IBM Aptiva Hardware Maintenance Manual

Hardware Maintenance Service
for Service Level A

Machine Type 2137, 2138 and
IBM Monitors Type 2122, 2124, 2126 and 2127

2122/2124
2126/2127

2137
2138

First Edition (January 1998)

The following paragraph does not apply to any state or country where such
provisions are inconsistent with local law: INTERNATIONAL BUSINESS
MACHINES CORPORATION PROVIDES THIS PUBLICATION "AS IS"
WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
References to IBM products, programs, or services do not imply that IBM
intends to make them available outside the United States. This publication
could include technical inaccuracies or typographical errors. Changes are
periodically made to the information herein; these changes will be made in
later editions. IBM may make improvements and/or changes in the product(s)
and/or the program(s) at any time. Address comments about this publication
to IBM Helpcenter - Aptiva PC, IBM Corporation, 3039 Cornwallis Rd., Dept.
BM1/203, Research Triangle Park, NC 27709-2195, USA. Information you
supply may be used by IBM without obligation. For copies of publications
related to this product, call toll free 1-800-IBM-7282 in the Continental U.S.A.
In Canada, call toll free 1-800-465-7999.

© Copyright International Business Machines Corporation 1998.
All rights reserved.

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.

Contents

Notices.............................................................................................................V

Voltage Supply Switch Settings ..................................................................V

Safety Information......................................................................................VI

Safety Notices (Multi-Lingual Translations)...............................................VII

Laser Compliance Statement.....................................................................XI

Federal Communications Commission (FCC) Notice................................XII

Federal Communications Commission (FCC) Statement..........................XII

Canadian Department of Communications Compliance Statement.........XIII

Canadian Department of Communications Certification Label.................XIII

Trademarks................................................................................................... XIV

General Information.....................................................................................1-1

Introduction ....................................................................................................1-2

Product Overview...........................................................................................1-2

Hardware Interfaces.......................................................................................1-8

Memory Map...........................................................................................1-10

System Input / Output Addresses...........................................................1-10

System Interrupts...................................................................................1-12

DMA Channel Assignments ...................................................................1-13

Serial Port Addresses.............................................................................1-13

Parallel Port Addresses..........................................................................1-14

Refresh Rates and Monitor Frequencies................................................1-14

CMOS Reset................................................................................................1-14

Power-On Password....................................................................................1-15

BIOS-contained Model Number and Serial Number....................................1-16

Flash (BIOS) Update Procedure..................................................................1-17

BIOS Setup Utility........................................................................................1-18

Working with the Setup Menus ..............................................................1-18

Viewing System Information and Product Data......................................1-21

Disk Drives.............................................................................................1-21

Devices and I/O Ports ............................................................................1-23

Power Management...............................................................................1-25

Startup Options ......................................................................................1-27

Date and Time........................................................................................1-28

Advanced Options..................................................................................1-28

Specifications...............................................................................................1-34

Operating Requirements..............................................................................1-36

Special Tools ...............................................................................................1-36

Check Procedures........................................................................................2-1

Introduction ....................................................................................................2-2

Start ...............................................................................................................2-3

Copyright IBM Corp. 1998 I

Index of Symptoms, Messages, Error Codes, or Beeps................................2-8

Check Procedures .......................................................................................2-26

Factory-Installed Storage Devices .........................................................2-27

Factory-Installed Modem Card...............................................................2-30

Audio (Not Supported by Diagnostics Program)....................................2-32

CD-ROM Drive .......................................................................................2-34

Memory...................................................................................................2-35

Keyboard................................................................................................2-36

Mouse.....................................................................................................2-37

Power Supply.........................................................................................2-39

Monitor ...................................................................................................2-42

Undetermined Problems.........................................................................2-44

Diagnostic Aids............................................................................................3-1

Introduction ....................................................................................................3-2

Power-On Self Test........................................................................................3-2

Diagnostic Diskette........................................................................................3-3

