
timer waits for strobe
before generating an inter-
rupt or reset signal. Writing
a new value to this register
can reset the timer to count
with the new value.
AIMB-744 User’s Manual
70
F7 (hex)
read/write
Bit 6: Write 1 to enable key-
board to reset the timer, 0
to disable.[default]
Bit 5: Write 1 to generate a
timeout signal immediately
and automatically return to
0. [default=0]
Bit 4: Read status of watch-
dog timer, 1 means timer is
""time out""."
AA (hex)
-----
Write this address to I/O
port 2E (hex) to lock the
watchdog timer.2
Table A.1: Watchdog timer registers
A.1.4 Example Program
1.
Enable watchdog timer and set 10 sec. as timeout interval
;-----------------------------------------------------------
Mov dx,2eh
Mov al,87h
Out dx,al
; Unlock W83627HF
Out dx,al
;-----------------------------------------------------------
Mov al,07h
; Select registers of watchdog timer
Out dx,al
Inc dx
Mov al,08h
Out dx,al
;-----------------------------------------------------------
Dec dx
; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
71
AppendixA
;-----------------------------------------------------------
Dec dx
; Set second as counting unit
Mov al,0f5h
Out dx,al
Inc dx
In
al,dx
And al,not 08h
Out dx,al
;-----------------------------------------------------------
Dec dx
; Set timeout interval as 10 seconds and start counting
Mov al,0f6h
Out dx,al
Inc dx
Mov al,10
Out dx,al
;-----------------------------------------------------------
Dec dx
; lock W83627HF
Mov al,0aah
Out dx,al
2.
Enable watchdog timer and set 5 minutes as timeout interval
;-----------------------------------------------------------
Mov dx,2eh
Mov al,87h
Out dx,al
; unlock W83627H
Out dx,al
;-----------------------------------------------------------
Mov al,07h
Out dx,al
Inc dx
; Select registers of watchdog timer
Mov al,08h
Out dx,al
AIMB-744 User’s Manual
72
;-----------------------------------------------------------
Dec dx
; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;-----------------------------------------------------------
Dec dx
; Set minute as counting unit
Mov al,0f5h
Out dx,al
Inc dx
In
al,dx
Or al,08h
Out dx,al
;-----------------------------------------------------------
Dec dx
; Set timeout interval as 5 minutes and start counting
Mov al,0f6h
Out dx,al
Inc dx
Mov al,5
Out dx,al
;-----------------------------------------------------------
Dec dx
; lock W83627HF
Mov al,0aah
Out dx,al
3.
Enable watchdog timer to be reset by mouse
;-----------------------------------------------------------
Mov dx,2eh
Mov al,87h
Out dx,al
; unlock W83627H
73
AppendixA
Out dx,al
;-----------------------------------------------------------
Mov al,07h
Out dx,al
Inc dx
; Select registers of watchdog timer
Mov al,08h
Out dx,al
;-----------------------------------------------------------
Dec dx
; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;-----------------------------------------------------------
Dec dx
; Enable watchdog timer to be reset by mouse
Mov al,0f7h
Out dx,al
Inc dx
In
al,dx
Or al,80h
Out dx,al
;-----------------------------------------------------------
Dec dx
; lock W83627HF
Mov al,0aah
Out dx,al
4.
Enable watchdog timer to be reset by keyboard
;-----------------------------------------------------------
Mov dx,2eh
Mov al,87h
Out dx,al
; unlock W83627H
AIMB-744 User’s Manual
74
Out dx,al
;-----------------------------------------------------------
Mov al,07h
Out dx,al
Inc dx
; Select registers of watchdog timer
Mov al,08h
Out dx,al
;-----------------------------------------------------------
Dec dx
; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;-----------------------------------------------------------
Dec dx
; Enable watchdog timer to be strobed reset by keyboard
Mov al,0f7h
Out dx,al
Inc dx
In
al,dx
Or al,40h
Out dx,al
;-----------------------------------------------------------
Dec dx
; lock W83627HF
Mov al,0aah
Out dx,al
5.
