IBM NetVista A40 Types 6568, 6578, 6648 Technical Information Manual

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NetVista™

Technical Information Manual A20 Type 6269 A40 Types 6568, 6578, 6648 A40p Types 6569, 6579, 6649

IBM

NetVista™

Technical Information Manual A20 Type 6269 A40 Types 6568, 6578, 6648 A40p Types 6569, 6579, 6649

IBM

Note

Before using this information and the product it supports, be sure to read the information in Appendix E,

“Notices and trademarks,” on page 53.

First Edtion (June 2000)

Note to U.S. Government Users — Documentation related to restricted rights — Use, duplication or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp.

IBM

Contents

Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

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

Major features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Other features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Network support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Wake on LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Chapter 2.Sy stem board features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

System board layout for the NetVista A40 and A40p computer . . . . . . . . . . . . . . . . . 3

Riser card layout for the small form factor desktop model computer . . . . . . . . . . . . . 4

System board layout for the A20 model computer . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Microprocessor features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Pentium III microprocessor with MMX technology . . . . . . . . . . . . . . . . . . . . . . . . . 5

Celeron microprocessor with MMX technology . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Chip set control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Memory subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

PCI bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

IDE bus master interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

USB interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Super I/O controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Diskette drive interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Serial ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Parallel port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Keyboard and mouse ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Low pin-count bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Video subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Features of the Intel 815E/810E integrated graphics subsystem . . . . . . . . . . . . 10

Features of the NVidia 4x AGP adapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Monitor support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Audio subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Network connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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

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

Expansion adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Cable connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Chapter 3.Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Physical specifications — A40 and A40p small form factor desktop model . . . . . . . 17

Physical specifications — A40 and A40p desktop model. . . . . . . . . . . . . . . . . . . . . 18

Physical specifications — A20 desktop model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Chapter 4.Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Power input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Power output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Component outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Output protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Internal device connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Chapter 5.System software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

BIOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Plug and Play . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

POST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Configuration/Setup Utility program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Advanced Power Management (APM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Advanced Configuration and Power Interface (ACPI) . . . . . . . . . . . . . . . . . . . . . . . 26

Flash update utility program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Diagnostic program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Chapter 6.System compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Hardware compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Hardware interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Hard disk drives and controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Machine-sensitive programs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Appendix A. Connector-pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

External connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Monitor connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

USB port connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Keyboard and mouse connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Serial connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Parallel connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Ethernet connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

MIDI/joystick connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Internal connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Diskette drive connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

IDE connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Memory connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

32-bit PCI connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

32-bit PCI connector with integrated Ethernet extension. . . . . . . . . . . . . . . . . . . 39

Power supply connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Wake on LAN connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Tamper detection switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

RFID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

CD audio connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

SCSI LED connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Appendix B. System address maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

System memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

I/O address map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

DMA I/O address map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Appendix C. IRQ and DMA channel assignments. . . . . . . . . . . . . . . . . . . . . . . . 49

Appendix D. Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

POST error codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Beep codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Appendix E. Notices and trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

vi NetVista™ NetVista Technical Information Manual

Preface

This

Technical Information Manual

computer. The manual is intended for developers who want to provide hardware and software products to operate with this IBM computer. It provides an in-depth view of how this IBM computer works. 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 NetVista computer:

NetVista User Guide

• This publication, available on the hard disk and on the your computer came with preinstalled software, contains information about setting up your computer, configuring hardware and software, operating and maintaining your computer, and installing options. Also included are instructions for diagnosing and solving problems and information on how to obtain help and service.

Quick Reference

• This publication contains general information to help you to safely set up your computer and access important online publications.

Understanding Your Personal Computer

• This online document includes general information about using computers and information about the features of the NetVista computer. It is available at http://www.ibm.com/pc/support on the World Wide Web.

Hardware Maintenance Manual

• This publication contains information for trained service technicians. It is available at http://www.ibm.com/pc/support 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 the

provides information for the IBM® NetVista™

Software Selections CD

NetVista User Guide

Terminology usage

Attention: The term

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 an 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. 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 1 024 bytes (2 equals 1 073 741 824 bytes (2

powers of 10 are used. 1 MB equals approximately 1 000 KB (1 000 000 bytes). Note: Depending on the operating system and other system requirements, the

storage capacity available to the user might vary.

reserved

describes c ertain signals, bits, and registers that

), and 1 GB

). However, when expressing storage capacity,

viii NetVista™ Technical Information Manual

Chapter 1. System overview

NetVista computer systems provide state-of-the-art computing power with room for future growth.

Major features

The major features are:

• An Intel instruction multiple data (SIMD) extensions and 256 KB advanced transfer cache

memory or Celeron

128 KB advanced transfer cache

• Up to 512 Megabytes (MB) of system memory

• Integrated drive electronics (IDE) bus master controller, Ultra DMA-66 capable (some models Ultra DMA-100 capable)

• System management

— Wake on LAN — Desktop Management Interface (DMI) basic input/output system (BIOS) and

— Integrated network protocols — Enablement for Remote Administration

• IDE CD-ROM drive (some models)

• Asset securi ty

— Security settings provided by the Configuration/Setup Utility program

— Cover key lock (some models) — U-bolt and security cabling capable — Operating system security — Tamper-detection switch on the chassis (some models)

• Accelerated graphics port (AGP) adapter (available on some models only)

• Integrated 16-bit stereo audio controller and built-in high-quality speaker (supports SoundBlaster, Adlib, and Microsoft

applications) (some models only)

• IBM 10/100 megabits-per-second (Mbps) Ethernet subsystem with Wake on LAN support (on some models)

• Expansion

Pentium® III microprocessor with MMX™ technology, streaming single-

support

DMI software

– Power-on and administrator password protection – Startup sequence control – Hard disk drive and diskette drive access control – Input/output (I/O) port control

microprocessor with MMX technology, SIMD extensions and

Windows® Sound System

— Drive bays

– Small form factor desktop model: three drive bays – Desktop model: four drive bays

— Adapter slots

– Small form factor desktop model: two peripheral component interconnect

(PCI) expansion slots

– Desktop model: three PCI expansion slots and one AGP slot (some

models)

• PCI version 2.2 I/O bus compatibility

• 3.5-inch, 1.44 MB diskette drive

• Input/Output features — One 25-pin parallel port with Extended Capabilities Port (ECP)/Extended

Parallel Port (EPP) support

— One (A20) or two (A40) 9-pin universal asynchronous receiver/transmitter

(UART) serial ports — Two 4-pin Universal Serial Bus (USB) ports — One 6-pin keyboard port — One 6-pin mouse port — One 15-pin DD2CB-compliant monitor port — Three 3.5-mm audio jacks (line out/headphone, line-in, microphone) — One nine-pin MIDI/joystick connector (A20 models only)

Other features

The NetVista computer supports the following features.

Network support

The NetVista computer is enabled to support the addition of options to perform management over a network. The following is a list of supported functions:

Wake on LAN

The power supply of the computer supports the Wake on LAN feature. You can use the Wake on LAN feature to turn on the computer by passing a specific LAN frame to the computer over the LAN. You can find the menu for setting the Wake on LAN feature in the Configuration/Setup Utility program. For more information, see the

NetVista User Guide

• Selectable primary startup sequence

• Selectable automatic power-on startup sequence

• Selectable error startup sequence

• Power-on self-test (POST)/BIOS update from network

• Wake on LAN

• Complimentary metal oxide semiconductor (CMOS) Save/Restore utility program

• CMOS setup over LAN

• Wake on Ring (if Wake on Ring supported modem is installed)

2 NetVista™ Technical Information Manual

Chapter 2. System board features

This section includes information about system board features.

System board layout for the NetVista A40 and A40p computer

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 computer cover.

Þ1Ý Fan connector 2 Þ13Ý Fan connector 1 Þ2Ý Microprocessor Þ14Ý Battery Þ3Ý DIMM 1 Þ15Ý SCSI adapter LED connector Þ4Ý DIMM 2 Þ16Ý Alert on LAN connector Þ5Ý Power LED connector Þ17Ý Wake on LAN connector Þ6Ý RFID connector Þ18Ý PCI slot 3 Þ7Ý Front USB connector Þ19Ý PCI slot 2 Þ8Ý Secondary IDE connector Þ20Ý PCI slot 1 Þ9Ý Diskette drive connector Þ21Ý AGP slot Þ10Ý Primary IDE connector Þ22Ý CD-ROM audio connector Þ11Ý Power supply connector Þ23Ý Speaker connector Þ12Ý Clear CMOS/recovery jumper

Riser card layout for the small form factor desktop model computer

The riser card might look slightly different from the one shown. Note: A diagram of the system board, including switch and jumper settings, is

attached to the computer cover.

Þ1Ý PCI connector 1 Þ2Ý Ethernet disable jumper Þ3Ý PCI connector 2

System board layout for the A20 model computer

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 computer cover.

