IBM Personal Computer PC 300PL User Manual

Technical Information Manual

PC 300PL Personal Computer Types 6584 and 6594

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Contents

Preface

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Related publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Terminology usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Chapter 1. System overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Major features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Other features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Network support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wake on LAN

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wake on Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 2. System board features

Pentium III microprocessor with MMX technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Features

L2 cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chip set control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PCI bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

IDE bus master interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

USB interface

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Low pin count bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Video subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Monitor support

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Video memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Audio subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Super input/output controller

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Diskette drive interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Serial ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Parallel port

Keyboard and mouse ports

Network connection

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Real-time clock and CMOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Flash EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Expansion adapters

Physical layout

System board, Types 6584 and 6594

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Riser card layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Recovery jumper

Cable connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Connector panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Chapter 3. Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

PC 300PL — desktop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

PC 300PL — tower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Cabling requirements for Wake on LAN adapters

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Chapter 4. Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Power input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Power output

Component outputs

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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Output protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Connector description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Chapter 5. System software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

BIOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Plug and Play . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

POST

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Configuration/Setup Utility program

Advanced Power Management (APM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Advanced Configuration and Power Interface (ACPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Flash update utility program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Diagnostic program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Chapter 6. System compatibility

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Hardware compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Hardware interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Hard disk drives and controller

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Software compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Software interrupts

Machine-sensitive programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Appendix A. Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Monitor connector

Memory connectors

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

PCI connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

ISA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

IDE connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Diskette drive connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Power supply connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Wake on LAN connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Alert on LAN connectors

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Tamper detection switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Radio frequency ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

SCSI high frequency LED connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

CD audio connector

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

USB port connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Mouse and keyboard port connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Serial port connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Parallel port connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Appendix B. System address maps

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

System memory map

Input/output address map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

DMA I/O address map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

PCI configuration space map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Appendix C. IRQ and DMA channel assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Appendix D. Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

POST error codes

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Beep codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Appendix E. Notices and trademarks

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

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References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Contents

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Figures

1. Memory configurations for 133 MHz FSB

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. Video subsystem resources

3. Supported VGA video modes

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4. Serial port assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5. Parallel port assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

6. Recovery jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

7. Power-input requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

8. Power-output (145 watts) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

9. Power output (200 watts) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

10. System board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

11. Keyboard port

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

12. PCI-bus adapters (per slot) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

. . . . . . . . . . . . . . . . . . . . . 25

13. USB port

14. Internal DASD

15. Monitor port connector pin assignments—SVGA

16. Monitor port connector pin assignments—DVI main pin field

17. Monitor port connector pin assignments—DVI MicroCross section . . . . . . . . . . . . . . . . . . 26

18. System memory connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

19. PCI connector pin assignments

20. ISA connector pin assignments

21. IDE connector pin assignments

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

22. Diskette drive connector pin assignments

23. Power supply connector pin assignments

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

24. Wake on LAN connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

25. Alert on LAN connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

26. Tamper switch pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

27. Radio frequency identification (RFID) pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . 32

28. SCSI high frequency LED connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . 33

29. CD audio connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

30. USB port connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

31. Mouse port connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

32. Keyboard port connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

33. Serial port connector pin assignments

34. Parallel port connector pin assignments

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

35. System memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

36. I/O address map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

37. DMA I/O address map

38. IRQ channel assignments

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

39. DMA channel assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

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Preface

This Technical Information Manual provides information for the IBM^PC 300^Types 6584 and 6594. It is

intended for developers who want to provide hardware and software products to operate with these IBM

computers and provides an in-depth view of how these IBM computers work. Users of this publication

should have an understanding of computer architecture and programming concepts.

Related publications

In addition to this manual, the following IBM publications provide information related to the operation of the

IBM PC 300PL Personal Computer:

Ÿ PC 300PL User Guide

This publication contains information about configuring, operating, and maintaining the PC 300PL

Personal Computer, as well as installing new options in the PC 300PL Personal Computer. Also

included are warranty information, instructions for diagnosing and solving problems, and information on

how to obtain help and service.

Ÿ Understanding Your Personal Computer

This online document includes general information about using computers and detailed information

about the features of the PC 300PL Personal Computer.

Ÿ About Your Software

This publication (provided only with computers that have IBM-preinstalled software) contains

information about the preinstalled software package.

Ÿ Hardware Maintenance Manual

This publication contains information for trained service technicians. It is available at

http://www.ibm.com/pc/us/cdt/hmm.html on the World Wide Web, and it can also be ordered from IBM.

To purchase a copy, see the "Getting Help, Service, and Information" section in PC 300PL User

Guide.

Ÿ Compatibility Report

This publication contains information about compatible hardware and software for the PC 300PL

Personal Computer. It is available at http://www.ibm.com/pc/us/cdt on the World Wide Web.

Ÿ Network Administrator's Guide

This publication contains information for network administrators who configure and service local area

networks (LANs). Look for this publication at http://www.ibm.com/pc/us/cdt on the World Wide Web.

Terminology usage

Attention: The term reserved describes certain signals, bits, and registers that should not be changed.

Use of reserved areas can cause compatibility problems, loss of data, or permanent damage to the

hardware. When the contents of a register are changed, the state of the reserved bits must be preserved.

When possible, read the register first and change only the bits that must be changed.

In this manual, some signals are represented in a small, all-capital-letter format (-ACK). A minus sign in

front of the signal indicates that the signal is active low. No sign in front of the signal indicates that the

signal is active high.

The use of the term hex indicates a hexadecimal number.

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vii

When numerical modifiers such as K, M, and G are used, they typically indicate powers of 2, not powers

of 10. For example, 1 KB equals 1024 bytes (2 ¹⁰), 1 MB equals 1048576 bytes (2 ²⁰), and 1 GB equals

1073741824 bytes (2³⁰).

When expressing storage capacity, MB equals 1000 KB (1024000). The value is determined by counting

the number of sectors and assuming that every two sectors equals 1 KB.

Note: Depending on the operating system and other system requirements, the storage capacity available

to the user might vary.

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Chapter 1. System overview

PC 300PL Types 6584 and 6594 are computer systems designed to provide state-of-the-art computing

power with room for future growth.

Major features

The major features are:

Ÿ An Intel^Pentium^III microprocessor with MMX^technology, streaming single instruction multiple

data (SIMD) extensions, and 256 KB L2 cache

Ÿ Up to 1 GB of system memory

Ÿ Integrated IDE bus master controller, Ultra DMA/66 capable

Ÿ EIDE hard disk drive

Ÿ System management

– Wake on LAN^support

– Desktop Management Interface (DMI) BIOS and DMI software

– Integrated network protocols

– Enablement for remote administration

– Wake on Ring support

Ÿ IDE CD-ROM¹drive, standard on some models

Ÿ Asset security

– Security settings provided by the Configuration/Setup Utility program

- Power-on and administrator password protection

- Startup sequence control

- Hard disk drive and diskette drive access control

- I/O port control

– Cover key lock

– U-bolt and security cabling (optional)

– Operating system security

– Diskette write-protection

– Alert on LAN^support

– Tamper-detection switch on the chassis

Ÿ Accelerated graphics port (AGP) adapter

Ÿ Integrated 16-bit stereo audio controller and built-in high-quality speaker in some models (supports

SoundBlaster, Adlib, and Microsoft^Windows^Sound System applications)

Ÿ Networking

– IBM 10/100 megabits-per-second (Mbps) PCI Ethernet adapter with Wake on LAN support in

some models

– IBM PCI token ring adapter with Wake on LAN support (optional)

Variable read rate. Actual playback speed will vary and is often less than the maximum possible.

 Copyright IBM Corp. September 1999

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Chapter 1. System overview

Ÿ Expansion

Desktop

– Four drive bays

– Four PCI expansion slots

Tower

– Six drive bays

– Six PCI expansion slots

Ÿ PCI I/O bus compatibility

Ÿ EnergyStar compliance (some models only)

Ÿ 3.5-inch, 1.44 MB diskette drive

Ÿ Input/output features

– One 25-pin, parallel port with Extended Capabilities Port (ECP)/Extended Parallel Port (EPP)

support

– Two 9-pin, universal asynchronous receiver/transmitter (UART) serial ports

– Two 4-pin, Universal Serial Bus ports

– One 6-pin, keyboard port (Windows 95 compatible)

– One 6-pin, mouse port

– One 15-pin, DDC2B-compliant monitor port on the AGP adapter

– Three 3.5-mm audio jacks (line out/headphone, line in, microphone)

Other features

The PC 300PL Personal Computer supports the following features:

Network support

PC 300PL Personal Computer computers are enabled to support management over a network. The

following is a list of supported functions:

Ÿ Selectable startup sequence

Ÿ Selectable automatic power on startup sequence

Ÿ POST/BIOS update from network

Ÿ Wake on LAN feature

Ÿ CMOS Save/Restore utility program

Ÿ CMOS setup over LAN

Ÿ Wake on Ring

Wake on LAN

The power supply of the computer supports the Wake on LAN feature. With the Wake on LAN feature,

the computer can be turned on when a specific LAN frame is passed to the computer over the LAN.

To use the Wake on LAN feature, the computer must be equipped with a network adapter that supports

Wake on LAN. Some models come with a network adapter that supports Wake on LAN. You can find the

menu for setting the Wake on LAN feature in the Configuration/Setup Utility program.

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Wake on Ring

All models can be configured to turn on the computer after a ring is detected from an external or internal

modem. The menu for setting the Wake on Ring feature is in the Configuration/Setup Utility program.

Two options control this feature:

Ÿ Serial Ring Detect: Use this option if the computer has an external modem connected to the serial

port.

Ÿ Modem Ring Detect: Use this option if the computer has an internal modem.

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Chapter 2. System board features

This section includes information about system board features. For an illustration of the system board,

see “System board, Types 6584 and 6594” on page 13.

Pentium III microprocessor with MMX technology

PC 300PL Types 6584 and 6594 come with an Intel Pentium III microprocessor. The microprocessor,

which has an attached heat sink, plugs directly into a connector on the system board.