Diagnostics Program Features.................................................................3-3

Using the Diagnostic Diskette..................................................................3-5

Using Diagnostic Program from Recovery CD.........................................3-6

Repairing Information..................................................................................4-1

Removals and Replacements........................................................................4-2

Removal Sequence..................................................................................4-3

Identifying the Parts of the System Unit...................................................4-4

Cover........................................................................................................4-6

Bay Panels...............................................................................................4-8

Bays 1, 2, 3 (5.25-In. Internal/External Bays)...........................................4-9

Bay 4, 5 (3.5-In. Diskette/Hard Disk Drives)...........................................4-10

Power Supply (2137 only)......................................................................4-13

Power Supply (2138 only)......................................................................4-15

Adapter Cards........................................................................................4-17

Memory (DIMM)......................................................................................4-18

Processor (2137 only)............................................................................4-19

Pentium II Processor Module (2138 only) ..............................................4-21

Installing the Processor Heat Sink and Fan (2138 only) ........................4-23

System Backup Battery (2137 only).......................................................4-26

System Backup Battery (2138 only).......................................................4-27

Indicator LED and Cable........................................................................4-28

System Board (2137 only)......................................................................4-30

System Board (2138 only)......................................................................4-32

Handling ESD-Sensitive Parts .....................................................................4-34

Software Recovery Procedure.....................................................................4-35

Parts/Test Point Locations..........................................................................5-1

Introduction ....................................................................................................5-2

II

2137 System Board Family............................................................................5-3

2137 System Board Layout (12J6830, 12J6890)...........................................5-5

System Board Jumper Settings (12J6830, 12J6890)...............................5-6

Processor Type Jumper Settings (12J6830, 12J6890) ............................5-7

2137 System Board Layout (12J6890, 02K2550, 10L6595,10L6653)...........5-8

System Board Jumper Settings (12J6890, 02K2550, 10L6595,10L6653)

.................................................................................................................5-9

Processor Type Jumper Settings (12J6890,02K2550, 10L6595,10L6653)

...............................................................................................................5-10

2137 System Board Layout (02K2551)........................................................5-10

System Board Jumper Settings (02K2551)............................................5-12

Processor Type Jumper Settings (02K2551) .........................................5-13

System Board Connectors and Functions..............................................5-14

2138 System Board Layout..........................................................................5-15

System Board Jumper Settings..............................................................5-16

System Board Connectors and Functions..............................................5-17

Power Supply Cable Connector Specifications............................................5-18

Factory-Installed Modem Card Layout.........................................................5-20

Factory-Installed Modem Card Connector Functions.............................5-20

3.5-In. Hard Disk Drive Jumper Locations...................................................5-21

3.5-In. Hard Disk Drive Jumper Settings................................................5-23

5.25-In. Hard Disk Drive Jumper Locations.................................................5-24

5.25-In. Hard Disk Drive Jumper Settings..............................................5-24

CD-ROM Drive.............................................................................................5-25

CD-ROM Drive Rear Panel Connectors and Features...........................5-27

CD-ROM Drive Jumper Settings ............................................................5-27

DIMM Configurations ...................................................................................5-28

System Board Connector Pin Signals..........................................................5-28

Monitor Port Signals...............................................................................5-28

Serial Port Signals..................................................................................5-28

Parallel Port Signals...............................................................................5-29

Mouse Port Signals................................................................................5-29

Keyboard Port Signals............................................................................5-29

Diskette Drive Cable Connector Signals................................................5-30

Hard Disk Cable Connector Signals.......................................................5-31

Safety Inspecion Guide................................................................................6-1

General Guidelines ........................................................................................6-2

Parts Catalog................................................................................................7-1

Abbreviations .................................................................................................7-2

Assembly 1: Machine Type 2137 System Unit - Exterior...............................7-3

Assembly 2: Machine Type 2137 System Unit - Interior................................7-4