4 NetVista™ Technical Information Manual

Þ1Ý CPU fan connector Þ9Ý Battery Þ2Ý Microprocessor Þ10Ý Clear CMOS/recovery jumper Þ3Ý Power connector Þ11Ý Front fan connector Þ4Ý DIMM 1 Þ12Ý Wake on LAN connector Þ5Ý DIMM 2 Þ13Ý PCI slot 3 Þ6Ý Diskette drive connector Þ14Ý PCI slot 2 Þ7Ý Secondary IDE connector Þ15Ý PCI slot 1 Þ8Ý Primary IDE connector Þ16Ý CD-ROM audio connector

Microprocessor features

The NetVista computer comes with an Intel Pentium III or Celeron microprocessor. The microprocessor, which has an attached heat sink, plugs directly into a connector on the system board.

Pentium III microprocessor with MMX technology

The features of the microprocessor are as follows:

• Optimization for 32-bit software

• 64-bit microprocessor data bus

• 100 MHz or 133 MHz front-side bus (FSB)

• 256 KB full-speed advanced transfer cache memory integrated into the microprocessor

— 4-way set associative — Nonblocking

• 36-bit microprocessor address bus

• Math coprocessor

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

Celeron microprocessor with MMX technology

The features of the microprocessor are as follows:

• Optimization for 32-bit software

• 64-bit microprocessor data bus

•66 MHz FSB

• 128 KB full-speed advanced transfer cache memory integrated into the microprocessor

— 4-way set associative — Nonblocking

• 36-bit microprocessor address bus

• Math coprocessor

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

Chapter 2. System board features 5

Chip set control

A40 and A40p models use the Intel 815E chip set. The Intel 815E chip set is the interface between the microprocessor and the following:

• Memory subsystem

•PCI buses

• IDE bus master connection

• USB ports

• System Management Bus (SMBus)

• Enhanced DMA controller

• Real-time clock (RTC)

• Ethernet

• Audio

A20 models use the Intel 810E chip set. The Intel 810E chip set is the interface between the microprocessor and the following:

• Memory subsystem

•PCI buses

• IDE bus master connection

• USB ports

• SMBus

• Enhanced DMA controller

• Real-time clock (RTC)

• Audio

• MIDI/joystick port

• Video

Memory subsystem

The system memory interface is controlled by the Intel 815E chip set (A20 by the 810E chip set). System memory is synchronous dynamic random access memory (SDRAM).

The maximum amount of system memory is 512 MB. For memory expansion, the system board provides dual inline memory module (DIMM) connectors.

The system board supports PC100 and PC133 memory DIMMs (A20 supports PC133 only) in sizes of 64 MB, 128 MB, and 256 MB. The amount of preinstalled memory varies by model.

The following information applies to system memory:

• Non-error checking and correction (non-ECC) SDRAM is supported.

• The maximum height of memory modules is 3.465 cm (1.375 in.).

• Use PC100 or PC133 DIMMs only.

• System memory is auto-detected and auto-configured using serial presence detect.

For information on the pin assignments for the memory module connectors, see “Memory connectors” on page 34.

6 NetVista™ Technical Information Manual

PCI bus

The fully synchronous 32-bit 33 MHz PCI bus originates in the chip set. Features of these PCI buses are:

• Integrated arbiter with multitransaction, PCI-arbitration, acceleration hooks

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

• Built-in PCI bus arbiter with support for all PCI devices and connectors

• Microprocessor-to-PCI memory write posting

• Conversion of back-to-back, sequential, microprocessor-to-PCI memory write to PCI burst write

• PCI-to-DRAM memory up to 528 megabytes per second (MBps) speed

• PCI 2.2 compliant

• Delayed transaction

• PCI parity checking and generation support

IDE bus master interface

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

Attachment Interface with Extensions

The bus master for the IDE interface is integrated into the Intel 815E or 810E chip set, depending on the model. The chip set connects directly to the PCI bus and is designed to allow concurrent operations on the PCI bus and the IDE bus. The 815E chip set is capable of supporting PIO mode 0-4 devices and IDE DMA mode 0-5 devices, and ATA 100 transfers of up to 100 Megabytes per second. The 810E chip set is capable of supporting PIO mode 0-4 devices and IDE DMA mode 0-4 devices, and ATA 66 transfers of up to 66 Megabytes per second.

standard.

USB interface

The IDE devices receive their power through a four-position power cable containing +5 v dc, +12 v dc, and ground voltage. When devices are added to the IDE interface, one device is designated as the master (primary) device and another is designated as the slave (secondary) device. These designations are determined by jumpers on each device. Two connectors are provided on the system board for the IDE interface. One connector is designa ted Pr im ar y, and the other connector is designated Secondary. Each connector allows two devices to be attached, allowing up to four devices to be attached to the IDE interface. For information on the connector pin assignments, see “IDE connectors” on page 33.

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 Table 36 on page 49.

USB technology is a standard feature of the computer. The A40 and A40p system boards provide the USB interface with two dual channels integrated into the chip set. The A20 system board provides the USB interface with one dual channel integrated into 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 MBps with a maximum of 127 peripheral devices. The USB is compliant with

Universal Host Controller Interface Guide 1.0

Chapter 2. System board features 7

Features provided by USB technology include:

• Support for hot-pluggable devices

• Support for concurrent operation of multiple devices

• Suitability for different device speeds

• Support for cable length of up to five meters (16 ft. 5 in) from host to hub or from hub to hub

• Wide range of packet sizes

• Limited power to hubs

For information on the connector pin assignments for the USB interface, see “USB port connectors” on page 29.

Super I/O controller

Control of the integrated I/O and diskette drive controllers is provided by a single module. This module, which supports Plug and Play, controls the following features:

• Diskette drive interface

• Serial port

• Parallel port

• Keyboard and mouse ports

• MIDI/joystick port (A20 models only)

Diskette drive interface

The NetVista computer diskette drive subsystem supports the following devices:

• 1.44 MB, 3.5-inch diskette drive

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

• 1.2 MB, 5.25-inch diskette drive

• 1 Mbps, 500 Kbps, or 250 Kbps internal tape drive

Note: A 2.88 MB 3.5-inch diskette drive is not supported. One 34-pin connector is provided on the system board for diskette drive support. For

information about the connector pin assignments, see “Diskette drive connector” on page 32.

A setting in the Configuration/Setup Utility program enables or disables diskette write protection.

Serial ports

Two UART serial ports are integrated into the system board of A40 and A40p models. A20 models come with one serial port. The serial ports include 16-byte, first-in first-out (FIFO) buffers and have programmable baud rate generators. The serial ports are NS16450 and PC16550A compa tibl e.

For information on the connector pin assignments, see “Serial connector” on page 30. Note: The current loop interface is not supported.

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

8 NetVista™ Technical Information Manual

Parallel port

Table 1. Default serial port assignments

Port assignment Address range (hex) IRQ level

Serial 1 03F8–03FF IRQ 4 Serial 2 (A40 and A40p models only) 02F8–02FF IRQ 3

Integrated into the system board is support for ECP, 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 table shows the possible parallel port assignments used in the configuration.

Table 2. Parallel port assignments

Port assignment Address range (hex) IRQ level DMA

Parallel 1 03BC–03BE IRQ 7 3 Parallel 2 0378–037F IRQ 7 3 Parallel 3 0278–027F IRQ 7 3

The default setting for the parallel port is Parallel 2 ECP mode. The system board has one connector for the parallel port. For information about the

connector pin assignments, see “Parallel connector” on page 31.

Keyboard and mouse ports

The keyboard and mouse subsystem is controlled by a general purpose 8-bit microcontroller that is compatible with 8042AH and PC87911. 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 interrupt request (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 assignments given in the system memory addresses or DMA channels. For information on the resource assignments, see Table 35 on page 49 and Table 36 on page 49.

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 Table 36 on page

49.

Low pin-count bus

The low-pin-count (LPC) bus enables device connections to the Super I/O without industry standard architecture (ISA) or X-Bus. The NetVista A40 and A40p computer uses the LPC47M133 Super I/O chip. The NetVista A20 computer uses the Windbond 83627HF Super I/O chip. The chip includes the following:

• Diskette drive controller

• Keyboard and mouse controller

• IEEE 1284 parallel port

Chapter 2. System board features 9

• Two UART serial ports

• Fan tacit monitoring

• MIDI/joystick port (A20 models only)

• PC99 compliance

• Advanced configuration and power interface (ACPI) compliance

Video subsystem

The NetVista computer comes with one of the following graphics adapters:

• Intel 815E/810E integrated graphics subsystem with 3D capability

• NVidia 4x AGP adapter with 16 MB synchronous dynamic random access memory (SDRAM)

Features of the Intel 815E/810E integrated graphics subsystem

The Intel 815E/810E integrated graphics subsystem is a 2D/3D video subsystem that includes a random access memory and digital-to-analog converter (RAMDAC), video POST and BIOS code and a DDC2B monitor connector.