Features

The features of this microprocessor are as follows:

Ÿ Optimization for 32-bit software

Ÿ 64-bit microprocessor data bus

Ÿ 133 MHz front side bus (FSB)

Ÿ 256 KB L2 cache integrated into the microprocessor

Ÿ 32-bit microprocessor address bus

Ÿ Math coprocessor

Ÿ MMX technology, which boosts the processing of graphic, video, and audio data

Ÿ Cache speed is half of processor core speed

– 4-way set associative

– Nonblocking

L2 cache

The Pentium III microprocessor provides 256 KB L2 cache. The L2 cache ECC function is automatically

enabled if ECC memory is installed. If non-ECC memory is installed, the L2 cache ECC is disabled. (For

information on overriding the ECC memory settings, see the chapter about the Configuration/Setup Utility

program, in PC 300PL User Guide.) More information on this microprocessor is available at

http://www.intel.com on the World Wide Web.

Chip set control

The Intel 820 chip set is the interface between the microprocessor and the following:

Ÿ Memory subsystem

Ÿ PCI bus

Ÿ IDE bus master connection

Ÿ High-performance, PCI-to-ISA bridge

Ÿ USB ports

Ÿ SMBus

Ÿ Enhanced DMA controller

Ÿ Real-time clock (RTC)

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Chapter 2. System board features

System memory

The system memory interface is controlled by the Intel 820 chip set. Rambus dynamic random access

memory (RDRAM) is standard.

The maximum amount of addressable system memory is 1 GB. For memory expansion, the system board

provides two Rambus inline memory module (RIMM) connectors. The system board also supports PC700

memory and PC800 memory RIMMs in sizes of 64 MB, 128 MB, 256 MB, and 512 MB. The amount of

memory that is preinstalled varies by model.

The following information applies to system memory:

Ÿ ECC or non-ECC RDRAM is standard.

Ÿ The maximum height of memory modules is 6.35 cm (2.5 in.).

Ÿ Each memory connector supports a maximum of 512 MB of memory, when available.

Ÿ Install only ECC RIMMS to enable ECC. If you use ECC and non-ECC memory together, all installed

memory will function as non-ECC memory.

Ÿ RIMM connectors do not support dual inline memory modules (DIMMs).

Ÿ Any connector that does not have a RIMM installed must have a continuity RIMM (C-RIMM), a module

that looks like a RIMM but has no memory on it. A continuity RIMM is used to continue the

connection on a RIMM connector that does not have memory installed in it.

Ÿ Use PC700 or PC800 RIMMs only.

Ÿ Maximum system memory can be auto-detected and auto-configured using serial presence detect and

configuration interface (BIOS specific).

The following table shows the possible configuration of RIMMs and continuity RIMMs that can be used in

the PC 300PL Personal Computer.

Figure 1. Memory configurations for 133 MHz FSB

RIMM 1

PC700

RIMM 2

PC700

Functions as

PC700

PC800

Invalid

PC700

PC800

PC700

C-RIMM

PC800

C-RIMM

No RIMM

C-RIMM

Any RIMM

No RIMM

Invalid

For information on the pin assignments for the memory-module connectors, see “Memory connectors” on

page 26.

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Chapter 2. System board features

PCI bus

The fully synchronous 33 MHz PCI bus originates in the chip set. Features of the PCI bus are:

Ÿ Integrated arbiter with multitransaction PCI arbitration acceleration hooks

Ÿ Zero-wait-state, microprocessor-to-PCI write interface for high-performance graphics

Ÿ Built-in PCI bus arbiter with support for up to five masters

Ÿ Microprocessor-to-PCI memory write posting with 5-Dword-deep buffers

Ÿ Conversion of back-to-back sequential microprocessor-to-PCI memory write to PCI burst write

Ÿ PCI-to-DRAM posting 18 Dwords

Ÿ PCI-to-DRAM up to 100+ MB/sec bandwidth

Ÿ Multitransaction timer to support multiple short PCI transactions within one PCI ARB cycle

Ÿ PCI 2.2 compliant

Ÿ Delayed transaction

Ÿ PCI parity checking and generation support

IDE bus master interface

The system board incorporates a PCI-to-IDE interface that complies with the AT Attachment Interface with

Extensions.

The bus master for the IDE interface is integrated into the I/O hub of the Intel 820 chip set. The chip set

is PCI 2.2 compliant. It connects directly to the PCI bus and is designed to allow concurrent operations on

the PCI bus and IDE bus. The chip set is capable of supporting PIO mode 0–4 devices and IDE DMA

mode 0–3 devices, ATA 66 transfers up to 66 megabytes per second (MBps).

The IDE devices receive their power through a four-position power cable containing +5, +12, and ground

voltage. When devices are added to the IDE interface, one device is designated as the master device and

another is designated as the slave or subordinate device. These designations are determined by switches

or jumpers on each device. There are two IDE ports, one designated Primary and the other Secondary,

allowing for up to four devices to be attached. The total number of physical IDE devices is determined by

the mechanical package.

For the IDE interface, no resource assignments are given in the system memory or the direct memory

access (DMA) channels. For information on the resource assignments, see “Input/output address map” on

page 36 and Figure 38 on page 40 (for IRQ assignments).

Two connectors are provided on the riser card for the IDE interface. For information on the connector pin

assignments, see “IDE connectors” on page 30.

USB interface

Universal Serial Bus (USB) technology is a standard feature of the computer. The system board provides

the USB interface with two connectors integrated into the ICH1 (I/O hub) in the chip set. A USB-enabled

device can attach to a connector, and if that device is a hub, multiple peripheral devices can attach to the

hub and be used by the system. The USB connectors use Plug and Play technology for installed devices.

The speed of the USB is up to 12 MB/sec with a maximum of 127 peripheral devices. The USB is

compliant with Universal Host Controller Interface Guide 1.0.

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Chapter 2. System board features

Features provided by USB technology include:

Ÿ Support for hot-pluggable devices

Ÿ Support for concurrent operation of multiple devices

Ÿ Suitability for different device bandwidths

Ÿ Support for up to five meters length from host to hub or from hub to hub

Ÿ Guaranteed bandwidth and low latencies appropriate for specific devices

Ÿ Wide range of packet sizes

Ÿ Limited power to hubs

For information on the connector pin assignments for the USB interface, see “USB port connectors” on

page 33.

Low pin count bus

The low pin count (LPC) bus allows a connection of the ISA and X-Bus devices such as Super I/O. The

PC 300PL Personal Computer uses the National Semiconductor PC87360 Super I/O chip. The PC87360

chip includes the following:

Ÿ Floppy disk controller

Ÿ Keyboard and mouse controller

Ÿ IEEE 1284 parallel port

Ÿ Two UART serial ports

Ÿ Wake on LAN support

Ÿ General purpose input/output (GPIO) ports

Ÿ PC98 compliance

Ÿ ACPI compliance

Diskette write protection can be enabled or disabled by a programmable setting in the LPC I/O. This

setting is accessible through the Configuration/Setup Utility program.

Video subsystem

The PC 300PL Personal Computer comes with one of the following graphics solutions:

Ÿ NumberNine S3 Savage4 Accelerated Graphics Port (AGP) 2X adapter with 8 MB 110 MHz SDRAM

and a 15-pin SVGA connector

Ÿ NumberNine S3 Savage4 Extreme AGP 4X adapter, with 16 MB 166 MHz SDRAM and a converter for

a 15-pin VGA displays

The Savage4 graphics accelerator supports the following features:

Ÿ 128-bit 2D graphics engine

Ÿ High-performance 2D/3D video accelerator

Ÿ 3D rendering

Ÿ Motion video architecture

Ÿ High-speed memory bus

Ÿ Flat panel desktop monitor support

Ÿ Full software support

Ÿ ACPI and PCI power management

Ÿ PCI 2.2 bus support, including bus mastering

Ÿ 300 MHz RAMDAC with gamma correction

Ÿ I2C serial bus and flash ROM support

Ÿ 2.5 V core with 3.3V/5V tolerant I/O

Ÿ Hardware and BIOS support for VESA timings and DDC monitor communications

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Chapter 2. System board features

The video subsystem supports all video graphics array (VGA) modes and is compliant with super video

graphics array (SVGA) modes and Video Electronics Standards Association (VESA) 1.2. Some enhanced

features include:

Ÿ Video subsystem on a chip, including 2D, 3D, and a video port

Ÿ 66 MHz AGP system bus interface with 2X or 4X mode

Ÿ Sideband signaling (some models only)

Ÿ Command list bus mastering support for fast 2D performance

Ÿ 64-bit, 125 MHz SDRAM or 166 MHz SGRAM interface

Ÿ Plug and Play support

Ÿ Advanced Power Management support

Ÿ Color space conversion

Ÿ Hardware scaling

The integrated graphics memory controller subsystem supports the VESA Display Data Channel (DDC)

standard 1.1 and uses DDC1 and DDC2B to determine optimal values during automatic monitor detection.

The video subsystem has the following resource assignments:

Figure 2. Video subsystem resources

Resource

Assignment

ROM

Hex C0000–C7FFF (32KB)

RAM

Hex A0000–BFFFF

I/O (hex)

VGA registers: Attributes 0–14, CRT controller 0–18/22/24/26, CRTC Extension 0-6, DACSTAT, FEAT, GCTL

0-8, INSTS0-1, MISC, Sequencer 0-4, DAC

IRQ

PCI interrupt 1 (automatically assigned to IRQ 0BH by POST or can be disabled in the Configuration/Setup

Utility)

None

DMA

For further information on resource assignments, see Appendix B, “System address maps” on page 36

and Appendix C, “IRQ and DMA channel assignments” on page 40.

The PC 300PL Personal Computer supports the following video subsystem modes:

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Chapter 2. System board features

Figure 3. Supported VGA video modes

Dot

clock

(MHz)

Sweep

rate

(kHz)

Mode

(hex)

Display

mode

Buffer start

(hex)

Refresh

rate (Hz)

Screen resolution

40 x 25 characters

80 x 25 characters

320 x 200 pixels

640 x 200 pixels

80 x 25 characters

320 x 200 pixels

640 x 200 pixels

640 x 350 pixels

640 x 480 pixels

320 x 200 pixels

Colors

Text

B8000

B0000

A0000

28.322

25.175

28.322

25.175

31.5

Text

B/W

Text

Graphics

Text

Mono

Graphics

Mono

256

Monitor support

The video subsystem provides a 15-pin monitor connector on the system board. For information on

connector pin assignments, see Appendix A, “Connector pin assignments” on page 25.