Generate a time-out signal without timer counting
;-----------------------------------------------------------
Mov dx,2eh
Mov al,87h
Out dx,al
; unlock W83627H
75
AppendixA
Out dx,al
;-----------------------------------------------------------
Mov al,07h
Out dx,al
Inc dx
; Select registers of watchdog timer
Mov al,08h
Out dx,al
;-----------------------------------------------------------
Dec dx
; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;-----------------------------------------------------------
Dec dx
; Generate a time-out signal
Mov al,0f7h
Out dx,al
Inc dx
;Write 1 to bit 5 of F7 register
In
al,dx
Or al,20h
Out dx,al
;-----------------------------------------------------------
Dec dx
; lock W83627HF
Mov al,0aah
Out dx,al
AIMB-744 User’s Manual
76
B
I/O Pin Assignments
Appendix B Pin Assignments
B.1 IDE Hard Drive Connector (CN1, CN2)
Table B.1: IDE hard drive connector (CN1, CN2)
Pin
Signal
Pin Signal
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
IDE RESET*
DATA 7
DATA 6
DATA 5
DATA 4
DATA 3
DATA 2
DATA 1
DATA 0
SIGNAL GND
DISK DMA REQUEST
IO WRITE
IO READ
IO CHANNEL READY
HDACKO*
IRQ14
ADDR 1
ADDR 0
HARD DISK SELECT 0* 38
IDE ACTIVE* 40
2
4
6
8
GND
DATA 8
DATA 9
DATA 10
DATA 11
DATA 12
DATA 13
DATA 14
DATA 15
N/C
GND
GND
GND
CSEL
GND
IDSC16-
PDIAG
ADDR 2
HARD DISK SELECT 1*
GND
10
12
14
16
18
20
22
24
26
28
30
32
34
36
33
35
37
39
* low active
AIMB-744 User’s Manual
78
B.2 Floppy Drive Connector (CN3)
3
4
1
2
33 31
34 32
Table B.2: Floppy drive connector (CN3)
Pin
1
3
5
Signal
GND
GND
N/C
Pin
2
4
Signal
FDHDIN*
N/C
FDEDIN*
6
7
9
11
13
15
17
19
21
23
25
27
29
31
33
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
8
INDEX*
MOTOR 0*
10
12
14
16
18
20
22
24
26
28
30
32
34
DRIVE SELECT 1*
DRIVE SELECT 0*
MOTOR 1*
DIRECTION*
STEP*
WRITE DATA*
WRITE GATE*
TRACK 0*
WRITE PROTECT*
READ DATA*
HEAD SELECT*
DISK CHANGE*
* low active
79
AppendixB
B.3 Parallel Port Connector (CN4)
13 12
26 25
2
1
15 14
Table B.3: Parallel port connector (CN4)
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
Signal
STROBE*
D0
D1
D2
D3
D4
D5
D6
Pin
14
15
16
17
18
19
20
21
22
23
24
25
26
Signal
AUTOFD*
ERR
INIT*
SLCTINI*
GND
GND
GND
GND
GND
D7
ACK*
BUSY
PE
GND
GND
GND
N/C
SLCT
* low active
AIMB-744 User’s Manual
80
B.4 USB Connector (CN6; shared with CN32)
1
2
3
4
5
6
7
8
9
10
Table B.4: USB1/USB2 connector (CN6; shared with CN32)
Pin
1
USB1 Signal
+5 V
Pin
6
USB2 Signal
+5 V
2
UV-
7
UV-
3
UV+
8
UV+
4
GND
9
GND
5
Chassis GND
10
N/CA
B.5 COM1/2/3/4 RS-232 Serial Port Interface (CN9/10/
23/38)
CN9&38
CN10&23
Table B.5: COM1/2 RS-232 serial port (CN9/38)
Pin
1
2
3
4
5
6
7
8
Signal
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
81
AppendixB
9
RI
B.6 Keyboard and Mouse Connnector (CN11)
Table B.6: Keyboard and mouse connector (CN11)
Pin
1
2
Signal
KB DATA
N/C
3
GND
4
5
6
KB VCC
KB CLK
N/C
B.7 COM3/4 serial port connector ( CN10/23)
Table B.7: COM3/4 serial port connector ( CN10/23)
Pin
1
2
3
4
5
6
7
Signal
DCD
DSR
RXD
RTS
TXD
CTS
DTR
AIMB-744 User’s Manual
82
8
9
RI
GND
B.8 External Keyboard Connector (CN12)
Table B.8: External keyboard connector (CN12)
Pin
1
Signal
CLK
2
3
DATA
NC
4
5
GND
VCC
B.9 CPU/System Fan Power Conn (CN14/15/37)
Table B.9: CPU/System Fan Power Conn (CN14/15/37)
Pin
1
Signal
GND
2
+12V
3
Detect
83
AppendixB
B.10 Power LED (CN16)
You can use an LED to indicate when the motherboard is on. Pin 1 of
CN16 supplies the LED's power, and Pin 3 is the ground.