The Intel 815E/810E GMCH graphics subsystem is compatible with video graphics adapter (VGA) function, supports all VGA video modes, and contains the following advanced features:

• Integrated video subsystem on the chip includes 2D and 3D graphics engines

• Integrated hardware motions compensation engine

• Intel dynamic video memory (DVM) technology

• Direct3D optimized 3D engine

• 230 MHz, internal RAMDAC that supports up to 85 Hz refresh rate at 1280 x 1024 resolution

• Full MPEG-2 motion compensation for software assisted DVD video playback

• Multiple monitor support

• Compliance with the following standards:

— VESA VBE V2.0 — DDC2B

• Advanced power-management (APM) support

• Complete Plug and Play suppo rt

10 NetVista™ Technical Information Manual

Features of the NVidia 4x AGP adapter

The NVidia 4x AGP adapter is a 2D/3D video adapter with 16 MB SDRAM that includes:

• AGP 4x interface

• 128-bit TwiN-Texel archit ecture (TNT2 M64)

• 16 MB SDRAM frame buffer with 64-bit interface

• 64 MB frame buffer supporting SuperScene, full-scene, multi sampled antialiasing

• 250 MHz, internal RAMDAC that supports up to 85 Hz refresh rate at 1280 x 1024 resolution

• High-resolution support up to 1600 x 1200

• High-performance 128-bit 2D/graphical user interface (GUI)/DirectDraw acceleration

• Fast 32-bit VGA/Super VGA (SVGA) support

• High performance implementation of Direct 3D and OpenGL standards

• Video acceleration for DirectShow, MPEG-1, MPEG-2, and Indeo

• Multiple monitor support

• Advanced power-management support

• Complete Plug and Play suppo rt

• Compliance with the following standards:

—AGP 2.0 — VESA VBE V2.0/3.0 — DDC2B

Monitor support

The video subsystem provides a 15-pin analog monitor connector for the integrated video subsystem on the system board in addition to a 15-pin analog connector on a graphics adapter (if present). When an AGP graphics adapter is installed in the computer, the 15-pin monitor connector for the integrated video subsystem will go unused. For multiple monitor support, either the integrated video subsystem or AGP adapter must be used in conjunction with a PCI graphics adapter. For information on connector pin assignments, see “Monitor connector” on page 29.

Audio subsystem

The NetVista 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 are on the hard disk and are also available on the Product Recovery Program on the hidden partition of the hard drive if the computer comes with preinstalled software.

If you connect an optional device to the audio connectors, 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.)

Chapter 2. System board features 11

The following connectors are available on the integrated audio controller:

Line/headphone out

• To hear audio from the adapter you must connect headphones or a set of speakers to the Line out port. These speakers must be powered with a built-in amplifier. In general, powered speakers are available with a wide range of features and power outputs.

Line in

• stereo system.

Microphone

•

Network connection

Some models of the NetVista computer have an integrated Ethernet controller. Features of the Ethernet controller are:

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

• Transmits and receives data at 10 Mbps or 100 Mbps

• Has a RJ-45 Ethernet connector for LAN attachment

• Supports Wake on LAN

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

connector for connecting headphones or powered speakers.

connector for connecting musical devices, such as a portable CD player or

connector for attaching a microphone.

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 the battery when the power cord is removed.

The system uses 242 bytes of CMOS memory to store data. The CMOS memory is erased if the CMOS clear/recovery jumper is moved.

To locate the battery, see “System board layout for the NetVista A40 and A40p computer” on page 3 or “System board layout for the A20 model computer” on page 4.

Flash EEPROM

The system board uses 4 Mb of flash electrically erasable, programmable, read-only memory (EEPROM) to store the BIOS, IBM logo, Configuration/Setup Utility, and Plug and Play data.

If necessary, the EEPROM can be easily updated using a stand-alone program that is available on a 3.5-inch diskette. For information to obtain the latest version of the Flash Update Utility program, see the

Expansion adapters

NetVista User Guide

The NetVista small form factor desktop model computer has two 32-bit, 33 MHz PCI slots. The NetVista desktop model computer has three 32-bit 33 MHz PCI slots. These connectors support the 5 V signaling environment that is defined in

Bus Specification 2.2

. Some models also have a preinstalled AGP adapter.

PCI Local

12 NetVista™ Technical Information Manual

The NetVista computer has a 3-pin connector on the system board that provides the auxiliary 5 volts (AUX5) and wake-up signal connections. Some Wake on LAN adapters have two connectors: a 3-pin, right-angle header for AUX5, and a 2-pin straight connector for the wake-up signal. These Wake on LAN connector 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.

For information on installing adapters, see the For information on the connector pin assignments, see “32-bit PCI connectors” on

page 37.

Cable connectors

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

For pin assignment details on connectors, see Appendix A, “Connector-pin assignments,” on page 29.

Connectors for features integrated into the system board can be identified by an icon directly below each connector. A connector located on an adapter might not have an identifying icon.

NetVista User Guide

• Monitor (SVGA)

• Keyboard

• Mouse

• Serial (2) (A20 models — 1)

• Parallel

•USB (2)

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

• MIDI/joystick (A20 models only)

• Ethernet (some models)

Chapter 2. System board features 13

The following illustration shows the connector panel for the NetVista small form factor desktop model computer.

Þ1Ý Mouse connector Þ2Ý USB connector 2 Þ3Ý Parallel connector Þ4Ý Serial connector Þ5Ý Power connector Þ6Ý Ethernet connector Þ7Ý Audio line out connector Þ8Ý Audio line in connector Þ9Ý Microphone connector Þ10Ý Monitor connector Þ11Ý Serial connector 1 Þ12Ý USB co nnec to r 1 Þ13Ý Keyboard connector

14 NetVista™ Technical Information Manual

The following illustration shows the connector panel for the NetVista desktop model computer.

Þ1Ý Power connector Þ2Ý Mouse connector Þ3Ý USB connector 2 Þ4Ý Parallel connector Þ5Ý Serial connector 2 (MIDI/joystick connector for some models) Þ6Ý Audio line/headphone out Þ7Ý Audio line in Þ8Ý Microphone Þ9Ý Monitor connector Þ10Ý Serial connector 1 Þ11Ý USB co nnec to r 1 Þ12Ý Keyboard connector

Note: On A20 models, the audio line out and microphone connector are reversed in

position on the back of the computer, and a joystick/MIDI connector in the place of serial connector 2.

Chapter 2. System board features 15

16 NetVista™ Technical Information Manual

Chapter 3. Physical specifications

This section lists the physical specifications for the NetVista computer. The NetVista small form factor desktop model has two 32-bit PCI expansion slots and three drive bays. The NetVista desktop model computer has three 32-bit PCI expansion slots, one AGP slot (some models only), and four drive bays.

Note: The computer is classified as a Class A or Class B digital device. See the

NetVista User Guide

Physical specifications — A40 and A40p small form factor desktop model

for further information about this classification.

Dimensions

Height: 87 mm (3.43 in.) Width: 345 mm (13.6 in.) Depth: 360 mm (14.2 in.)

Weight

Minimum configuration as shipped: 8.2 kg (18 lb) Maximum configuration: 8.6 kg (19 lb)

Environment

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)

Note: The maximum altitude, 2134 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.

Humidity:

System on: 8% to 80% System off: 8% to 80%

Electrical input

Input voltage:

Minimum: 90 V ac Maximum: 265 V ac

Input frequency range: 47–63 Hz

Input kilovolt-amperes (kVA) (approximate):

Minimum configuration as shipped: 0.08 kVA Maximum configuration: 0.16 kVA

Note: Power consumption and heat output vary

depending on the nu mber a nd typ e of opt ional features installed and the power-manage ment optional f eatures in use.

Heat output (approximate) in British thermal units (Btu) per hour:

Minimum configuration: 205 Btu/hr (60 watts) Maximum configuration: 375 Btu/hr (110 watts)

Airflow

Approximately 0.25 cubic meters per minute (9 cubic feet per minut e) maximum

Acoustical noise-emission values

Average sound-pressure levels:

At operator position:

Idle: 38 dBA Operating: 43 dBA

At bystander position - 1 meter (3.3 ft):

Idle: 33 dBA Operating: 37 dBA

Declared (upper limit) sound-power levels:

Idle: 4.8 bels Operating: 5.1 bels

Note: These levels were measured in controlled

acoustical environments according to the procedures specified by the American National Standards Institute (ANSI) S12.10 and ISO 7779 and are reported in ac corda nce with ISO 9296. Actual sound-pressure levels in a given location might exceed the average values stated be caus e of ro om ref lectio ns an d other nearby noise sources. The declared sound-power levels indicate an upper limit, below which a large number of computers will operate.

Physical specifications — A40 and A40p desktop model

Dimensions

Height: 140 mm (5.5 in.) Width: 425 mm (16.7 in.) Depth: 425 mm (16.7 in.)

Weight

Minimum configuration as shipped: 9.4 kg (20 lb) Maximum configuration: 11.3 kg (25.0 lb)

Environment

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)

Note: The maximum altitude, 2134 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.

Humidity:

System on: 8% to 80% System off: 8% to 80%

Electrical input

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: 0.30 kVA

Note: Power consumption and heat output vary

depending on the nu mber a nd typ e of opt ional features installed and the power-manage ment optional f eatures in use.

Heat output (approximate) in British thermal units (Btu) per hour:

Minimum configuration: 240 Btu/hr (75 watts) Maximum configuration: 705 Btu/hr (207 watts)

Airflow

Approximately 0.5 cubic meters per minute (18 cubic feet per minut e) maximum

Acoustical noise-emission values

Average sound-pressure levels:

At operator position:

Idle: 38 dBA Operating: 43 dBA

At bystander position - 1 meter (3.3 ft):

Idle: 33 dBA Operating: 37 dBA

Declared (upper limit) sound-power levels:

Idle: 4.8 bels Operating: 5.1 bels

Note: These levels were measured in controlled

18 NetVista™ Technical Information Manual

Physical specifications — A20 desktop model

Dimensions

Height: 140 mm (5.5 in.) Width: 425 mm (16.7 in.) Depth: 425 mm (16.7 in.)