Video memory

The video memory interface is controlled by an integrated graphics subsystem on the AGP adapter with

up to 16 MB video RAM for 2D/3D graphics.

Audio subsystem

The PC 300PL Personal Computer comes with an integrated audio controller. These models are capable

of playing and recording sounds and support SoundBlaster, Adlib, and Microsoft Windows Sound System

applications.

The device drivers for the preinstalled audio adapter are on the hard disk. The device drivers are also

available on the Product Recovery CD or Device Driver and IBM Enhanced Diagnostics CD that comes

with the computer.

If you connect an optional device to the audio adapter, follow the instructions provided by the

manufacturer. (Note that device drivers might be required. If necessary, contact the manufacturer for

information on these device drivers.)

The following connectors are available on the integrated audio controller:

Ÿ Line/headphone out port for connecting powered speakers. To hear audio from the adapter you must

connect a set of speakers to the Line out port. These speakers must be powered with a built-in

amplifier. In general, any powered speakers designed for use with personal computers can be used

with the audio subsystem. These speakers are available with a wide range of features and power

outputs.

Ÿ Line in port for connecting musical devices, such as a portable CD player or stereo system.

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Chapter 2. System board features

Ÿ Microphone for connecting a microphone.

Super input/output controller

Control of the integrated input/output (I/O) and diskette drive controllers is provided by a single module.

This module, which supports Plug and Play, controls the following features:

Ÿ Diskette drive interface

Ÿ Serial port

Ÿ Parallel port

Ÿ Keyboard and mouse ports

Ÿ General-purpose I/O ports

Diskette drive interface

The PC 300PL Personal Computer has four drive bays for installing internal devices. The following is a

list of devices that the diskette drive subsystem supports:

Ÿ 1.44 MB, 3.5-inch diskette drive

Ÿ 1.44 MB, 3.5-inch, 3-mode drive for Japan (no BIOS support for 3-mode drive)

Ÿ 1.2 MB, 5.25-inch diskette drive

Ÿ 1 Mbps, 500-Kbps, or 250 Kbps internal tape drive

One connector is provided on the system board for diskette drive support. For information on the

connector pin assignments, see “Diskette drive connector” on page 31.

Serial ports

Two universal asynchronous receiver/transmitter (UART) serial ports are integrated into the system

board. The serial ports include 16-byte data, first-in first-out (FIFO) buffers and have programmable baud

rate generators. The serial ports are NS16450 and PC16550A compatible.

For information on the connector pin assignments, see “Serial port connector” on page 34.

Note: Current loop interface is not supported.

The following figure shows the serial port assignments in the configuration.

Figure 4. Serial port assignments

Port assignment

Serial 1

Address range (hex)

03F8–03FF

IRQ level

IRQ4

Serial 2

02F8–02FF

IRQ3

Serial 3

03E8–03FF

IRQ4

Serial 4

02E8–02FF

IRQ3

The default setting for the serial port is COM1.

Parallel port

Integrated in the system board is support for extended capabilities port (ECP), enhanced parallel port

(EPP), and standard parallel port (SPP) modes. The modes of operation are selected through the

Configuration/Setup Utility program with the default mode set to SPP. The ECP and EPP modes are

compliant with IEEE 1284.

The following figure shows the parallel port assignments used in the configuration.

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Chapter 2. System board features

Figure 5. Parallel port assignments

Port assignment

Parallel 1

Address range (hex)

03BC–03BE

IRQ level

IRQ7

Parallel 2

0378–037F

IRQ5

Parallel 3

0278–027F

IRQ5

The default setting for the parallel port is Parallel 1.

The system board has one connector for the parallel port. For information on the connector pin

assignments, see “Parallel port connector” on page 34.

Keyboard and mouse ports

The keyboard and mouse subsystem is controlled by a general purpose 8-bit microcontroller; it is

compatible with 8042AH. The controller consists of 256 bytes of data memory and 2 KB of read-only

memory (ROM).

The controller has two logical devices: one controls the keyboard and the other controls the mouse. The

keyboard has two fixed I/O addresses and a fixed IRQ line and can operate without the mouse. The

mouse cannot operate without the keyboard because, although it has a fixed IRQ line, the mouse relies on

the addresses of the keyboard for operation. For the keyboard and mouse interfaces, no resource

assignments are given in the system memory addresses or DMA channels. For information on the

resource assignments, see “Input/output address map” on page 36 and Figure 38 on page 40 (for IRQ

assignments).

The system board has one connector for the keyboard port and one connector for the mouse port. For

information on the connector pin assignments, see “Mouse and keyboard port connectors” on page 33.

Network connection

Some PC 300PL Personal Computer models are equipped with an Ethernet adapter and some are

equipped with a token ring adapter that supports the Wake on LAN feature.

Features of the Ethernet adapter are:

Ÿ Operates in shared 10BASE-T or 100BASE-TX environment

Ÿ Transmits and receives data at 10 Mbps or 100 Mbps

Ÿ Has a RJ-45 connector for LAN attachment

Ÿ Operates in symmetrical multiprocessing (SMP) environments

Ÿ Supports Wake on LAN

Ÿ Supports Alert on LAN

Ÿ Supports Remote Program Load (RPL) and Dynamic Host Configuration Protocol (DHCP)

Features of the token-ring adapter are:

Ÿ Transmits and receives data at 4 Mbps or 16 Mbps

Ÿ Has a RJ-45 and D-shell connectors for LAN attachment

Ÿ Supports Wake on LAN

Ÿ Supports Alert on LAN

Ÿ Supports Remote Program Load (RPL) and Dynamic Host Configuration Protocol (DHCP)

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Chapter 2. System board features

Real-time clock and CMOS

The real-time clock is a low-power clock that provides a time-of-day clock and a calendar. The clock

settings are maintained by an external battery source of 3 V dc.

The system uses 242 bytes of complementary metal-oxide semiconductor (CMOS) memory to store data.

The CMOS memory is erased if the jumper on the system board is moved.

To locate the battery, see “System board, Types 6584 and 6594” on page 13.

Flash EEPROM

The system board uses 4 Megabits (Mb) of flash electrically erasable, programmable, read-only memory

(EEPROM) to store the basic input/output system (BIOS), video BIOS, IBM logo, Configuration/Setup

Utility, and Plug and Play data.

If necessary, the EEPROM can be easily updated using a stand-alone utility program that is available on a

3.5-inch diskette.

Expansion adapters

Each PCI-expansion connector is a 32-bit slot. PCI-expansion connectors support the 32-bit 5 V dc,

local-bus signalling environment that is defined in PCI Local Bus Specification 2.1.

The PC 300PL Personal Computer has four PCI slots to support the addition of adapters. For information

on installing adapters, see PC 300PL User Guide.

For information on the connector pin assignments, see “PCI connectors” on page 27.

Physical layout

The system board might look slightly different from the one shown.

Note: A diagram of the system board, including switch and jumper settings, is attached to the underside

of the computer cover.

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Chapter 2. System board features

System board, Types 6584 and 6594

.1/Microprocessor

.2/RIMM connector 1

.3/RIMM connector 2

.4/AGP slot

.5/Recovery jumper

.6/Battery

Riser card layouts

The PC 300PL Personal Computer uses a riser card for expansion. The riser card contains expansion

slots that connect the adapters to the peripheral component interconnect (PCI) and industry standard

architecture (ISA) buses and connectors for the integrated drive electronics (IDE) drives and diskette

drives. The following illustrations show the expansion slots on the riser card. The PCI slots are on the

front of the riser card, and the power and IDE drive connectors are on the back of the riser card.

PC 300PL — desktop model

Some desktop models have a riser card with four PCI connector slots. The following illustration shows the

location of the slots on the PCI riser card.

.1/SCSI LED connector

.2/Wake on LAN connector

.3/Power connector (back)

.4/Primary IDE connector (back)

.5/Secondary IDE connector (back)

.6/Diskette drive connector

.7/Fan connector

.8/Tamper detector connector

.9/Speaker connector

.1ð/RFID connector

.11/Power LEDs

.12/Alert on LAN connector

.13/212-pin connector

.14/CD audio connector

.15/PCI slot 1

.16/PCI slot 2

.17/PCI slot 3

.18/PCI slot 4

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Chapter 2. System board features

Some desktop models have a riser card with two PCI slots, one ISA slot, and one shared PCI/ISA slot.

The following illustration shows the location of the slot on the PCI/ISA riser card.

.1/PCI slot 3

.2/PCI slot 2

.3/Alert on LAN connector

.4/SCSI LED connector

.5/Wake on LAN connector

.6/FDD connector

.7/Fan connector

.8/Tamper detector connector

.9/Speaker connector

.1ð/RFID connector

.11/Power LEDs

.12/ISA slot

.13/ISA slot

.14/System board connector

.15/PCI slot 1

.16/CD audio connector

PC 300PL — tower model

The following illustration shows the riser card on the tower model.

.1/PCI slots 1-5, lowest to highest

.2/Diskette drive connector

.3/Hard disk fan 1 connector

.4/Hard disk fan 2 connector

.5/Front fan connector

.6/Wake on LAN connector

.7/RFID connector

.8/Speaker connector

.9/Tamper detector connector

.1ð/SCSI LED connector

.11/IDE secondary connector

.12/IDE primary connector

.13/Power connector

.14/Alert on LAN connector

.15/212-pin system board connector

.16/CD audio connector

Recovery jumper

The recovery jumper on the system board is used for custom configurations. For the location of the

recovery jumper, see the “System board, Types 6584 and 6594” on page 13.