Table B.10: Power LED and keylock conn (CN16)
Pin
1
Function
LED power (+5 V)
2
NC
3
4
GND
NC
5
GND
B.11 External Speaker Connector (CN17)
The motherboard has its own buzzer. You can also connect it to the exter-
nal speaker on your computer chassis.
Table B.11: External Speaker Connector (CN17)
Pin
1
Function
Buzzer
2
NC
3
Buzzer
4
Speaker out
AIMB-744 User’s Manual
84
B.12 Reset Connector (CN18)
1
Table B.12: Reset connector (CN18)
Pin
1
2
Signal
RESET
GND
B.13 HDD LED Connector (CN19)
1
Table B.13: HDD LED connector (CN19)
Pin
1
2
Signal
VCC (LED+)
IDE LED (LED-)
85
AppendixB
B.14 ATX Soft Power Switch (CN21)
1
Table B.14: ATX soft power switch (CN21)
Pin
1
Signal
5VSB
2
PWR-BTN
AIMB-744 User’s Manual
86
B.15 H/W Monitor Alarm (CN22)
1
Table B.15: H/W monitor alarm (CN22)
Pin
1
2
Signal
Enable OBS alarm
Disable OBS alarm
B.16 SM Bus Connector (CN29)
1
Table B.16: SM Bus Connector (CN 29)
Pin
Signal
1
2
SMB_DATA
SMB_CLK
B.17 USB/LAN ports (CN31 and CN32)
Table B.17: USB port
Pin
1
2
Signal
VCC
Data0-
Pin
3
4
Signal
Data0+
GND
87
AppendixB
Table B.18: Ethernet 10/100Base-T RJ-45 port
Pin
1
2
3
4
Signal
XMT+
XMT-
RCV+
N/C
Pin
5
6
7
8
Signal
N/C
RCV-
N/C
N/C
B.18 Line Out, Mic IN connector (CN55)
Line Out
MIC in
B.19 Audio input from CD-ROM (CD IN; CN56)
Table B.19: Audio in from CD-ROM (CD IN; CN56)
Pin
1
2
Signal
CD_L
GND
Pin
3
4
Signal
GND
CD_R
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88
B.20 Aux Line-In connector (AUX IN; CN57)
Table B.20: Aux Line-In connector (AUX IN; CN57)
Pin
1
2
Signal
AUX_L
GND
Pin
3
4
Signal
GND
AUX_R
B.21 Front Panel audio connector (FP AUDIO; CN59)
Table B.21: Front audio conn (FP AUDIO; CN59)
Pin
1
2
Signal
MIC
GND
Pin
6
7
Signal
LOUT_RR
NC
3
4
5
MIC_BIAS
VCC
LOUT_R
8
9
10
NC
LOUT_L
LOUT_LL
89
AppendixB
B.22 Case Open Connector (CN64)
Table B.22: Case Open Connector (CN64)
Pin
1
2
Signal
CASEOP
GND
B.23 8-pin Alarm Board Connector (CN62)
Table B.23: 8-pin Alarm Board Connector (CN62)
Pin
1
2
3
4
Signal
5VSB
GND
GND
-5V
Pin
5
6
7
8
Signal
VCC
VCC3
-12V
+12V
AIMB-744 User’s Manual
90
B.24 System I/O Ports
Table B.24: System I/O ports
Addr. range (Hex) Device
000-01F
020-021
022-023
040-05F
060-06F
070-07F
DMA controller
Interrupt controller 1, master
Chipset address
8254 timer
8042 (keyboard controller)