Weight

Minimum configuration as shipped: 9.4 kg (20 lb) Maximum configuration: 11.3 kg (25.0 lb)

Environment

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)

Note: The maximum altitude, 2134 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.

Humidity:

System on: 8% to 80% System off: 8% to 80%

Electrical input

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: 0.52 kVA Maximum configuration: 1.50 kVA

Note: Power consumption and heat output vary

depending on the nu mber a nd typ e of opt ional features installed and the power-manage ment optional f eatures in use.

Heat output (approximate in British thermal units (Btu) per hour:

Minimum configuration: 240 Btu/hr (75 watts) Maximum configuration: 705 Btu/hr (207 watts)

Airflow

Approximately 0.5 cubic meters per minute (18 cubic feet per minut e) maximum

Acoustical noise-emission values

Average sound-pressure levels:

At operator position:

Idle: 38 dBA Operating: 43 dBA

At bystander position - 1 meter (3.3 ft):

Idle: 33 dBA Operating: 37 dBA

Declared (upper limit) sound-power levels:

Idle: 4.5 bels Operating: 4.8 bels

Note: These levels were measured in controlled

Chapter 3. Physical specifications 19

20 NetVista™ Technical Information Manual

Chapter 4. Power supply

The NetVista small form factor desktop model computer uses a 110-watt power supply. The NetVista desktop model computer uses a 155-watt power supply. The power supply provides power for the Pentium III microprocessor, core chip set, and PCI adapters. Also included is an auxiliary 5-volt (AUX 5) supply to provide power to power-management circuitry and the Wake on LAN feature. The power supply converts the ac input voltage into five dc output voltages and provides power for the following:

• System board

• Memory card

• Adapters

• Internal drives

• Keyboard and auxiliary devices

• 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-pin by 10-pin connector.

Power input

The following tables show the power-input specifications for the 155-watt and 110-watt power supplies.

Power output

Table 3. Power input requirements for the 155-watt power supply

Specification Measurements

Input voltage, low rang e 90 (min) to 137 (max) V ac Input voltage, high range 180 (min) to 265 (max) V ac Input frequency 50 Hz ± 3 or 60 Hz ± 3 Hz

Table 4. Power input requirements for the 110-watt power supply

Specification Measurements

Input voltage 90 (min) to 265 (max) V ac Input frequency 50 Hz ± 3 or 60 Hz ± 3 Hz

The power supply outputs shown in the following figures include the current-supply capability of all the connectors, including system board, direct access storage drive (DASD), PCI, and auxiliary outputs.

Table 5. Power output for the 155-watt power supply

Output voltage Regulation Minimum current Maximum current

+5 volts +5% to −4% 0.2 A 15.0 A

Table 5. Power output for the 155-watt power supply

Output voltage Regulation Minimum current Maximum current

+12 volts +5% to −5% 0.2 A 4.2 A +3.3 volts ±5% 0.2 A 12.0 A

−12 volts ±10% 0 A 0.4 A +5 volts (auxiliary) +5% to −5% 5 mA 2.0 A

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

Table 6. Power output for the 110-watt power supply

Output voltage Regulation Minimum current Maximum current

+5 volts +5% to −4% 0.2 A 10.0 A +12 volts +5% to −5% 0.02 A 2.0 A +3.3 volts ±5% 0.2 A 8.0 A

-12.0 volts ±10% 0 A 0.4 A +5 volts (auxiliary) +5 to -5% 5 mA 3.0 A

Note: The total combined 3.3 V and 5 V power must not exceed 65 watts.

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.

Table 7. Keyboard port power

+5.0 V dc 275 mA +5.0% to −4.0%

Table 8. Mouse port power

+5.0 V dc 275 mA +5.0% to –4.0%

Table 9. USB port power

+5.0 V dc 500 mA +5.0% to −4.0%

Supply voltage Maximum current Regulation limits

Output protection

The power supply protects against output overcurrent, overvoltage, and short circuits. See the power supply specifications in Chapter 4, “Power supply,” on page 21 for

details.

22 NetVista™ Technical Information Manual

An overload 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.

Internal device connectors

The power supply for the NetVista 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 22. For connector pin assignments, see T able 25 on

page 41 and Table 26 on page 42.

Chapter 4. Power supply 23

24 NetVista™ Technical Information Manual

Chapter 5. System software

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

BIOS

The NetVista computer uses the IBM BIOS, which is stored in flash EEPROM). Some of the features of the BIOS are:

• PCI support in accordance with

• Microsoft PCI IRQ Routing Table

• Plug and Play support in accordance with

• Wake on LAN support

• Asset ID support (some models)

• RPL and DHCP

• Startable CD-ROM support

• Alternate startup sequence support

• IBM look and feel, such as screen arrangements

Advanced Configuration and Power Interface (ACPI

•

• IDE logical block addressing (LBA) support

• LS 120 support

• Desktop Management (DM) BIOS 2.0 (DMI compliant)

• PC99 compliance

PCI BIOS Specification 2.2

Plug and Play Specification 1.1a

) 1.0b

Plug and Play

POST

Support for Plug and Play conforms to the following:

Plug and Play BIOS Specification 1.0a

•

Plug and Play BIOS Extension Design Guide 1.0

•

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

•

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

• Plug and Play kit for DOS and Windows

IBM 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 the

Maintenance Manual

NetVista User Guide

or the

NetVista Hardware

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

NetVista User Guide

Advanced Power Management (APM)

The NetVista computer comes 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 and controlled through the Configuration/Setup Utility program.

For more information on APM, see

Personal Computer

NetVista User Guide

Advanced Configuration and Power Interface (ACPI)

Advanced 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 at http://www.ibm.com/pc/support on the World Wide Web. Type the machine type and model number in the Quick Path field and look for the Downloadable Files link. Use the menu choices to narrow the links to the applicable file for your computer.

Diagnostic program

and

Understanding Your

The diagnostic program that comes with the NetVista computer, IBM Enhanced Diagnostics, is provided on the hidden partition of the hard disk if your computer comes with preinstalled software. 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 on the World Wide Web. Type the machine type and model number in the Quick Path field and look for the Downloadable Files link. Use the menu choices to narrow the links to the applicable file for your computer. For more information on this diagnostic program, see

NetVista User Guide

26 NetVista™ Technical Information Manual

Chapter 6. System compatibility

This chapter discusses some of the hardware, software, and BIOS compatibility issues that must be considered when designing application programs for the computer.

Hardware compatibility

The functional interfaces are compatible with the following interfaces:

• Intel 8259 interrupt controllers

• National Semiconductor NS16450 and NS16550A serial communication controllers

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

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

• Intel 8237 DMA controller, except for the Command and Request registers and the Rotate and Mask functions; the Mode register is partially supported

• Intel 8272 or 82077 diskette drive controllers

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

• All video standards using VGA, enhanced graphics adapter (EGA), color graphics adapter (CGA), monochrome graphics adapter (MDA), and Hercules modes

• 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 the in-service register bit when the interrupt routine sends an End-of-Interrupt (EOI) command to the controller. The EOI 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

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 does the following:

1. Clears the interrupt

2. Waits one I/O delay

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

number of devices sharing an interrupt level.

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 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 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 other IBM computer products; however, new functions are supported.

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 Configuration Parameters function (AH)=(C0H).

28 NetVista™ Technical Information Manual

Appendix A. Connector-pin assignments

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

External connectors

The following information shows the pin assignments for external connectors.

Monitor connector

Table 10. Monitor connector-pin assignments

Pin Signal I/O Pin Signal I/O

1 Red O 9 +5 V dc, used by DDC2B 2 Green I 10 Ground 3 Blue O 11 Monitor ID 0 - not used 4 Monitor ID 2 - not used I 12 DDC2B data I/O 5 Ground 13 Horiz ontal sync O 6 Red ground 14 Vertical sync O 7 Green ground 15 DDC2B clock I/O 8 Blue ground

USB port connectors

Table 11. USB port connect or-pin assignments

Pin Connector

1VCC 2 −Data 3+Data 4 Ground

Keyboard and mouse connectors

Serial connector

6 4

5 3

Table 12. Keyboard connector-pin assignments

Pin Signal I/O Pin Signal I/O

1Data I/O4+5 V dc 2 Reserved I/O 5 Clock I/O 3 Ground 6 Reserved I/O

Table 13. Mouse connector-pin assignments

Pin Signal I/O Pin Signal I/O

1Data I/O4+5 V dc 2 Reserved I/O 5 Clock I/O 3 Ground 6 Reserved

Table 14. Serial connector-pin assignments

Pin Signal I/O Pin Signal I/O

1 Data carrier detect I 6 Data set ready I 2 Receive data# I 7 Request to send O 3 Transmit data# O 8 Clear to send I 4 Data terminal read O 9 Ring indicator I 5 Ground

30 NetVista™ Technical Information Manual

Parallel connector

Table 15. Parallel connector-pin assignments

Pin Signal I/O Pin Signal I/O

1 STROBE# I/O 14 AUTO FD XT# O 2 Data bit 0 I/O 15 ERROR# I 3 Data bit 1 I/O 16 INIT# O 4 Data bit 2 I/O 17 SLCT IN# O 5 Data bit 3 I/O 18 Ground 6 Data bit 4 I/O 19 Ground 7 Data bit 5 I/O 20 Ground 8 Data bit 6 I/O 21 Ground 9 Data bit 7 I/O 22 Ground 10 ACK# I 23 Ground 11 BUSY I 24 Ground 12 PE I 25 Ground 13 SLCT I

Ethernet connector

Table 16. Ethernet connector- pin assignments

Pin Signal I/O Pin Signal I/O

1 TxD+ O 5 Ground 2TxD− O6RxD− I 3 RxD+ I 7 Ground 4 Ground 8 Ground

Appendix A. Connector-pin assignments 31

MIDI/joystick connector

The external MIDI/joystick connector attaches to the system board through a signal cable that connects to an internal connector on the system board. The following illustration shows the external connector.