Assembly 3: Machine Type 2137 FDD, HDD Drive .......................................7-7

Assembly 4: Machine Type 2137 CD-ROM, Modem Card.............................7-9

Assembly 5: Machine Type 2137 Monitor and Power Cord.........................7-12

Assembly 6: Machine Type 2137 Keyboard and Mouse..............................7-14

Notice III

Assembly 7: Machine Type 2137 Software..................................................7-15

Assembly 1: Machine Type 2138 System Unit - Exterior.............................7-16

Assembly 2: Machine Type 2138 System Unit - Interior..............................7-17

Assembly 3: Machine Type 2138 FDD, HDD Drive .....................................7-19

Assembly 4: Machine Type 2138 CD-ROM, Modem Card...........................7-21

Assembly 5: Machine Type 2138 Monitor and Power Cord.........................7-24

Assembly 6: Machine Type 2138 Keyboard and Mouse..............................7-25

Assembly 7: Machine Type 2138 Software..................................................7-26

Appendix A. FRU Number Index
Appendix B. Online Support Information
Appendix C. Model/Monitor Configurations and FRU Part Numbers
Index

IV

Notices

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 IBM’s product, program, or service may be
used. Any functionally equivalent product, program, or service that does not
infringe any of IBM’s intellectual property rights, or other legally protectable
rights, may be used instead of the IBM product, program, or service.
References in this publication to IBM products, programs, or services are
purely hardware-related and do not cover circumstances of software
problems. Evaluation and verification of operation in conjunction with other
products, program, or services, except those expressly designated by IBM are
the user’s responsibility.

IBM may have patents or pending patent applications covering subject matter
in this document. The featuring of these patents, pending or otherwise, in this
document does not give you any license to these patents. You can send
license inquires, in writing, to the IBM director of Commercial Relations, IBM
Corporation, Purchase, NY10577.

Voltage Supply Switch Settings

Your IBM Aptiva Personal Computer
be set correctly for your voltage supply. If your monitor or system unit has a
voltage switch, complete these steps to make sure each switch is set
correctly:

1. Determine the correct voltage switch setting for your area:

Voltage Supply Range Voltage Switch Setting
100-127 V 115 V or 115V
200-240 V 230 V or 230V

2. Locate the voltage switch on the back of your monitor or system unit. If the

setting shown on the switch is:

• Correct: start setting up your IBM Aptiva computer.

• Incorrect: change the voltage switch setting.

Notice V

might

have voltage switches, which must

Safety Information

The construction of the IBM Aptiva Personal Computer provides extra
protection against the risk of electrical shock. This computer has a power cord
with a three-prong plug that is required to ground metal parts. It is the
responsibility of the person installing the computer to connect it to a properly
grounded electrical outlet. Seek professional assistance before using an
adapter or extension cord; these devices could interrupt the grounding circuit.

If the computer is connected to an electrical outlet that is incorrectly
connected to the building wiring, serious electrical shock could result.

For continued protection against the risk of electrical shock:

•

Connect your computer only to an electrical outlet of the correct voltage. If

you are unsure about the voltage of the electrical outlet you are using,

contact your local power company.

•

If your computer has cables other than the power cords, you must connect

them before plugging the power cord into an electrical outlet. Before

removing these cables, you must first unplug the power cords from the

outlet.

•

If your computer has a telephone connection, do not touch the telephone

cords when there is lightning in the area.

•

Do not use or store the computer in an area where it can become wet.

•

Make sure all replacement parts have characteristics identical or

equivalent to the original parts. Other parts may not have the same safety

features.

•

Personal injury or electrical shock may result if you undertake actions

other than those specifically described in this book. This is particularly true

if you try to service or repair the power supply, monitor, or built-in modem.

Always refer service or repairs to qualified service personnel.