Real-time clock, non-maskable interrupt (NMI)
mask
080-09F
0A0-0BF
0C0-0DF
0F0
DMA page register
Interrupt controller 2
DMA controller
Clear math co-processor
Reset math co-processor
Math co-processor
Fixed disk
Game I/O
Parallel printer port 2 (LPT3)
On-board hardware monitor
Serial port 2
0F1
0F8-0FF
1F0-1F8
200-207
278-27F
290-297
2F8-2FF
300-31F
360-36F
378-37F
380-38F
3A0-3AF
3B0-3BF
3C0-3CF
3D0-3DF
3F0-3F7
3F8-3FF
Prototype card
Reserved
Parallel printer port 1 (LPT2)
SDLC, bisynchronous 2
Bisynchronous 1
Monochrome display and printer adapter (LPT1)
Reserved
Color/graphics monitor adapter
Diskette controller
Serial port 1
91
AppendixB
B.25 DMA Channel Assignments
Table B.25: DMA channel assignments
Channel
Function
0
1
2
3
4
5
6
7
Available
Available
Floppy disk (8-bit transfer)
Available
Cascade for DMA controller 1
Available
Available
Available
B.26 Interrupt Assignments
Table B.26: Interrupt assignments
Priority
1
2
Interrupt#
NMI
IRQ0
Interrupt source
Parity error detected
Interval timer
3
IRQ1
Keyboard
-
4
IRQ2
IRQ8
Interrupt from controller 2 (cascade)
Real-time clock
5
6
7
8
IRQ9
Cascaded to INT 0A (IRQ 2)
Available
Available
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
PS/2 mouse
9
INT from co-processor
Primary IDE Channel
Secondary IDE Channel
Serial communication port 2
Serial communication port 1
Parallel port 2
10
11
12
13
14
15
16
Diskette controller (FDC)
Parallel port 1 (print port)
AIMB-744 User’s Manual
92
B.27 1st MB Memory Map
Table B.27: 1st MB memory map
Addr. range (Hex)
E0000h - FFFFFh
Device
BIOS
CC000h - DFFFFh
Unused
C0000h - CBFFFh
A0000h - BFFFFh
00000h - 9FFFFh
VGA BIOS
Video Memory
Base memory
B.28 PCI Bus Map
Table B.28: PCI bus map (for VG, G2 version)
Function Signals: Device ID
INT# pin
INT C
INT B, C, D, A GNT 0
INT C, D, A, B GNT 1
INT D, A, B, C GNT 2
GNT
REQ
Onboard LAN2
PCI slot 1
AD21
AD31
AD30
AD29
AD28
GNT 2-1 REQ 2-1
REQ 0
REQ 1
REQ 2
PCI slot 2
PCI slot 3
PCI slot 4
INT A, B, C, D GNT 1-1 REQ 1-1
B.29 PCI-X bus map
Table B.29: PCI-X bus map
Function Signals: Device ID INT # pin
GNT
REQ
PCI-X slot1
PX-AD31 PX-INT A, B, PX-GNT A PX-REQ A
C, D
PCI-X slot2
PX-AD28 PX-INT A, B, PX-GNT D PX-REQ D
C, D
93
AppendixB
AIMB-744 User’s Manual
94
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