915

Table 17. MIDI/Joystick external connector-pin assignments

1+5 v dc9+5 v dc 2 JAB1 10 JBB1 3 JACX 11 JBCX 4 Ground 12 MIDI out 5 Ground 13 JBCY 6 JACY 14 JBB2 7 JAB2 15 MIDI in 8+5

Internal connectors

The following figures show the connector-pin assignments for various internal connectors on the system board and memory card.

Pin Signal Pin Signal

Diskette drive connector

Table 18. Diskette drive connector-pin assignments

Pin Signal I/O Pin Signal I/O

1 Ground I 18 Direction in# 2 High density select O 19 Ground 3 Ground 20 Step# O 4 Not connected 21 Ground 5 Ground 22 Write data# O

32 NetVista™ Technical Information Manual

IDE connectors

Table 18. Diskette drive connector-pin assignments

Pin Signal I/O Pin Signal I/O

6 Data rat e 0 23 Gr ound 7 Ground 24 Write enable# O 8 Index# 25 Ground 9 Reserved 26 Track0# I 10 Motor enable 0# O 27 Ground 11 Grou nd 28 Write protect# I 12 Drive select 1# O 29 Ground I 13 Grou nd 30 Read data# I 14 Drive select 0# O 31 Ground 15 Grou nd 32 Head 1 select# O 16 Motor enable 1# O 33 Ground O 17 N/C I 34 Diskette change# I

Table 19. IDE connector-pin assignments

Pin Signal I/O Pin Signal I/O

1 N/C O 21 SDDREQ 2 Ground 22 Ground 3 Data bus bit 7 I/O 23 I/O write O 4 Data bus bit 8 I/O 24 Ground 5 Data bus bit 6 I/O 25 I/O read O 6 Data bus bit 9 I/O 26 Ground 7 Data bus bit 5 I/O 27 I/O channel ready I 8 Data bus bit 10 I/O 28 Ground O 9 Data bus bit 4 I/O 29 DMAACK 10 Data bus bit 11 I/O 30 Ground 11 Data bus bit 3 I/O 31 IRQ I 12 Data bus bit 12 I/O 32 CS16# I 13 Data bus bit 2 I/O 33 SA1 O 14 Data bus bit 13 I/O 34 IDE66 detect I

Appendix A. Connector-pin assignments 33

Table 19. IDE connector-pin assignments

Pin Signal I/O Pin Signal I/O

15 Data bus bit 1 I/O 35 SA0 O 16 Data bus bit 14 I/O 36 SA2 O 17 Data bus bit 0 I/O 37 CS0# O 18 Data bus bit 15 I/O 38 CS1 O 19 Ground 39 Active# I 20 Key (Reserved) 40 Ground

Memory connectors

168

Table 20. System memory connector-pin assignments

Pin Signal Pin Signal Pin Signal Pin Signal

1 VSS 43 VSS 85 VSS 127 VSS 2 DQ0 44 DU 86 DQ32 128 CKE0 3 DQ1 45 /S2 87 DQ33 129 NC 4 DQ2 46 DQMB2 88 DQ34 130 DQMB6 5 DQ3 47 DQMB3 89 DQ35 131 DQMB7 6 VCC 48 DU 90 VCC 132 A13 7 DQ4 49 VCC 91 DQ36 133 VCC 8 DQ5 50 NC 92 DQ37 134 NC 9 DQ6 51 NC 93 DQ38 135 NC 10 DQ7 52 NC 94 DQ39 136 NC 11 DQ8 53 NC 95 DQ40 137 NC 12 VSS 54 VSS 96 VSS 138 VSS 13 DQ9 55 DQ16 97 DQ41 139 DQ48 14 DQ10 56 DQ17 98 DQ42 140 DQ49 15 DQ11 57 DQ18 99 DQ43 141 DQ50 16 DQ12 58 DQ19 100 DQ44 142 DQ51 17 DQ13 59 VCC 101 DQ45 143 VCC 18 VCC 60 DQ20 102 VCC 144 DQ52 19 DQ14 61 NC 103 DQ46 145 NC 20 DQ15 62 NC 104 DQ47 146 NC 21 NC 63 NC 105 NC 147 NC 22 NC 64 VSS 106 NC 148 VSS

34 NetVista™ Technical Information Manual

Table 20. System memory connector-pin assignments

Pin Signal Pin Signal Pin Signal Pin Signal

23 VSS 65 DQ21 107 VSS 149 DQ53 24 NC 66 DQ22 108 NC 150 DQ54 25 NC 67 DQ23 109 NC 151 DQ55 26 VCC 68 VSS 1 10 VCC 152 VSS 27 /WE 69 DQ24 111 /CAS 153 DQ56 28 DQMB0 70 DQ25 112 DQMB4 154 DQ57 29 DQMB1 71 DQ26 113 DQMB5 155 DQ58 30 /S0 72 DQ27 114 NC 156 DQ59 31 DU 73 VCC 115 /RAS 157 VCC 32 VSS 74 DQ28 11 6 VSS 158 DQ60 33 A0 75 DQ29 117 A1 159 DQ61 34 A2 76 DQ30 118 A3 160 DQ62 35 A4 77 DQ31 119 A5 161 DQ63 36 A6 78 VSS 120 A7 162 VSS 37 A8 79 CK2 121 A9 163 CK3 38 A10/AP 80 NC 122 BA0 164 NC 39 NC 81 NC 123 NC 165 SA0 40 VCC 82 SDA 124 VCC 166 SA1 41 VCC 83 SCL 125 CK1 167 SA2 42 CK0 84 VCC 126 A12 168 VCC

Table 21. System memory connector pin input/output

Pin Signal name I/O Pin Signal name I/O Pin Signal name I/O

1 Ground N/A 57 MD18 I/O 113 DQMB4# I 2 MD0 I/O 58 MD19 I/O 114 S1# I 3 MD1 I/O 59 VDD N/A 115 RAS# I 4 MD2 I/O 60 MD20 I/O 116 Ground N/A 5 MD3 I/O 61 CKE1 N/A 117 A1 I 6 VDD I/O 62 VREF N/A 118 A3 I 7 MD4 I/O 63 (CKE1)* N/A 119 A5 I 8 MD5 I/O 64 Ground N/A 120 A7 I 9 MD6 I/O 65 MD21 I/O 121 A9 I 10 MD7 I/O 66 MD22 I/O 122 A11 I 11 MD8 (PAR0) I/O 67 MD23 I/O 123 NC 12 Ground N/A 68 Ground N/A 124 VDD N/A 13 MD9 I/O 69 MD24 I/O 125 CK1 N/A 14 MD10 I/O 70 MD25 I/O 126 A14 O 15 MD11 I/O 71 MD26 I/O 127 Ground N/A

Appendix A. Connector-pin assignments 35

Table 21. System memory connector pin input/output

Pin Signal name I/O Pin Signal name I/O Pin Signal name I/O

16 MD12 I/O 72 MD27 I/O 128 CKE0 N/A 17 MD13 I/O 73 VDD N/A 129 S3# I 18 VDD N/A 74 MD28 I/O 130 DQMB6# I 19 MD14 I/O 75 MD29 I/O 131 DQMB7# I 20 MD15 I/O 76 MD30 I/O 132 A15 I 21 NC I/O 77 MD31 I/O 133 VDD N/A 22 NC I/O 78 Ground N/A 134 NC N/A 23 Ground I/O 79 CK2 O 135 NC N/A 24 NC N/A 80 NC N/A 136 NC N/A 25 NC N/A 81 NC O 137 NC I/O 26 VDD N/A 82 SDA O 138 Ground N/A 27 WE# I 83 SCL O 139 MD48 I/O 28 DQMB0# I 84 VDD N/A 140 MD49 I/O 29 DQMB1# I 85 Ground N/A 141 MD50 I/O 30 S0# I 86 MD32 I/O 142 MD51 I/O 31 OE0# I 87 MD33 I/O 143 VDD N/A 32 Ground N/A 88 MD34 I/O 144 MD52 I/O 33 A0 I 89 MD35 I/O 145 NC N/A 34 A2 I 90 VDD N/A 146 VREF N/A 35 A4 I 91 MD36 N/A 147 NC N/A 36 A6 I 92 MD37 I/O 148 Ground N/A 37 A8 I 93 MD38 I/O 149 MD53 I/O 38 A10/AP I 94 MD39 I/O 150 MD54 I/O 39 NC BA1 95 MD40 I/O 151 MD55 I/O 40 VDD N/A 96 Ground N/A 152 Ground N/A 41 NC N/A 97 MD41 I/O 153 MD56 I/O 42 CK0 N/A 98 MD42 I/O 154 MD57 I/O 43 Ground N/A 99 MD43 I/O 155 MD58 I/O 44 OE2# I 100 MD44 I/O 156 MD59 I/O 45 S2# I 101 MD45 I/O 157 VDD N/A 46 DQMB2# I 102 VDD N/A 158 MD60 I/O 47 DQMB3# I 103 MD46 I/O 159 MD61 I/O 48 WE2# I 104 MD47 I/O 160 MD62 I/O 49 VDD N/A 105 NC I/O 161 MD63 I/O 50 NC N/A 106 NC I/O 162 Ground N/A 51 NC N/A 107 Ground N/A 163 CK3 O 52 NC I/O 108 NC N/A 164 NC N/A 53 NC I/O 109 NC N/A 165 SA0 O