Figure 6. Recovery jumper

Pins

Description

1 and 2

2 and 3

Normal (factory default)

Clear CMOS/password, boot block recovery

Cable connectors

Connections for attaching devices are provided on the back of the computer. The connectors are:

Ÿ USB (2)

Ÿ Mouse

Ÿ Keyboard

Ÿ Serial (2)

Ÿ Parallel

Ÿ Monitor (SVGA or DVI)

Ÿ Audio connectors for line in, line/headphone out, and microphone

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Chapter 2. System board features

Connector panel

Each connector for a features that is integrated into the system board can be identified by an icon directly

below the connector. A connectors provided by an adapter might not have an identifying icon.

For pin-out details on connectors, see Appendix A, “Connector pin assignments” on page 25.

The following illustration shows the connector panel for the tower model:

.1/USB connector 2

.2/Serial connector 2

.3/Mouse connector

.4/SVGA monitor connector

.5/DVI monitor connector

.6/Keyboard connector

.7/Serial connector 1

.8/USB connector 1

.9/Parallel connector

.1ð/Microphone connector

.11/Line in connector

.12/Line/headphone out connector

The following illustration shows the connector panel for the desktop model:

.1/USB connector 2

.2/Serial connector 2

.3/SVGA monitor connector

.4/DVI monitor connector

.5/Mouse connector

.6/Keyboard connector

.7/Serial connector 1

.8/USB connector 1

.9/Parallel connector

.1ð/Microphone connector

.11/Line in connector

.12/Line/headphone out connector

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Chapter 3. Physical specifications

This section lists the physical specifications for the PC 300PL Types 6584 and 6594. The PC 300PL

Personal Computer desktop model has four expansion slots and four drive bays. The PC 300PL Personal

Computer tower model has six expansion slots and six drive bays.

Note: This computer is classified as a Class B digital device. However, this computer includes a built-in

network interface controller (NIC) and is considered a Class A digital device when the NIC is in

use. The Class A digital device rating and compliance notice are primarily because the inclusion

of certain Class A options or Class A NIC cables changes the overall rating of the computer to

Class A.

PC 300PL — desktop

Dimensions

Heat output

Ÿ Height: 134 mm (5.3 in.)

Ÿ Width: 447 mm (17.6 in.)

Ÿ Depth: 450 mm (17.7 in.)

Ÿ Approximate heat output in British thermal units (Btu) per

hour:

– Minimum configuration: 245 Btu/hr (70 watts)

– Maximum configuration: 700 Btu/hr (204 watts)

Weight

Airflow

Ÿ Minimum configuration as shipped: 10.0 kg (22 lb)

Ÿ Maximum configuration: 11.4 kg (25 lb)

Ÿ Approximately 0.56 cubic meter per minute (20 cubic feet

per minute) maximum

Environment

Acoustical noise-emission values

Ÿ Air temperature:

– System on: 10° to 35°C (50° to 95°F)

– System off: 10° to 43°C (50° to 110°F)

– Maximum altitude: 2134 m (7000 ft)

Ÿ Average sound-pressure levels:

– At operator position:

- Idle: 37 dBA

- Operating: 43 dBA

– At bystander position–1 meter (3.3 ft):

- Idle: 32 dBA

Note: The maximum altitude, 2133.6 m (7000 ft.), is

the maximum altitude at which the specified air

temperatures apply. At higher altitudes, the

maximum air temperatures are lower than those

specified.

- Operating: 36 dBA

Ÿ Declared (upper limit) sound-power levels:

– Idle: 4.7 bels

Ÿ Humidity:

– Operating: 5.1 bels

– System on: 8% to 80%

– System off: 8% to 80%

Note: These levels were measured in controlled acoustical

environments according to procedures specified by the

American National Standards Institute (ANSI) S12.10 and

ISO 7779 and are reported in accordance with ISO 9296.

Actual sound-pressure levels in a given location might

exceed the average values stated because of room

reflections and other nearby noise sources. The declared

sound-power levels indicate an upper limit, below which a

large number of computers will operate.

Electrical input

Ÿ Input voltage:

– Low range:

- Minimum: 90 V ac

- Maximum: 137 V ac

- Input frequency range: 57–63 Hz

- Voltage switch setting: 115 V ac

– High range:

- Minimum: 180 V ac

- Maximum: 265 V ac

- Input frequency range: 47–53 Hz

- Voltage switch setting: 230 V ac

– Input kilovolt-amperes (kVA) (approximate):

- Minimum configuration as shipped: 0.08 kVA

- Maximum configuration: 0.28 kVA

Note: Power consumption and heat output vary depending

on the number and type of optional features installed

and the power management optional features in use.

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Chapter 3. Physical specifications

PC 300PL — tower

Dimensions

Heat output

Ÿ Height: 492 mm (19.4 in.)

Ÿ Width: 200 mm (7.9 in.)

Ÿ Depth: 445 mm (17.5 in.)

Ÿ Approximate heat output in British thermal units (Btu) per

hour:

– Minimum configuration: 245 Btu/hr (70 watts)

– Maximum configuration: 969 Btu/hr (285 watts)

Weight

Airflow

Ÿ Minimum configuration as shipped: 15 kg (33 lb)

Ÿ Maximum configuration: 17.3 kg (38 lb)

Ÿ Approximately 0.85 cubic meter per minute (30 cubic feet

per minute) maximum

Environment

Acoustical noise-emission values

Ÿ Air temperature:

– System on: 10° to 35°C (50° to 95°F)

– System off: 10° to 43°C (50° to 110°F)

– Maximum altitude: 2134 m (7000 ft)

Ÿ Average sound-pressure levels:

– At operator position:

- Idle: 36 dBA

- Operating: 39 dBA

– At bystander position–1 meter (3.3 ft):

- Idle: 33 dBA

- Operating: 36 dBA

– Declared (upper limit) sound-power levels:

- Idle: 4.7 bels

Note: The maximum altitude, 2133.6 m (7000 ft.), is

the maximum altitude at which the specified air

temperatures apply. At higher altitudes, the

maximum air temperatures are lower than those

specified.

Ÿ Humidity:

- Operating: 5.0 bels

– System on: 8% to 80%

– System off: 8% to 80%

Note: These levels were measured in controlled acoustical

environments according to procedures specified by the

American National Standards Institute (ANSI) S12.10 and

ISO 7779 and are reported in accordance with ISO 9296.

Actual sound-pressure levels in a given location might

exceed the average values stated because of room

reflections and other nearby noise sources. The declared

sound-power levels indicate an upper limit, below which a

large number of computers will operate.

Electrical input

Ÿ Input voltage:

– Low range:

- Minimum: 90 V ac

- Maximum: 137 V ac

- Input frequency range: 57–63 Hz

- Voltage switch setting: 115 V

– High range:

- Minimum: 180 V ac

- Maximum: 265 V ac

- Input frequency range: 47–53 Hz

- Voltage switch setting: 230 V

– Input kilovolt-amperes (kVA) (approximate):

- Minimum configuration as shipped: 0.08 kVA

- Maximum configuration: 0.38 kVA

Note: Power consumption and heat output vary depending

on the number and type of optional features installed

and the power management optional features in use.

Cabling requirements for Wake on LAN adapters

The PC 300PL Personal Computer has a 3-pin header on the system board that provides the Auxiliary 5

volts (AUX5) and wake-up signal connections. Newer Wake on LAN adapters have a single 3-pin header

that connects to the 3-pin header on the riser card. Some Wake on LAN adapters have two headers: a

3-pin, right-angle header for AUX5, and a 2-pin straight header for the wake-up signal. These Wake on

LAN adapter options include a Y-cable that has a 3-pin system board connector on one end and splits into

the 3-pin and 2-pin connectors that connect to the adapter.

Chapter 3. Physical specifications 17

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Chapter 4. Power supply

The power-supply requirements are supplied by 145-watt PC 300PL Personal Computer power supply.

The power supply provides 3.3-volt power for the Pentium microprocessor and core chip set and 5-volt

power for PCI adapters. Also included is an auxiliary 5-volt (AUX 5) supply to provide power to

power-management circuitry and a Wake on LAN adapter. The power supply converts the ac input

voltage into four dc output voltages and provides power for the following:

Ÿ System board

Ÿ Adapters

Ÿ Internal drives

Ÿ Keyboard and auxiliary devices

Ÿ USB devices

A logic signal on the power connector controls the power supply; the front panel switch is not directly

connected to the power supply.

The power supply connects to the system board with a 2 x 10 connector.

Power input

The following figure shows the power-input specifications. The power supply has a manual switch to

select the correct input voltage.

Figure 7. Power-input requirements

Specification

Measurements

Input voltage, low range

Input voltage, high range

Input frequency

100 (min) to 127 (max) V AC

200 (min) to 240 (max) V AC

50 Hz 3 Hz or 60 Hz 3 Hz

Power output

The power supply outputs shown in the following figures include the current-supply capability of all the

connectors, including system board, DASD, PCI, and auxiliary outputs.

Figure 8. Power-output (145 watts)

Output voltage

+5 volts

Regulation

+5% to −4%

+5% to −5%

+10% to −9%

Minimum current

1.5 A

Maximum current

18.0 A

+12 volts

0.2 A

4.2 A

−12 volts

0.0 A

0.4 A

+3.3 volts

0.0 A

10.0 A

−5 volts

10%

0.0 A

0.3 A

+5 volt (auxiliary)

+5% to −5%

0.0 A

0.02 A

Note: The total combined 3.3 V and 5 V power must not exceed 100 watts.

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Chapter 4. Power supply

Figure 9. Power output (200 watts)

Output voltage

+5 volts

Regulation

Minimum current

1.5 A

Maximum current

20.0 A

+5% to -4%

+12 volts

0.2 A

8.0 A

−12 volts

+10% to -9%

0.0 A

0.4 A

−5 volts

10%

0.0 A

0.3 A

+ 3.3 volts

+5 volts (auxiliary)

0.0 A

20.0 A

0.005 A

0.72 A

Component outputs

The power supply provides separate voltage sources for the system board and internal storage devices.

The following figures show the approximate power that is provided for specific system components. Many

components draw less current than the maximum shown.