VI

Safety Notices (Multi-Lingual T ransl ati ons)

The safety notices in this section are provided in the following languages:

• English

• Brazilian/Portuguese

• Chinese

• French

• German

• Hungarian

• Italian

• Russian

• Slovakian

• Spanish

Notice VII

Safety Notice 1

Before removing any FRU, power-off the computer, unplug all power cords
from electrical outlets, then disconnect any interconnecting cables.

Antes de remover qualquer unidade substituível no local (Field Replaceable
Unit - FRU), desligue o computador, retire todos os cabos de alimentação das
respectivas tomadas eléctricas, remremova a pilha (se instalada) e, em
seguida, desconecte todos os cabos de interligação.

Avant de retirer une unité remplaçable en clientèle, mettez le système hors
tension, débranchez tous les cordons d'alimentation des socles de prise de
courant, retirez la batterie et déconnectez tous les cordons d'interface.

Die Stromzufuhr muß abgeschaltet, alle Stromkabel aus der Steckdose
gezogen, der Akku entfernt und alle Verbindungskabel abgenommen sein,
bevor eine FRU entfernt wird.

Prima di rimuovere qualsiasi FRU, spegnere il sistema, scollegare dalle prese
elettriche tutti i cavi di alimentazione, rimuovere la batteria e poi scollegare i
cavi di interconnessione.

Antes de quitar una FRU, apague el sistema, desenchufe todos los cables de
las tomas de corriente eléctrica, quite la batería y, a continuación, desconecte
cualquier cable de conexión entre dispositivos.

VIII

Safety Notice 2

The lithium battery can cause a fire, explosion, or severe burn. Do not
recharge it, remove its polarized connector, disassemble it, heat it above
100±C (212±F), incinerate it, or expose its cell contents to water. Dispose of
the battery as required by local ordinances or regulations. Use only the
battery in the appropriate parts listing. Use of an incorrect battery can result in
ignition or explosion of the battery.

A pilha de lítio representa risco de incêndio, explosão ou queimaduras graves.
Não recarregue, desmonte ou exponha a pilha a temperaturas superiores a
100±C (212±F), não a incinere ou ponha o conteúdo da respectiva célula em
contacto com a água nem remova o respectivo conector polarizado. Destrua a
pilha de acordo com as normas ou regulamentações locais. Utilize apenas a
pilha com o "part-number" indicado nas listas apropriadas. A utilização de
uma pilha incorrecta pode resultar na igniçãou explosão da mesma.

Elle présente des risques d'incendie, d'explosion ou de brûlures graves. Ne la
rechargez pas, ne retirez pas son connecteur polarisé et ne la démontez pas.
Ne l'exposez pas à une temperature supérieure à 100±C, ne la faites pas
brûler et n'en exposez pas le contenu à l'eau. Mettez la pile au rebut
conformément à la réglementation en vigueur. Une pile inappropriée risque
de prendre feu ou d'exploser.

Die Systembatterie ist eine Lithiumbatterie. Sie kann sich entzünden,
explodieren oder schwere Verbrennungen hervorrufen. Batterien dieses Typs
dürfen nicht aufgeladen, zerlegt, über 100 C erhitzt oder verbrannt werden.
Auch darf ihr Inhalt nicht mit Wasser in Verbindung gebracht oder der zur
richtigen Polung angebrachte Verbindungsstecker entfernt werden. Bei der
Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim
Ersetzen der Batterie nur Batterien des Typs verwenden, der in der
Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu
Entzündung oder Explosion führen.

Notice IX

Safety Notice 2 (conitued)

La batteria di supporto e una batteria al litio e puo incendiarsi, esplodere o
procurare gravi ustioni. Evitare di ricaricarla, smontarne il connettore
polarizzato, smontarla, riscaldarla ad una temperatura superiore ai 100 gradi
centigradi, incendiarla o gettarla in acqua. Smaltirla secondo la normativa in
vigore (DPR 915/82, successive disposizioni e disposizioni locali). L'impiego
di una batteria non adatta potrebbe determinare l'incendio o l'esplosione della
batteria stessa.