36 NetVista™ Technical Information Manual

Table 21. System memory connector pin input/output

Pin Signal name I/O Pin Signal name I/O Pin Signal name I/O

54 Ground N/A 110 VDD N/A 166 SA1 O 55 MD16 I/O 111 CAS# N/A 167 SA0 O 56 MD17 I/O 112 DQMB4# I 168 VDD N/A

32-bit PCI connectors

A62

B62

Table 22. PCI connector-pin assignments

Pin Signal I/O Pin Signal I/O

A1 TRST# O B1 −12 V dc A2 +12 V dc B2 TCK O A3 TMS O B3 Ground A4 TDI O B4 TDO I A5 +5 V dc B5 +5 V dc A6 INTA# I B6 +5 V dc A7 INTC# I B7 INTB# I A8 +5 V dc B8 INTD# I A9 Reserved B9 PRSNT1# I A10 +5 V dc B10 Reserved A11 Reserved B11 PRSNT2# I A12 Ground B12 Ground A13 Ground B13 Ground A14 3.3 V AUX B14 3. 3 V AUX A15 RST# O B15 Ground A16 +5 V dc (I/O) B16 CLK O A17 GNT# O B17 Ground A18 Ground B18 REQ# I A19 PCI PME B19 +5 V dc A20 Address/data 30 I/O B20 Address/data 31 I/O A21 +3.3 V dc B21 Address/data 29 I/O A22 Address/data 28 I/O B22 Ground A23 Address/data 26 I/O B23 Address/data 27 I/O A24 Ground I/O B24 Address/data 25

Appendix A. Connector-pin assignments 37

Table 22. PCI connector-pin assignments

Pin Signal I/O Pin Signal I/O

A25 Address/data 24 I/O B25 +3.3 V dc A26 IDSEL O B26 C/BE 3# I/O A27 +3.3 V dc B27 Address/data 23 I/O A28 Address/data 22 I/O B28 Ground A29 Address/data 20 I/O B29 Address/data 21 I/O A30 Ground I/O B30 Address/data 19 A31 Address/data 18 I/O B31 +3.3 V dc A32 Address/data 16 I/O B32 Address/data 17 I/O A33 +3.3 V dc B33 C/BE 2# I/O A34 FRAME# I/O B34 Ground A35 Ground B35 IRDY# I/O A36 TRDY# I/O B36 +3.3 V dc A37 Ground B37 DEVSEL# I/O A38 STOP# I/O B38 Ground A39 +3.3 V dc B39 LOCK# I/O A40 SMBCLK1 I/O B40 PERR# I/O A41 SMBDATA1 I/O B41 +3.3 V dc A42 Ground B42 SERR# I/O A43 PAR B43 +3.3 V dc A44 Address/data 15 I/O B44 C/BE 1# I/O A45 +3.3 V dc I/O B45 Address/data 14 I/O A46 Address/data 13 B46 Ground A47 Address/data 11 I/O B47 Address/data 12 I/O A48 Ground I/O B48 Address/data 10 I/O A49 Address/data 9 B49 Ground A50 Key B50 Key A51 Key B51 Key A52 C/BE(0)# I/O B52 Address/data 8 I/O A53 +3.3 V dc I/O B53 Address/data 7 I/O A54 Address/data 6 B54 +3.3 V dc A55 Address/data 4 I/O B55 Address/data 5 I/O A56 Ground I/O B56 Address/data 3 I/O A57 Address/data 2 B57 Ground A58 Address/data 0 I/O B58 Address/data 1 I/O A59 +5 V dc B59 +5 V dc A60 ACK64# I/O B60 ACK64# I/O A61 +5 V dc B61 +5 V dc A62 +5 V dc B62 +5 V dc

38 NetVista™ Technical Information Manual

32-bit PCI connector with integrated Ethernet extension

Table 23. 64-bit PCI connector-pin assignments

Pin Signal I/O Pin Signal I/O

A1 TRST# O B1 −12 V dc A2 +12 V dc B2 TCK O A3 TMS O B3 Ground A4 TDI O B4 TDO I A5 +5 V dc B5 +5 V dc A6 INTA# I B6 +5 V dc A7 INTC# I B7 INTB# I A8 +5 V dc B8 INTD# I A9 Reserved B9 PRSNT1# I A10 +5 V dc B10 Reserved A11 Reserved B11 PRSNT2# I A12 Ground B12 Ground A13 Ground B13 Ground A14 3.3 V AUX B14 3.3 V AUX A15 RST# O B15 Ground A16 +5 V dc (I/O) B16 CLK O A17 GNT# O B17 Ground A18 Ground B18 REQ# I A19 PCI B19 +5 V dc A20 Address/data 30 I/O B20 Address/data 31 I/O A21 +3.3 V dc B21 Address/data 29 I/O A22 Address/data 28 I/O B22 Ground A23 Address/data 26 I/O B23 Address/data 27 I/O A24 Ground I/O B24 Address/data 25 A25 Address/data 24 I/O B2 5 +3.3 V dc A26 IDSEL O B26 C/BE 3# I/O A27 +3.3 V dc B27 Address/data 23 I/O A28 Address/data 22 I/O B28 Ground A29 Address/data 20 I/O B29 Address/data 21 I/O A30 Ground I/O B30 Address/data 19

Appendix A. Connector-pin assignments 39

Table 23. 64-bit PCI connector-pin assignments

Pin Signal I/O Pin Signal I/O

A31 Address/data 18 I/O B3 1 +3.3 V dc A32 Address/data 16 I/O B32 Address/data 17 I/O A33 +3.3 V dc B33 C/BE 2# I/O A34 FRAME# I/O B34 Ground A35 Ground B35 IRDY# I/O A36 TRDY# I/O B36 +3.3 V dc A37 Ground B37 DEVSEL# I/O A38 STOP# I/O B38 Ground A39 +3.3 V dc B39 LOCK# I/O A40 SMBCLK1 I/O B40 PERR# I/O A41 SMBDATA1 I/O B41 +3.3 V dc A42 Ground B42 SERR# I/O A43 PAR B43 +3.3 V dc A44 Address/data 15 I/O B44 C/BE 1# I/O A45 +3.3 V dc I/O B45 Address/data 14 I/O A46 Address/data 13 B46 Ground A47 Address/data 11 I/O B47 Address/data 12 I/O A48 Ground I/O B48 Address/data 10 I/O A49 Address/data 9 B49 Ground A50 Key B50 Key A51 Key B51 Key A52 C/BE(0)# I/O B52 Address/data 8 I/O A53 +3.3 V dc I/O B53 Address/data 7 I/O A54 Address/data 6 B54 +3.3 V dc A55 Address/data 4 I/O B55 Address/data 5 I/O A56 Ground I/O B56 Address/data 3 I/O A57 Address/data 2 B57 Ground A58 Address/data 0 I/O B58 Address/data 1 I/O A59 +5 V dc B59 +5 V dc A60 ACK64# I/O B60 ACK64# I/O A61 +5 V dc B61 +5 V dc A62 +5 V dc B62 +5 V dc A63 TXD0 B63 RXD0 A64 TXD1 B64 RXC1 A65 TXD2 B65 RXD2 A66 LAN_CLK I/O B66 LAN_RSTSYNC A67 Ground B67 Ground A68 EE_DOUT B68 EE_SHCLK

40 NetVista™ Technical Information Manual

Table 23. 64-bit PCI connector-pin assignments

Pin Signal I/O Pin Signal I/O

A69 EE_DIN B69 EE_CS A70 NC B70 NC I/O A71 NC B71 NC A72 NC B72 NC A73 NC B73 NC

Power supply connectors

Table 24. Power supply (P1) connector-pin assignments

Pin Signal name Pin Signal name

1 +3.3 V dc 11 +3.3 V dc 2 +3.3 V dc 12 −12 V dc 3 Ground 13 Ground 4 + 5 V dc 14 On/Off 5 Ground 15 Ground 6 +5 V dc 16 Ground 7 Ground 17 Ground 8 PWR GOOD 18 −5 V dc (not used in A40 and