Figure 10. System board

Supply voltage

+3.3 V dc

Maximum current

3000 mA

Regulation limits

+5.0% to −5.0%

+5.0% to −4.0%

+5.0% to −5.0%

+10.0% to −9.0%

+5.0 V dc

4000 mA

+12.0 V dc

−12.0 V dc

25.0 mA

Figure 11. Keyboard port

Supply voltage

Maximum current

Regulation limits

+5.0 V dc

275 mA

+5.0% to −4.0%

Figure 12. PCI-bus adapters (per slot)

Supply voltage

+5.0 V dc

Maximum current

2000 mA

Regulation limits

+5.0% to −4.0%

+3.3 V dc

3030 mA

Note: For each PCI connector, the maximum power consumption is rated at 10 watts for +5 V dc and

+3.3 V dc combined. Typical power budget assumptions use 7.5 watts per adapter. If maximum

power is used, then the overall system configuration will be limited in performance.

Figure 13. USB port

Supply voltage

Maximum current

Regulation limits

+5.0 V dc

500 mA

+5.0% to −4.0%

Figure 14. Internal DASD

Supply voltage

+5.0 V dc

Maximum current

Regulation limits

+5.0% to −5.0%

1400 mA

+12.0 V dc

1500 mA at startup, 400 mA when

active

Chapter 4. Power supply 19

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Chapter 4. Power supply

Note: Some adapters and hard disk drives draw more current than the recommended limits. These

adapters and drives can be installed in the system; however, the power supply will shut down if the

total power used exceeds the maximum power that is available.

Output protection

The power supply protects against output overcurrent, overvoltage, and short circuits. See the power

supply specifications on the previous pages for details.

A short circuit that is placed on any dc output (between outputs or between an output and dc return)

latches all dc outputs into a shutdown state, with no damage to the power supply. If this shutdown state

occurs, the power supply returns to normal operation only after the fault has been removed and the power

switch has been turned off for at least one second.

If an overvoltage fault occurs (in the power supply), the power supply latches all dc outputs into a

shutdown state before any output exceeds 130% of the nominal value of the power supply.

Connector description

The power supply for the PC 300PL Personal Computer has four 4-pin connectors for internal devices.

The total power used by the connectors must not exceed the amount shown in “Component outputs” on

page 19. For connector pin assignments, see Appendix A, “Connector pin assignments” on page 25.

20 Technical Information Manual

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Chapter 5. System software

This section briefly describes some of the system software included with the computer.

BIOS

The computer uses the IBM basic input/output system (BIOS), which is stored in flash electrically erasable

programmable read-only memory (EEPROM). Some features of the BIOS are:

Ÿ PCI support in accordance with PCI BIOS Specification 2.2

Ÿ Microsoft PCI IRQ Routing Table

Ÿ Plug and Play support in accordance with Plug and Play BIOS Specification 1.1a

Ÿ Advanced Power Management (APM) support according to APM BIOS Interface Specification 1.2

Ÿ Wake on LAN support

Ÿ Wake on Ring support

Ÿ Alert on LAN support

Ÿ Remote program load (RPL) and Dynamic Host Configuration Protocol (DHCP)

Ÿ Startable CD-ROM support

Ÿ Flash-over-LAN support

Ÿ Alternate startup sequence

Ÿ IBM look and feel, such as screen arrangements

Ÿ ACPI (Advanced Configuration and Power Interfaces) 1.0b

Ÿ IDE logical block addressing (LBA) support

Ÿ LSA 2.0 support

Ÿ LS120 support

Ÿ DM BIOS 2.1 (DMI 2.0 compliant)

Ÿ PC99 compliance

Plug and Play

Support for Plug and Play conforms to the following:

Ÿ Plug and Play BIOS Specification 1.1a and 1.0

Ÿ Plug and Play BIOS Extension Design Guide 1.0

Ÿ Plug and Play BIOS Specification, Errata, and Clarifications 1.0

Ÿ Guide to Integrating the Plug and Play BIOS Extensions with system BIOS 1.2

Ÿ Plug and Play Kit for DOS and Windows

POST

IBM power-on self-test (POST) code is used. Also, initialization code is included for the on-board system

devices and controllers.

POST error codes include text messages for determining the cause of an error. For more information, see

Appendix D, “Error codes” on page 41.

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Chapter 5. System software

Configuration/Setup Utility program

The Configuration/Setup Utility program provides menus for selecting options for devices, I/O ports, date

and time, system security, start options, advanced setup, and power management.

More information on using the Configuration/Setup Utility program is provided in PC 300PL User Guide.

Advanced Power Management (APM)

The PC 300PL Personal Computer computers come with built-in energy-saving capabilities. Advanced

Power Management (APM) is a feature that reduces the power consumption of systems when they are not

being used. When enabled, APM initiates reduced-power modes for the monitor, microprocessor, and

hard disk drive after a specified period of inactivity.

The BIOS supports APM 1.2. This enables the system to enter a power-managed state, which reduces

the power drawn from the ac electrical outlet. Advanced Power Management is enabled through the

Configuration/Setup Utility program and is controlled by the individual operating system.

For more information on APM, see PC 300PL User Guide and Understanding Your Personal Computer.

Advanced Configuration and Power Interface (ACPI)

Automatic Configuration and Power Interface (ACPI) BIOS mode enables the operating system to control

the power management features of the computer. Not all operating systems support ACPI BIOS mode.

See the operating system documentation to determine if ACPI is supported.

Flash update utility program

The flash update utility program is a stand-alone program to support flash updates. This utility program

updates the BIOS code and can change the machine readable information (MRI) to different languages.

The flash update utility program is available on a 3.5-inch diskette.

Diagnostic program

The diagnostic program that comes with the PC 300PL Personal Computer computer is provided on the

Product Recovery CD and Device Driver and IBM Enhanced Diagnostics CD. It runs independently of the

operating system. You can use IBM Enhanced Diagnostics to diagnose and repair problems with the

computer. You can download the latest version from

http://www.ibm.com/pc/support/desktop/desktop_support.html on the World Wide Web. For more

information on this diagnostic program, see PC 300PL User Guide.

22 Technical Information Manual

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Chapter 6. System compatibility

This chapter discusses some of the hardware, software, and BIOS compatibility issues for the computer.

See the Compatibility Report for a list of compatible hardware and software options.

Hardware compatibility

This section discusses hardware, software, and BIOS compatibility issues that must be considered when

designing application programs.

Many of the interfaces are the same as those used by the IBM Personal Computer AT. In most cases,

the command and status organization of these interfaces is maintained.

The functional interfaces are compatible with the following interfaces:

Ÿ Intel 8259 interrupt controllers (edge-triggered mode)

Ÿ National Semiconductor NS16450 and NS16550A serial communication controllers

Ÿ Motorola MC146818 Time of Day Clock command and status (CMOS reorganized)

Ÿ Intel 8254 timer, driven from a 1.193 MHz clock (channels 0, 1, and 2)

Ÿ Intel 8237 DMA controller, except for the Command and Request registers and the Rotate and Mask

functions; the Mode register is partially supported

Ÿ Intel 8272 or 82077 diskette drive controllers

Ÿ Intel 8042 keyboard controller at addresses hex 0060 and hex 0064

Ÿ All video standards using VGA, EGA, CGA, MDA, and Hercules modes

Ÿ Parallel printer ports (Parallel 1, Parallel 2, and Parallel 3) in compatibility mode

Use this information to develop application programs. Whenever possible, use the BIOS as an interface to

hardware to provide maximum compatibility and portability of applications among systems.

Hardware interrupts

Hardware interrupts are level-sensitive for PCI interrupts. The interrupt controller clears its in-service

command is sent regardless of whether the incoming interrupt request to the controller is active or

inactive.

The interrupt-in-progress latch is readable at an I/O-address bit position. This latch is read during the

interrupt service routine and might be reset by the read operation or it might require an explicit reset.

Note: For performance and latency considerations, designers might want to limit the number of devices

sharing an interrupt level.

With level-sensitive interrupts, the interrupt controller requires that the interrupt request be inactive at the

time the EOI command is sent; otherwise, a new interrupt request will be detected. To avoid this, a

level-sensitive interrupt handler must clear the interrupt condition (usually by a read or write operation to

an I/O port on the device causing the interrupt). After processing the interrupt, the interrupt handler:

1. Clears the interrupt

2. Waits one I/O delay

3. Sends the EOI

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Chapter 6. System compatibility

4. Waits one I/O delay

5. Enables the interrupt through the Set Interrupt Enable Flag command

Hardware interrupt IRQ9 is defined as the replacement interrupt level for the cascade level IRQ2.

Program interrupt sharing is implemented on IRQ2, interrupt hex 0A. The following processing occurs to

maintain compatibility with the IRQ2 used by IBM Personal Computer products:

1. A device drives the interrupt request active on IRQ2 of the channel.

2. This interrupt request is mapped in hardware to IRQ9 input on the second interrupt controller.

3. When the interrupt occurs, the system microprocessor passes control to the IRQ9 (interrupt hex 71)

interrupt handler.

4. This interrupt handler performs an EOI command to the second interrupt controller and passes control

to the IRQ2 (interrupt hex 0A) interrupt handler.

5. This IRQ2 interrupt handler, when handling the interrupt, causes the device to reset the interrupt

request before performing an EOI command to the master interrupt controller that finishes servicing

the IRQ2 request.

Hard disk drives and controller

Reading from and writing to the hard disk is initiated in the same way as in IBM Personal Computer

products; however, new functions are supported.

Software compatibility

To maintain software compatibility, the interrupt polling mechanism that is used by IBM Personal Computer

products is retained. Software that interfaces with the reset port for the IBM Personal Computer

positive-edge interrupt sharing (hex address 02Fx or 06Fx, where x is the interrupt level) does not create

interference.

Software interrupts

With the advent of software interrupt sharing, software interrupt routines must daisy chain interrupts. Each

routine must check the function value, and if it is not in the range of function calls for that routine, it must

transfer control to the next routine in the chain. Because software interrupts are initially pointed to

address 0:0 before daisy chaining, check for this case. If the next routine is pointed to address 0:0 and

the function call is out of range, the appropriate action is to set the carry flag and do a RET 2 to indicate

an error condition.

Machine-sensitive programs

Programs can select machine-specific features, but they must first identify the machine and model type.