La bateria de repuesto es una bateria de litio y puede provocar incendios,
explosiones o quemaduras graves. No la recargue, ni quite el conector
polarizado, ni la desmonte, ni caliente por encima de los 100±C (212±F), ni la
incinere ni exponga el contenido de sus celdas al agua. Deséchela tal como
dispone la normativa local.

X

Laser Compliance Statement

The CD-ROM drive in the computer is a laser product. The CD-ROM drive's
classification label (sample shown below) is located on the drive.

CLASS 1 LASER PRODUCT

APPAREIL A LASER CLASSE 1

LASER KLASSE 1

LUOKAN 1 LASERLAITE

PRODUIT LASER

CATEGORIE 1

The CD-ROM drive is certified in the U.S. to conform to the requirements of
the Department of Health and Human Services 21 Code of Federal
Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products.

In other countries, the drive is certified to conform to the requirements of
EN60825.

Class 1 laser products are not considered to be hazardous. The CD-ROM
drive has an internal Class 1, 0.5-milliwatt, aluminum gallium-arsenide laser
that operates at a wavelength of 760 to 810 manometers.

The design of the laser system and the CD-ROM drive ensures that there is
no exposure to laser radiation above a Class 1 level during normal operation,
user maintenance, or servicing conditions.

Notice XI

Federal Communications Commission (FCC) Notice

The following statement applies to this IBM product. The statement for other
IBM products intended for use with this product will appear in their
accompanying manuals.

Federal Communications Commission (FCC)
Statement

NOTE:

Properly shielded and grounded cables and connectors must be used in order
to meet FCC emission limits. Proper cables and connectors are available from
IBM authorized dealers. IBM is not responsible for any radio or television
interference caused by using other than recommended cables and connectors
or by unauthorized changes or modifications to this equipment. Unauthorized
changes or modifications could void the user's authority to operate the
equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.

This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment
generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or
more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from

that to which the receiver is connected.

• Consult an IBM authorized dealer or service representative for
help.

XII

Canadian Department of Communications Compliance
Statement

This equipment does not exceed Class B limits per radio noise emissions for
digital apparatus, set out in the Radio Interference Regulation of the Canadian
Department of Communications.

Canadian Department of Communications
Certification Label

NOTICE:

Users should ensure for their own protection that the electrical ground
connections of the power utility, telephone lines and internal water pipe
system, if present, are connected together. This precaution may be particularly
important in rural areas.

ATTENTION:

The Canadian Department of Communications label identifies
certified equipment. This certification means that the equipment
meets certain telecommunications network protective, operational
and safety requirements. The Department does not guarantee the
equipment will operate to the user's satisfaction. Before installing this
equipment, users should ensure that it is permissible to be connected
to the facilities of the local telecommunications company. The
equipment must also be installed using an acceptable method of
connection. In some cases, the company's inside wiring associated
with a single line individual service may be extended by means of a
certified connector assembly (telephone extension cord). The
customer should be aware that compliance with the above conditions
may not prevent degradation of service in some situations. Repairs to
certified equipment should be made by an authorized Canadian
maintenance facility designated by the supplier. Any repairs or
alterations made by the user to this equipment, or equipment
malfunctions, may give the telecommunications company cause to
request the user to disconnect the equipment.

Users should not attempt to make such connections
themselves, but should contact the appropriate electric inspection
authority, or electrician, as appropriate.

Notice XIII

Trademarks

The following terms are trademarks or service marks of IBM Corporation in the
United States and other countries.

Aptiva
AT
HelpCenter
IBM
Operating System/2

The following terms are trademarks or service marks of other companies as
follows:

ATI
CompuServe
Intel
Microsoft
MS
Pentium
PC Doctor
Sound Blaster

OS/2
Personal System/2
PS/1
PS/2

ATI Technologies, Inc.
CompuServe Incorporated
Intel Corporation
Microsoft Corporation
Microsoft Corporation
Intel Corporation
Watergate
Creative Labs, Inc.