A40p) 9 +5 V dc standby 19 +5 V dc 10 +12 V dc 20 +5 V dc

Table 25. Diskette drive power supply (P3) connector-pin assignments

Pin Signal name Pin Signal name

1+5 v dc3Ground 2 Ground 4 +12 v dc

Appendix A. Connector-pin assignments 41

Table 26. IDE device power supply (P5, P6, P7, P8, P9, P10, P11, P12) connector-pin assignments

Pin Signal name Pin Signal name

1+12 v dc3Ground 2Ground4+5 v dc

Wake on LAN connector

Table 27. Wake on LAN connector-pin assignments

Pin Description

1 +5 V dc standby 2 Ground 3 Wake on LAN

Tamper detection switch

Table 28. Tamper detection switch pin assignments

Pin Description

1 Tamper switch 2 Ground

RFID

Table 29. RFID pin assignments

Pin Description

1 RFID Ant 1 2Key 3 Ground 4 RFID Ant 2

CD audio connector

Table 30. CD audio connector-pin assignments

Pin Description

1 CD-in Left 2 CD-in Ground 3 CD-in Ground 4 CD-in Right

42 NetVista™ Technical Information Manual

SCSI LED connectors

Table 31. SCSI LED connector-pin assignments

Pin Description

1 Not connected 2to LED 3to LED 4 Not connected

Appendix A. Connector-pin assignments 43

44 NetVista™ Technical Information Manual

Appendix B. System address maps

The following charts represent how the hard disk stores different types of information. Address ranges and byte sizes are approximate.

System memory map

The first 640 KB of system board RAM is mapped starting at address hex 00000000. A 256 byte area and a 1 KB area of this RAM are reserved for BIOS data. Memory can be mapped differently if POST detects an error.

Table 32. System memory map

Address range

(decimal)

0 K – 512 KB 00000 – 7FFFF 512 KB Conventional 512 K – 639 KB 80000 – 9FBFF 127 KB Extended conventional 639 K – 640 KB 9FC00 – 9FFFF 1 KB Extended BIOS data 640 K – 767 KB A0000 – BFFFF 128 KB Dynamic video memory display cache 768 K – 800 KB C0000 – C7FFF 32 KB Video ROM BIOS (shadowed) 800 K – 896 KB C8000 – DFFFF 96 KB PCI space, available to adapter ROMs 896 K – 1 MB E0000 – FFFFF 128 KB System ROM BIOS (main memory shadowed) 1 MB – 16 MB 1000000 – FFFFFF 15 MB PCI space 16 MB – 4096 MB 10000000 – FFDFFFFF 4080 MB PCI space (positive decode)

Address range (hex) Size Description

FFFE0000 – FFFFFFFF 128 KB System ROM BIOS

I/O address map

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

Table 33. I/O address map

Address (hex) Size (bytes) Description

0000 – 000F 16 DMA 1 0010 – 001F 16 General I/O locations, available to PCI bus 0020 – 0021 2 Interrupt controller 1 0022 – 003F 30 General I/0 locations, available to PCI bus 0040 – 0043 4 Counter/timer 1 0044 – 00FF 28 General I/O locations, available to PCI bus 0060 1 Keyboard controller byte, reset IRQ 0061 1 System port B 0064 1 Keyboard controller, CMD/ATAT byte 0070, bit 7 1 bit Enable NMI

Table 33. I/O address map

Address (hex) Size (bytes) Description

0070, bits 6:0 6 bits Real-time clock, address 0071 1 byte Real-time clock, data 0072 1 bit Enable NMI 0072, bits 6:0 6 bits RTC address 0073 1 byte RTC data 0080 1 POST checkpoint register during POST only 008F 1 Refresh page register

0080 – 008F 16 DMA page registers 0090 – 0091 15 General I/O locations, available to PCI bus 0092 1 PS/2 keyboard controller registers 0093 – 009F 15 General I/O locations 00A0 – 00A1 2 Inter rupt controll er 2 00A2 – 00BF 30 APM control 00C0 – 00DF 31 DMA 2 00E0 – 00EF 16 Gener al I/O locations, available to PCI bus 00F0 1 Coprocessor Error register 00F1 – 016F 127 General I/O locations, available to PCI bus 0170 – 0177 8 Secondary IDE channel 01F0 – 01F7 8 Primary IDE channel 0200 – 0207 8 MIDI/joystick port 0220 – 0227 8 Serial port 3 or 4 0228 – 0277 80 General I/O locations, available to PCI bus 0278 – 027F 8 LPT3 0280 – 02E7 102 Available 02E8 – 02EF 8 Serial port 3 or 4 02F8 – 02FF 8 COM2 0338 – 033F 8 Serial port 3 or 4 0340 – 036F 48 Available 0370 – 0371 2 IDE channel 1 command 0378 – 037F 8 LPT2 0380 – 03B3 52 Available 03B4 – 03B7 4 Video 03BA 1 Video 03BC – 03BE 16 LPT1 03C0 – 03CF 52 Video 03D4 – 03D7 16 Video 03DA 1 Video 03D0 – 03DF 11 Available

46 NetVista™ Technical Information Manual

Table 33. I/O address map

Address (hex) Size (bytes) Description

03E0 – 03E7 8 Available 03E8 – 03EF 8 COM3 or COM4 03F0 – 03F5 6 Diskette channel 1 03F6 1 Primary IDE channel command port 03F7 (Write) 1 Diskette channel 1 command 03F7, bit 7 1 bit Diskette disk change channel 03F7, bits 6:0 7 bits Primary IDE channel status port 03F8 – 03FF 8 COM1 0400 – 047F 128 Available 0480 – 048F 16 DMA channel high page registers 0490 – 0CF7 1912 Available 0CF8 – 0CFB 4 PCI con fig urat ion address register 0CFC – 0CFF 4 PCI configuration data register LPTn + 400h 8 ECP port, LPTn base address + hex 400 OCF9 1 Turbo and reset control register 0D00 – FFFF 62207 Available

DMA I/O address map

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

Table 34. DMA I/O address map

Address

(hex)

0000 Channel 0, memory address register 00 – 15 Yes 0001 Channel 0, transfer count register 00 – 15 Yes 0002 Channel 1, memory address register 00 – 15 Yes 0003 Channel 1, transfer count register 00 – 15 Yes 0004 Channel 2, memory address register 00 – 15 Yes 0005 Channel 2, transfer count register 00 – 15 Yes 0006 Channel 3, memory address register 00 – 15 Yes 0007 Channel 3, transfer count register 00 – 15 Yes 0008 Channels 0–3, read status/write command register 00 – 07 0009 Channels 0–3, write request register 00 – 02

Description Bits

Byte

pointer

000A Channels 0–3, write single mas register bits 00 – 02 000B Channels 0–3, mode register (write) 00 – 07 000C Channels 0–3, clear byte pointer (write) A 000D Channels 0–3, master clear (write)/temp (read) 00 – 07

Appendix B. System address maps 47

Table 34. DMA I/O address map

Address

(hex)

000E Channels 0-3, clear mask register (write) 00 – 03 000F Channels 0-3, write all mask register bits 00 – 03 0081 Channel 2, page table address register 00 – 07 0082 Channel 3, page table address register 00 – 07 0083 Channel 1, page table address register 00 – 07 0087 Channel 0, page table address register 00 – 07 0089 Channel 6, page table address register 00 – 07 008A Channel 7, page table address register 00 – 07 008B Channel 5, page table address register 00 – 07 008F Channel 4, page table address/refresh register 00 – 07 00C0 Channel 4, memory address register 00 – 15 Yes 00C2 Channel 4, transfer count register 00 – 15 Yes 00C4 Channel 5, memory address register 00 – 15 Yes 00C6 Channel 5, transfer count register 00 – 15 Yes 00C8 Channel 6, memory address register 00 – 15 Yes 00CA Channel 6, transfer count register 00 – 15 Yes

Description Bits

pointer

Byte

00CC Channel 7, memory address register 00 – 15 Yes 00CE Channel 7, transfer count register 00 – 15 Yes 00D0 Channels 4–7, read status/write command register 00 – 07 00D2 Channels 4–7, write request register 00 – 02 00D4 Channels 4–7, write single mask register bit 00 – 02 00D6 Channels 4–7, mode register (write) 00 – 07 00D8 Channels 4–7, clear byte pointer (write) 00DA Channels 4–7, master clear (write)/temp (read) 00 – 07 00DC Channels 4–7, clear mask register (write) 00 – 03 00DE Channels 4–7, write all mask register bits 00 – 03 00DF Channels 5–7, 8- or 16-bit mode select 00 – 07

48 NetVista™ Technical Information Manual

Appendix C. IRQ and DMA channel assignments

The following figures list the IRQ and DMA channel assignments.

Table 35. IRQ channel assignments

IRQ System resource

NMI Critical system error SMI System-management interrupt for power management 0 Timer 1 Keyboard 2 Cascade interrupt from slave PIC 3 COM2 (some models only) 4COM1 5 LPT2/audio (if present) 6 Diskette controller 7LPT1 8Real-time clock 9Video, ACPI 10 MIDI/joystick (A20 models only) 11 Available to user 12 Mouse port 13 Math coprocessor 14 Primary IDE (if present) 15 Secondary IDE (if present)

Note: The default settings for COM 1 (IRQ 4), COM 2 (IRQ 3), and LPT 1 (IRQ 7) can

be changed to another IRQ.