IBM has defined methods for uniquely determining the specific machine type. The machine model byte

can be found through Interrupt 15H, Return System Configuration Parameters function (AH)=C0H).

24 Technical Information Manual

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Appendix A. Connector pin assignments

The following figures show the pin assignments for various system board connectors.

Monitor connector

Figure 15. Monitor port connector pin assignments—SVGA

Signal

Red

I/O

Signal

I/O

Green

Blue

Monitor ID 2 - Not

used

Ground

Red ground

Blue ground

Ground

Green ground

+5 V, used by DDC2B

Monitor ID 0 - Not

used

DDC2B serial data

Vertical sync

I/O

Horizontal sync

DDC2B clock

I/O

Figure 16. Monitor port connector pin assignments—DVI main pin field

Signal

I/O

Signal

I/O

TMDS data 2+

TMDS data 2/4 return

TMDS data 4+*

DDC data

TMDS data 2-

TMDS data 4-*

DDC clock

N/A

I/O

Analog vertical sync

TMDS data 1+

TMDS data 3+*

+5V power

TMDS data 1-

TMDS data 1/3 shield

TMDS data 3+*

Ground

N/A

Hot plug detect

TMDS data 0+

TMDS D5*

TMDS data 0-

Return

N/A

TMDS data 5+*

TMDS clock+

TMDS clock shield

TMDS clock-

N/A

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Appendix A. Connector pin assignments

Figure 17. Monitor port connector pin assignments—DVI MicroCross section

Signal

I/O

Signal

I/O

Red video out

Analog blue

Green video out

Analog horizontal sync

Video/pixel clock return

N/A

*These are not used on the NumberNine S3 Savage4 AGP card.

Memory connectors

184

Figure 18 (Page 1 of 2). System memory connector pin assignments

Signal

Gnd

Signal

Gnd

Signal

A47

A48

A49

A50

A51

A52

A53

A54

A55

A56

A57

A58

A59

A60

A61

A62

A63

A64

A65

A66

A67

A68

A69

A70

A71

A72

A73

A74

B47

B48

B49

B50

B51

B52

B53

B54

B55

B56

B57

B58

B59

B60

B61

B62

B63

B64

B65

B66

B67

B68

B69

B70

B71

B72

B73

B74

LDQA8

Gnd

LDQA7

Gnd

LDQA6

Gnd

LDQA5

Gnd

Vref

LDQA4

Gnd

LDQA3

Gnd

SCL

SA0

LDQA2

Gnd

LDQA1

Gnd

Vdd

SDA

SA1

A10

A11

A12

A13

A14

A15

A16

A17

A18

A19

A20

A21

A22

A23

A24

A25

A26

A27

A28

LDQA0

Gnd

B10

B11

B12

B13

B14

B15

B16

B17

B18

B19

B20

B21

B22

B23

B24

B25

B26

B27

B28

LCFM

Gnd

SVdd

SWP

Vdd

SVdd

SA2

LCTMN

Gnd

LCFMN

Gnd

Vdd

RSCK

Gnd

RCMD

Gnd

LCTM

Gnd

RDQB7

Gnd

RDQB8

Gnd

LROW2

Gnd

RDQB5

Gnd

RDQB6

Gnd

LROW1

Gnd

LROW0

Gnd

RDQB3

Gnd

RDQB4

Gnd

LCOL4

Gnd

LCOL3

Gnd

RDQB1

Gnd

RDQB2

Gnd

LCOL2

Gnd

LCOL1

Gnd

RCOL0

Gnd

RDQB0

Gnd

LCOL0

Gnd

LDQB0

Gnd

RCOL2

Gnd

RCOL1

Gnd

LDQB1

Gnd

LDQB2

Gnd

RCOL4

Gnd

RCOL3

Gnd

LDQB3

LDQB4

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Appendix A. Connector pin assignments

Figure 18 (Page 2 of 2). System memory connector pin assignments

Signal

Gnd

Signal

Gnd

Signal

RROW1

Gnd

Signal

RROW0

Gnd

A29

A30

A31

A32

A33

A34

B29

B30

B31

B32

B33

B34

B35

B36

B37

B38

B39

B40

B41

B42

B43

B44

B45

B46

A75

A76

A77

A78

A79

A80

A81

A82

A83

A84

A85

A86

A87

A88

A89

A90

A91

A92

B75

B76

B77

B78

B79

B80

B81

B82

B83

B84

B85

B86

B87

B88

B89

B90

B91

B92

LDQB5

Gnd

LDQB6

Gnd

RROW2

Gnd

LDQB7

Gnd

LDQB8

Gnd

RCTM

Gnd

LSCK

Vcmos

SOUT

Vcmos

LCMD

Vcmos

SIN

Gnd

RCTMN

Gnd

RCFMN

Gnd

A36

A37

A38

A39

A40

A41

A42

A43

A44

A45

A46

Vcmos

RDQA0

Gnd

RCFM

Gnd

RDQA2

Gnd

RDQA1

Gnd

Vdd

RDQA4

Gnd

RDQA3

Gnd

Vdd

RDQA6

Gnd

RDQA5

Gnd

RDQA8

Gnd

RDQA7

Gnd

PCI connectors

A62

B62

Figure 19 (Page 1 of 3). PCI connector pin assignments

Signal

I/O

Signal

I/O

TRST#

+12 V dc

TMS

−12 V dc

TCK

Ground

TDO

TDI

+5 V dc

INTA#

+5 V dc

INTB#

INTC#

+5 V dc

Reserved

+5 V dc

Reserved

Ground

3.3 V AUX

INTD#

PRSNT1#

Reserved

PRSNT2#

Ground

3.3 V AUX

A10

A11

A12

A13

A14

B10

B11

B12

B13

B14

Appendix A. Connector pin assignments 27

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Appendix A. Connector pin assignments

Figure 19 (Page 2 of 3). PCI connector pin assignments

Signal

I/O

Signal

I/O

A15

A16

A17

A18

A19

A20

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

A51

A52

A53

A54

A55

A56

A57

RST#

B15

B16

B17

B18

B19

B20

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

B51

B52

B53

B54

B55

B56

B57

Ground

+5 V dc (I/O)

GNT#

CLK

Ground

I/O

REQ#

PCI

+5 V dc

I/O

Address/data 30

+3.3 V dc

Address/data 28

Address/data 26

Ground

Address/data 31

Address/data 29

Ground

Address/data 27

Address/data 25

+3.3 V dc

C/BE 3#

Address/data 24

IDSEL

+3.3 V dc

Address/data 22

Address/data 20

Ground

I/O

Address/data 23

Ground

Address/data 21

Address/data 19

+3.3 V dc

Address/data 17

C/BE 2#

Address/data 18

Address/data 16

+3.3 V dc

FRAME#

Ground

IRDY#

TRDY#

+3.3 V dc

DEVSEL#

Ground

STOP#

+3.3 V dc

SMBCLK*

SMBDATA*

Ground

LOCK#

PERR#

+3.3 V dc

SERR#

PAR

+3.3 V dc

C/BE 1#

Address/data 15

3.3 V dc

Address/data 14

Ground

Address/data 13

Address/data 11

Ground

Address/data 12

Address/data 10

Ground

Address/data 9

Key

C/BE(0)#

Address/data 8

Address/data 7

+3.3 V dc

Address/data 5

Address/data 3

Ground

3.3 V dc

Address/data 6

Address/data 4

Ground

Address/data 2

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Appendix A. Connector pin assignments

Figure 19 (Page 3 of 3). PCI connector pin assignments

Signal

I/O

Signal

I/O

A58

A59

A60

A61

A62

Address/data 0

+5 V dc

B58

B59

B60

B61

B62

Address/data 1

+5 V dc

ACK64#

+5 V dc

ACK64#

+5 V dc

*These assignments are for PCI connector slot one only; for all other slots, the signal for pin A40 is

SDONE and for pin A41 is SBO#.

ISA connectors

A31 C1

B31 D1

C18

D18

Note: The ISA connectors are on the riser card.

Figure 20 (Page 1 of 2). ISA connector pin assignments

Signal

Ground

RESET DRV

+5 V dc

IRQ2

I/O

Signal

IOCHCK#

SD7

I/O

SD6

SD5

-5 V dc

DRQ2

SD4

SD3

-12 V dc

OWS#

SD2

SD1

+12 V dc

Ground

SMEMW#

SMEMR#

IOW#

I/O

SD0

B10

B11

B12

B13

B14

B15

B16

B17

B18

B19

B20

B21

B22

B23

B24

A10

A11

A12

A13

A14

A15

A16

A17

A18

A19

A20

A21

A22

A23

A24

IOCHRDY

AEN

SA19

SA18

SA17

SA16

SA15

SA14

SA13

SA12

SA11

SA10

SA9

I/O

IOR#

DACK3#

DRQ3

DACK1#

DRQ1

REFRESH#

CLK

I/O

IRQ7

IRQ6

IRQ5

SA8

IRQ4

SA7

Appendix A. Connector pin assignments 29

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Appendix A. Connector pin assignments

Figure 20 (Page 2 of 2). ISA connector pin assignments

B25

B26

B27

B28

B29

B30

B31

Signal

IRQ3

I/O

A25

A26

A27

A28

A29

A30

A31

Signal

SA6

I/O

DACK2#

SA5

SA4

BALE

SA3

+5 V dc

OSC

SA2

SA1

Ground

MEMCS16#

IOCS16#

IRQ10

SA0

SBHE#

LA23

LA22

LA21

LA20

LA19

LA18

LA17

MEMR#

MEMW#

SD8

IRQ11

IRQ12

IRQ15

IRQ14

DACK0#

DRQ0

D10

D11

D12

D13

D14

D15

D16

D17

D18

DACK5#

DRQ5

C10

C11

C12

C13

C14

C15

C16

C17

C18

DACK6#

DRQ6

SD9

SD10

SD11

SD12

SD13

SD14

SD15

DACK7#

DRQ7

+5 V DC

MASTER#

Ground

IDE connectors

Figure 21 (Page 1 of 2). IDE connector pin assignments

Signal

I/O

Signal

I/O

RESET

Ground

I/O

Ground

I/O write

Data bus bit 7

Data bus bit 8

Data bus bit 6

Data bus bit 9

Data bus bit 5

Data bus bit 10

I/O read

Ground

I/O channel ready

ALE

30 Technical Information Manual

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Appendix A. Connector pin assignments