Table 36. DMA channel assignments

DMA channel Data width System resource

0 8 bits Open 1 8 bits Open 2 8 bits Diskette drive 3 8 bits Parallel port (for ECP or EPP) 4 Reserved (cascade channel) 5 16 bits Open 6 16 bits Open 7 16 bits Open

50 NetVista™ Technical Information Manual

Appendix D. Error codes

The

NetVista User Guide

lists of error and beep codes.

POST error codes

POST error messages appear when, during startup, POST finds problems with the hardware or a change in the hardware configuration. POST error messages are 3-, 4-, 5-, 8-, or 12-character alphanumeric messages.

Beep codes

Beep codes are a series of tones in sets of two or three that sound when there are POST errors. The beep pattern represents numeric values and provide further information about the location of a potential problem.

and the

Hardware Maintenance Manual

provide complete

52 NetVista™ Technical Information Manual

Appendix E. Notices and trademarks

This appendix contains legal notices and trademark information.

Notices

This information was developed for products and services offered in the U.S.A. IBM may not offer the products, services, or features discussed in this document in

other countries. Consult your IBM representative for information on the products and services currently available in your area. 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. Any functionally equivalent product, program, or service that does not infringe any IBM intellectual property right may be used instead. However, it

is the user’s responsibility to evaluate and verify the operation of any non-IBM product, program, or service.

IBM may have patents or pending patent applications covering subject matter described 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, NY10504-1785, U.S.A.

The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law: INTERNATIONAL

BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you.

This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time without notice.

Any references in this publication to non-IBM Web sites are provided for convenience only and do not any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of the materials for this product and use of those Web sites is at your own risk.

IBM may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you.

Any performance data contained herein was determined in a controlled environment. Therefore, the results obtained in other operating environments may vary significantly . Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurement may have been estimated through extrapolation. Actual results may vary. Users of this document should verify the applicable data for their specific environment.

Trademarks

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

IBM NetVista Wake on LAN

Intel, Pentium, Celeron, 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.

54 NetVista™ Technical Information Manual

Bibliography

Advanced Power Management (APM) BIOS Interface Specification

Source: Intel Corporation

AT Attachment Interface with Extensions

Source: Intel Corporation

Extended Capabilities Port Specification Kit

Source: Microsoft Corporation

Intel Microprocessor and Peripheral Components Literature

Source: PCI Special Interest Group

Plug and Play BIOS Specification

Source: Microsoft Corporation

available at http://www.microsoft.com/hwdev

Universal Serial Bus Specifications

Source: http://www.usb.org

Video Electronics Standards Association

Source: http://www.vesa.org

AT24RF08A- PCID Specification

56 NetVista™ Technical Information Manual

Index A

accelerated graphics port (AGP) 1, 10, 11 address map

DMA input/output (I/O) 47 input/output (I/O) 45 system 45

system memory 45 Advanced Power Management (APM) 26 asset security 1 audio

controller 1, 11

device drivers 11

subsystem 11

beep codes 51 BIOS 25 bus

IDE 7

low pin-count 9

PCI 7

CD audio connector 42 Celeron 1 channel assignments

DMA 49

IRQ 49 chip set 6, 7 clock, real-time 12 CMOS RAM 12 compatibility

hardware 27

system 27 component

output 22 Configuration/Setup Utility program 26 connector

32-bit PCI pin assignments 37, 39

cable 13

CD audio pin assignments 42

diskette drive pin assignments 32

Ethernet pin assignments 31

IDE LED pin assignments 43

IDE pin assignments 33

internal device 23

internal drive 32

keyboard pin assignm ent s 30

memory pin assignments 34

MIDI/joystick pin assignments 32

monitor pin assignmen ts 29

mouse pin assignments 30

power supply pin assignments 41

SCSI LED pin assignments 43 serial pin assignments 30 Universal Serial Bus (USB) pin assignments 29 Wake on LAN pin assignments 42

controller

audio 11 hard disk drive 28 parallel port 9 serial port 8

diagnostic program 26 diskette drive

connector pin assignments 32 interface 8

subsystem 8 DMA channel assignments 49 DMA I/O address map 47

electrically eraseable programmable read-only mem-

ory (EEPROM) 26 Enhanced Diagnostics 26 environment, operating 17, 18, 19 error codes, POST 51 Ethernet

connector 13 connector pin assignments 31 subsystem 1

expansion adapters 12

fault

overvoltage 22

features

general 1 microprocessor 5 video 10, 11

Wake on LAN 2 flash update utility program 26 frequency, input power 21

hard disk drive

compatibility 28

controller 28 hardware

compatibility 27

interrupts 27 Hardware Maintenance Manual vii

IDE

bus master 1, 7 CD-ROM 1 connector pin assignments 33 interface 7

input power

frequency 21 requirements 21 voltage 21

input/output (I/O)

address map 45, 47, 48 controller 8 diskette drive 8 DMA address map 47, 48 keyboard 9 mouse 9 parallel port 9

serial port 8 interrupt request (IRQ) channel assignments 49 interrupts

hardware 27

level-sensitive 27

connector pin assignments 29 suppor 11

mouse

connector pin assignments 30 port 9

NetVista User Guide vii network

support 2, 12

noise level 17, 18, 19

ordering publication s vi i output

power supply 21 protection 22

overvoltage fault 22

keyboard

connector pin assignments 30

port 9

layout

physical 3

system board 3 LED connectors

SCSI pin assignments 43 low pin-count bus 9

machine-sensitive programs 28 memory

connector pin assignments 34

map 45

subsystem 6

synchronous dynamic random access memory

(SDRAM) 6 system 1 video 10

messages, POST error 51 microprocessor

Celeron 1, 5 Pentium III 1, 5

MIDI/joystick connector pin assignments 32 modes, power management 26 monitor

parallel

connector pin assignments 31 port 9

assignments 9 enhanced parallel port (EPP) 9 standard parallel port (SPP) 9

PCI

bus 7 connector pin assignments

32-bit 37, 39 Pentium III Xeon 5 physical layou t 3, 4 pin assignments

Ethernet connector 31 radio frequency identification (RFID) 42

tamper detection switch 42 Plug and Play 25 port

assignments 9

Ethernet 12

keyboard 9

mouse 9

parallel 9

serial 8 POST 51

code 25

initialization code 25 power

consumption 26

for components 22

input 21

internal device 23

load current 21

management modes 26

output 21

output protection 22

58 IntelliStation Z Pro Type 6866 Technical Information Manual

supply 21 supply connecto r pin assi gnments 42

Quick Reference vii

real-time clock 12 related publication s vi i

SCSI

LED connector pin assignments 43 serial connector pin assignments 30 short circuit 22 software

BIOS 25

Configuration/Setup Utility program 26

diagnostic program 26

flash update utility program 26

system 25 specifications 17 super input/output controller 8 system

compatibility 27

management 1

memory 1, 6

memory map 45

software 25 system address maps 45 system board

features 3, 4

layout 3, 4

input power 21 output power 21

Wake on LAN

connector pin assignments 42 features 2

tamper detection switch pin assignments 42 terminology vii trademarks 53

Understanding Your Personal Computer vii Univeral Serial Bus (USB)

connector pin assignments 29

video

features 10, 11

subsystem 10 voltage

Index 59

60 IntelliStation Z Pro Type 6866 Technical Information Manual

IBM

Printed in the United States of America on recycled paper containing 10& recovered post-consumer fiber.

Part Number:

IBM NetVista A40 Types 6568, 6578, 6648 Technical Information Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Major features

Other features

Network support

Wake on LAN

System board layout for the NetVista A40 and A40p computer

Riser card layout for the small form factor desktop model computer

System board layout for the A20 model computer

Microprocessor features

Pentium III microprocessor with MMX technology

Celeron microprocessor with MMX technology

Chip set control

Memory subsystem

PCI bus

IDE bus master interface

USB interface

Super I/O controller

Diskette drive interface

Serial ports

Parallel port

Keyboard and mouse ports

Low pin-count bus

Video subsystem

Features of the Intel 815E/810E integrated graphics subsystem

Features of the NVidia 4x AGP adapter

Monitor support

Audio subsystem

Network connection

Real-time clock and CMOS

Flash EEPROM

Expansion adapters

Cable connectors

Physical specifications — A40 and A40p small form factor desktop model

Physical specifications — A40 and A40p desktop model

Physical specifications — A20 desktop model

Power input

Power output

Component outputs

Output protection

Internal device connectors

BIOS

Plug and Play

POST

Configuration/Setup Utility program

Advanced Power Management (APM)

Advanced Configuration and Power Interface (ACPI)

Flash update utility program

Diagnostic program

Hardware compatibility

Hardware interrupts

Hard disk drives and controller

Machine-sensitive programs

Appendix A. Connector-pin assignments

Appendix B. System address maps

Appendix C. IRQ and DMA channel assignments

Appendix D. Error codes

Appendix E. Notices and trademarks