Figure 21 (Page 2 of 2). IDE connector pin assignments

Signal

I/O

Signal

I/O

Data bus bit 4

Data bus bit 11

Data bus bit 3

Data bus bit 12

Data bus bit 2

Data bus bit 13

Data bus bit 1

Data bus bit 14

Data bus bit 0

Data bus bit 15

Ground

IRQ

CS16#

SA1

PDIAG#

SA0

SA2

CS0#

CS1

Active#

Ground

Key (Reserved)

Diskette drive connector

Figure 22. Diskette drive connector pin assignments

Signal

I/O

Signal

I/O

Drive 2 installed #

Not connected

Ground

High density select

Not connected

Data rate 0

Ground

Index#

Reserved

Ground

Motor enable 0#

Drive select 1#

Drive select 0#

Motor enable 1#

Direction in#

Step#

Ground

MSEN1

Ground

Write data#

Ground

Write enable#

Track0#

Ground

MSEN0

Write protect#

Read data#

Ground

Head 1 select#

Diskette change#

Data rate 1

Power supply connector

Figure 23 (Page 1 of 2). Power supply connector pin assignments

Signal name

+3.3 V

Signal name

+3.3 V

−12 V

Appendix A. Connector pin assignments 31

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Appendix A. Connector pin assignments

Figure 23 (Page 2 of 2). Power supply connector pin assignments

Signal name

Ground

Signal name

Ground

ON/OFF

Ground

−5 V

+5 V

Ground

+5 V

Ground

PWR GOOD

+5 V standby

+12 V

+5 V

Wake on LAN connectors

Figure 24. Wake on LAN connector pin assignments

Description

+5 V standby

Ground

Wake on LAN

Alert on LAN connectors

Figure 25. Alert on LAN connector pin assignments

Description

SMB Data

SMB Clock

Intrusion

Tamper detection switch

Figure 26. Tamper switch pin assignments

Description

Ground

Tamper switch

Radio frequency ID

Figure 27. Radio frequency identification (RFID) pin assignments

Description

RFID Ant 1

Key

Ground

RFID Ant 2

32 Technical Information Manual

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Appendix A. Connector pin assignments

SCSI high frequency LED connectors

Figure 28. SCSI high frequency LED connector pin assignments

Description

Not connected

to LED

Not connected

CD audio connector

Figure 29. CD audio connector pin assignments

Description

CD in left

CD in Ground

CD in Right

USB port connectors

Figure 30. USB port connector pin assignments

Signal

VCC

-Data

+Data

Ground

Mouse and keyboard port connectors

Figure 31 (Page 1 of 2). Mouse port connector pin assignments

Signal

Data

I/O

Signal

I/O

Reserved

+5 V dc

Ground

Appendix A. Connector pin assignments 33

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Appendix A. Connector pin assignments

Figure 31 (Page 2 of 2). Mouse port connector pin assignments

Signal

I/O

Signal

I/O

Clock

I/O

Reserved

Figure 32. Keyboard port connector pin assignments

Signal

I/O

Signal

I/O

Keyboard data

Ground

Mouse data

+5 V dc

Keyboard clock

Mouse clock

Serial port connector

Figure 33. Serial port connector pin assignments

Signal

I/O

Signal

I/O

Data carrier detect

Transmit data#

Ground

Receive data#

Data terminal read

Data set ready

Clear to send

Request to send

Ring indicator

Parallel port connector

Figure 34 (Page 1 of 2). Parallel port connector pin assignments

Signal

I/O

Signal

I/O

STROBE#

Data bit 1

Data bit 3

Data bit 5

Data bit 7

BUSY

Data bit 0

Data bit 2

Data bit 4

Data bit 6

ACK#

SLCT

AUTO FD XT#

INIT#

ERROR#

SLCT IN#

Ground

34 Technical Information Manual

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Appendix A. Connector pin assignments

Figure 34 (Page 2 of 2). Parallel port connector pin assignments

Signal

I/O

Signal

I/O

Ground

Appendix A. Connector pin assignments 35

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Appendix B. System address maps

System memory map

The first 640 KB of system board RAM is mapped starting at address hex 0000000. A 256 byte area and

a 1 KB area of this RAM are reserved for BIOS data areas. Memory can be mapped differently if POST

detects an error.

Figure 35. System memory map

Address range (decimal)

0 K – 512 K

Address range (hex)

00000–7FFFF

Size

Description

512 KB

127 KB

1 KB

Conventional

512 K – 639 K

80000–9FBFF

Extended conventional

Extended BIOS data

639 K – 640 K

9FC00–9FFFF

A0000–BFFFF

640 K – 767 K

128 KB

Dynamic video memory

display cache

768 K – 800 K

800 K – 896 K

896 K – 1 MB

C0000 to C7FFF

C8000–DFFFF

E0000–FFFFF

32 KB

96 KB

128 KB

Video ROM BIOS

(shadowed)

PCI space, available to

adapter ROMs

System ROM BIOS (main

memory shadowed)

1 MB – 16 MB

100000–FFFFFF

15 MB

PCI space

16 MB – 4095.872 MB

1000000–FFDFFFF

FFFE0000 – FFFFFFFF

4079.8 MB

128 KB

PCI space (positive decode)

System ROM BIOS

Input/output address map

The following figure lists resource assignments for the I/O address map. Any addresses that are not

shown are reserved.

Figure 36 (Page 1 of 3). I/O address map

Address (Hex)

0000–000F

0010–001F

0020–0021

0022–003F

0040–0043

0044–00FF

0060

Size

Description

16 bytes

2 bytes

30 bytes

4 bytes

28 bytes

1 byte

1 bit

DMA 1

General I/O locations — available to PCI bus

Interrupt controller 1

General I/0 locations — available to PCI bus

Counter/timer 1

General I/0 locations — available to PCI bus

Keyboard controller byte - reset IRQ

PIIX4, system port B

0061

0064

Keyboard controller, CMD/STAT byte

Enable NMI

0070, bit 7

0070, bits 6:0

0071

1 bit

Real-time clock, address

1 byte

14 bytes

1 byte

Real-time clock, data

0072–007F

0080

General I/O locations — available to PCI bus

POST checkpoint register during POST only

Refresh page register

008F

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Appendix B. System address maps

Figure 36 (Page 2 of 3). I/O address map

Address (Hex)

0080–008F

0090–0091

0092

Size

Description

16 bytes

15 bytes

1 byte

ICH1, DMA page registers

General I/O locations — available to PCI bus

PS/2 keyboard controller registers

0093–009F

00A0–00A1

00A2–00BF

00C0–00DF

00E0–00EF

00F0

15 bytes

2 bytes

30 bytes

31 bytes

16 bytes

1 byte

General I/O locations

Interrupt controller 2

APM control

DMA 2

General I/O locations — available to PCI bus

BX, Coprocessor Error register

00F1–016F

0170–0177

01F0–01F7

0200–0207

0220–0227

0228–0277

0278–027F

0280–02E7

02E8–02EF

02F8–02FF

0338–033F

0340–036F

0370–0371.

0372–0375

0376–0377

0378–037F

0380–03B3

03B4–03B7

03BA

127 bytes

8 bytes

80 bytes

8 bytes

102 bytes

8 bytes

48 bytes

2 bytes

4 bytes

2 bytes

8 bytes

52 bytes

4 bytes

1 byte

General I/O locations — available to PCI bus

Secondary IDE channel

Primary IDE channel

Available

SMC 37C673, Serial port 3 or 4

General I/O locations — available to PCI bus

SMC 27C673, LPT3

Available

SMC PC37C673, Serial port 3 or 4

COM2

SMC PC37C673, serial port 3 or 4

Available

SMC SIO system board Plug and Play index/data registers

Available

IDE channel 1 command

LPT2

Available

Video

03BC–03BE

03C0–03CF

03D4–03D7

03DA

16 bytes

4 bytes

1 byte

LPT1

Video

03D0–03DF

03E0–03E7

03E8–03EF

03F0–03F5

03F6

11 bytes

8 bytes

6 bytes

1 byte

Available

COM3 or COM4

Diskette channel 1

Primary IDE channel command port

Diskette channel 1 command

Diskette disk change channel

Primary IDE channel status port

COM1

03F7 (Write)

03F7, bit 7

03F7, bits 6:0

03F8–03FF

0400–047F

0480–048F

1 byte

1 bit

7 bits

8 bytes

128 bytes

16 bytes

Available

DMA channel high page registers

Appendix B. System address maps 37

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Appendix B. System address maps

Figure 36 (Page 3 of 3). I/O address map

Address (Hex)

0490–0CF7

0CF8–0CFB

0CFC–0CFF

LPTn + 400h

0CF9

Size

Description

1912 bytes

4 bytes

8 bytes

1 byte

Available

PCI Configuration address register

PCI Configuration data register

ECP port, LPTn base address + hex 400

Turbo and reset control register

Available

0D00–FFFF

62207 bytes

DMA I/O address map

The following figure lists resource assignments for the DMA address map. Any addresses that are not

shown are reserved.

Figure 37 (Page 1 of 2). DMA I/O address map

Address (hex)

0000

0001

0002

0003

0004

0005

0006

0007

0008

0009

000A

000B

000C

000D

000E

000F

0081

0082

0083

0087

0089

008A

008B

008F

00C0

00C2

00C4

00C6

00C8

Description

Bits

Byte pointer

Yes

Channel 0, Memory Address register

Channel 0, Transfer Count register

Channel 1, Memory Address register

Channel 1, Transfer Count register

Channel 2, Memory Address register

Channel 2, Transfer Count register

Channel 3, Memory Address register

Channel 3, Transfer Count register

Channels 0–3, Read Status/Write Command register

Channels 0–3, Write Request register

Channels 0–3, Write Single Mask register bits

Channels 0–3, Mode register (write)

Channels 0–3, Clear byte pointer (write)

Channels 0–3, Master clear (write)/temp (read)

Channels 0–3, Clear Mask register (write)

Channels 0–3, Write All Mask register bits

00–15

00–07

00–02

00–07

N/A

Yes

00–07

00–03

00–07

00–15

Channel 2, Page Table Address register

Channel 3, Page Table Address register

Channel 1, Page Table Address register

Channel 0, Page Table Address register

Channel 6, Page Table Address register

Channel 7, Page Table Address register

Channel 5, Page Table Address register

Channel 4, Page Table Address/Refresh register

Channel 4, Memory Address register

Channel 4, Transfer Count register

Channel 5, Memory Address register

Channel 5, Transfer Count register

Channel 6, Memory Address register

Yes

38 Technical Information Manual

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Appendix B. System address maps

Figure 37 (Page 2 of 2). DMA I/O address map

Address (hex)

00CA

Description

Bits

Byte pointer

Channel 6, Transfer Count register

00–15

00–07

00–02

00–07

N/A

Yes

00CC

00CE

Channel 7, Memory Address register

Channel 7, Transfer Count register

00D0

Channels 4–7, Read Status/Write Command register

Channels 4–7, Write Request register

Channels 4–7, Write Single Mask register bit

Channels 4–7, Mode register (write)

Channels 4–7, Clear byte pointer (write)

Channels 4–7, Master clear (write)/temp (read)

Channels 4–7, Clear Mask register (write)

Channels 4–7, Write All Mask register bits

Channels 5–7, 8- or 16-bit mode select

00D2

00D4

00D6

00D8

00DA

00–07

00–03

00–07

00DC

00DE

00DF

PCI configuration space map

Bus number (hex)

Device number

(hex)

Function number

(hex)

Description

Intel 84440BX (host bridge)

Intel 84440BX (PCI/AGP)

Intel 82371AB Hub interface to PCI bridge

registers

Intel 82371AB IDE bus master

Intel 82371AB USB

Intel 82371AB Interface bridge registers

AC '97 audio controller

PCI connectors

Upper byte of memory address register.

Appendix B. System address maps 39

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Appendix C. IRQ and DMA channel assignments

The following figures list the interrupt request (IRQ) and direct memory access (DMA) channel

assignments.

Figure 38. IRQ channel assignments

IRQ

NMI

SMI

System resource

Critical system error

System management interrupt — power management

Reserved (interval timer)

Reserved (keyboard)

Reserved, cascade interrupt from slave PIC

COM2 ³

COM1 ³

LPT2/audio (if present)

Diskette controller

LPT1 ³

Real-time clock

Video

Available to user

Mouse port

Reserved (math coprocessor)

Primary IDE (if present)

Secondary IDE (if present)

Figure 39. DMA channel assignments

DMA channel

Data width

8 bits

System resource

Open

8 bits

Open

8 bits

Diskette drive

8 bits

Parallel port (for ECP or EPP)

–

Reserved (cascade channel)

16 bits

Open

Default, can be changed to another IRQ.

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Appendix D. Error Codes

Appendix D. Error codes

A complete list of POST error codes is provided in the PC 300PL User Guide and in the Hardware

Maintenance Manual.

POST error codes

POST error messages appear when POST finds problems with the hardware during power-on or when a

change in the hardware configuration is found. POST error messages are 3-, 4-, 5-, 8-, or 12-character

alphanumeric messages.

Beep codes

A complete list of beep codes is provided in the Hardware Maintenance Manual.

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Appendix E. Notices and trademarks

References in this publication to IBM products, programs, or services do not imply that IBM intends to

make these available in all countries in which IBM operates. Any reference to an IBM product, program,

or service is not intended to state or imply that only that IBM product, program, or service may be used.

Subject to IBM’s valid intellectual property or other legally protectable rights, any functionally equivalent

product, program, or service may be used instead of the IBM product, program, or service. The evaluation

and verification of operation in conjunction with other products, except those expressly designated by IBM,

are the responsibility of the user.

IBM may have patents or pending patent applications covering subject matter in this document. The

furnishing of this document does not give you any license to these patents. You can send license

inquiries, in writing, to:

IBM Director of Licensing

IBM Corporation

North Castle Drive

Armonk, NY 10504-1785

U.S.A.

Any references in this publication to non-IBM Web sites are provided for convenience only and do not in

any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part

of the materials for this IBM product and use of those Web sites is at your own risk.

The following terms are trademarks of the IBM Corporation in the United States or other countries or both:

Alert on LAN

IBM

PC 300

PS/2

LANClient Control Manager Wake on LAN

Intel, Pentium, and MMX are trademarks of Intel Corporation in the United States, other countries, or both.

Microsoft, Windows, and Windows NT are trademarks of Microsoft Corporation in the United States, other

countries, or both.

Other company, product, and service names may be trademarks or service marks of others.

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References

Ÿ Advanced Power Management (APM) BIOS

Interface Specification 1.2/

Ÿ PCI BIOS Specification 2.0

Source: PCI Special Interest Group

Source: Intel Corporation

Ÿ PCI Local Bus Specification 2.1

Ÿ AT Attachment Interface with Extensions

Source: American National Standard of Accredited

Standards Committee

Source: PCI Special Interest Group

Ÿ Plug and Play BIOS Specification 1.1

Source: Microsoft Corporation; available at

http://www.microsoft.com/hwdev

Ÿ Extended Capabilities Port: Specification Kit

Source: Microsoft Corporation

Ÿ Plug and Play BIOS Specification, Errata and

Clarifications 1.0

Ÿ Intel Microprocessor and Peripheral Component

Literature

Source: Microsoft Corporation

Source: Intel Corporation

Ÿ Universal Serial Bus Specifications

Source: http://www.usb.org

Ÿ Video Electronics Standards Association 1.2

Source: http://www.vesa.org

Ÿ AT24RF08A- PCID Specification

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Index

connector (continued)

lan wake-up pin assignments 32

lan wakeup 32

ACPI 22

address map

memory pin assignments 26

monitor 25

parallel port 34

parallel port pin assignments 34

PCI 27

PCI pin assignments 27

power supply 20, 31

power supply pin assignments 31

RIMM 26

serial pin assignments 34

serial ports 34

USB 33

USB port pin assignments 33

Wake on LAN 32

DMA 38

I/O 36

system memory 36

advanced configuration and power interface 22

advanced power management 22

APM (advanced power management) 22

audio

adapter

controller

device drivers

subsystem

audio connector pin assignments 33

controller

audio

beep codes 41

BIOS 21

diskette drive 10

hard disk drive 24

I/O 10

keyboard/mouse 11

parallel 10

BIOS data areas 36

bus

IDE

low pin count (LPC)

LPC

serial 10

PCI 6, 12

universal serial bus

diagnostic program 22

digital video interface (DVI) 25

diskette drive

cache, L2

controller 10

chip set 4, 10

clock, real-time 12

CMOS RAM 12

compatibility

DMA (direct memory access) channel assignments 40

hardware 23

software 24

EEPROM 12

electrically erasable, programmable, read-only memory

(EEPROM) 12

Enhanced Diagnostics 22

environment, operating 16

error codes, POST 41

Ethernet port 11

component maximum current 19

configuration/setup utility program 22

connector

Alert on LAN 32

alert on lan pin assignments 32

cable 14

connector panel 15

diskette drive 31

diskette drive pin assignments 31

IDE 30

fault, overvoltage 20

features

IDE pin assignments 30

ISA bus 29

ISA pin assignments 29

keyboard/mouse pin assignments 33

keyboard/mouse ports 33

general

microprocessor

network support

system board

video

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Index

features (continued)

memory (continued)

Wake on LAN

Wake on Ring

flash EEPROM 12

flash update 22

Rambus dynamic random access memory

(RDRAM)

Rambus inline memory module (RIMM)

connectors

RDRAM (Rambus dynamic random access

memory)

system memory map 36

video

frequency, input power 18

hard disk drive

messages, POST error 41

microprocessor

compatibility 24

controller 24

hardware compatibility 23

hardware interrupts 23

features

modes, power management 22

monitor support

monitor, DVI pin assignments 25

monitor, SVGA pin assignments 25

I/O

address map 36

controller 10

diskette drive 10

features 14

network

connection 11

support

keyboard 10, 11

mouse 10, 11

parallel port 10

parallel port assignments 10

serial port 10

noise level 16, 17

ordering publications vii

outputs, power supply 19

overvoltage fault 20

IDE interface

information, related vii

input power

frequency 18

requirements 18

voltage 18

parallel port 10

parallel port assignments 10

PCI

interrupt request assignments 40

bus

configuration space map 39

connectors 12

jumper

configuration 14

locations (system board) 12

Pentium III microprocessor with MMX technology

physical layout 12

Plug and Play 21

polling mechanism 24

port

L2 cache

ethernet 11

LED connectors 32

level-sensitive interrupts 23

load currents 19

keyboard/mouse 11

parallel 10

serial 10

POST 21, 36

POST error codes 41

power

machine-sensitive programs 24

consumption 22

description 18

for components 19

input 18

load currents 19

management modes 22

main memory

memory

configuration tables

error in 36

map, system 36

RAM 36

Index 45

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Index

power (continued)

output 18

universal serial bus (continued)

technology

output protection 20

outputs 19

protection, power supply 20

publications, related vii

video

accelerated graphics port (AGP)

adapter

features

memory

modes

monitor support

resources

subsystem

RAM (random access memory) 36

Rambus dynamic random access memory (RDRAM)

random access memory (RAM) 36

RDRAM (Rambus dynamic random access memory)

real-time clock 12

references 43

related information vii

reserved

voltage, input power 18

voltage, output power 18

areas vii

RFID 32

radio frequency identification 32

Riser card layout 13

Wake on LAN

cable requirements 17

Wake on LAN support

Wake on Ring

serial port 10

serial port assignments 10

short circuit 20

software

compatibility 24

interrupts 24

machine-sensitive programs 24

specifications 16, 17

desktop 16

mechanical 16

tower 17

system

compatibility 23

memory

memory maps 36

software 21

specifications 16

system board

features

layout 13

tamper switch 32

tamper switch assignments 32

terminology vii

token ring port 11

universal serial bus

connectors 33

port

46 Technical Information Manual

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