UNIX is a registered trademark in the United States and other countries
licensed exclusively through X/Open Company Limited.

Microsoft and Windows are trademarks or registered trademarks of Microsoft
Corporation.

Other company, product, and service names, which may be denoted by a
double asterisk (**), may be trademarks or service marks of others.

XIV

Preface

This manual contains service information for the

(SL-A)

model of the IBM Aptiva Personal Computer, worldwide.

This manual is intended to be used as a stand-alone document to service
Aptiva machine type 2137/2138 product. It is divided into the following
chapters:

“General Information”
“Check Procedures”

the falling Field Replaceable Unit (FRU).

" Diagnostic Aids"
"Removal and Replacements"

disassembling and re-assembling machine.

"Parts/Test Point Locations"

locations of the major parts, jumpers, and connectors .

"Safety Inspection Guide”

for safety problems before putting the machine under a Maintenance
Agreement.

"Parts Catalog"

individual FRUs.

Appendix A, "Part Number Index"

order.

Appendix B, "Online Support Information"

information.

Appendix C, "Model/Monitor Configurations and FRU Part Numbers"

contains models and FRUs listed by part number for all countries.

contains descriptions, illustrations, and part numbers for

contains a brief description of this manual.

provides step-by-step instructions that aid in locating

explains the diagnostics for removing FRUs.

contains illustrations and descriptions of

contains illustrations and descriptions of the

contains information about inspecting a machine

contains part numbers listed in numerical

2137/2138 Service Level A

contains online support

Notice XV

Information

General Information.....................................................................................1-1

Introduction ....................................................................................................1-2

Product Overview...........................................................................................1-2

Hardware Interfaces.......................................................................................1-8

Memory Map...........................................................................................1-10

System Input / Output Addresses...........................................................1-10

System Interrupts...................................................................................1-12

DMA Channel Assignments ...................................................................1-13

Serial Port Addresses.............................................................................1-13

Parallel Port Addresses..........................................................................1-14

Refresh Rates and Monitor Frequencies................................................1-14

CMOS Reset................................................................................................1-14

Power-On Password....................................................................................1-15

BIOS-contained Model Number and Serial Number....................................1-16

Flash (BIOS) Update Procedure..................................................................1-17

BIOS Setup Utility........................................................................................1-18

Working with the Setup Menus ..............................................................1-18

Viewing System Information and Product Data......................................1-21

Disk Drives.............................................................................................1-21

Devices and I/O Ports ............................................................................1-23

Power Management...............................................................................1-25

Startup Options ......................................................................................1-27

Date and Time........................................................................................1-28

Advanced Options..................................................................................1-28

Specifications...............................................................................................1-34

Operating Requirements..............................................................................1-36

Special Tools ...............................................................................................1-36

Copyright IBM Corp. 1998 1-1

Introduction

This chapter gives a general overview of the Aptiva Machine Type 2137/2138,
describes the standard and optional features, and details functional and
environmental specifications.

Product Overview

Machine Type 2137 contains three PCI slots and four ISA slots, and the
system board supports the Pentium processor. Machine Type 2138 contains
four PCI slots and two ISA slots, and the system board supports the Pentium
II processor. Machine Type 2138 supports Accelerated Graphics Port (AGP).
It allows all installed system memory to be used as texture memory, yielding a
huge texture footprint to enhance 3D graphical display performance.

Below lists 2137 and 2138 system features:

Processors (Machine Type 2137)

•

Pentium socket-7 Zero Insertion Force (ZIF) connector. You must remove

the old processor to install an upgrade processor.

•

Detachable CPU heat sink with fan.

•

One of the following processors can be installed:

−

Intel Pentium P54C-166 MHz internal; 66 MHz external

−

Intel Pentium P54C-200 MHz internal; 66 MHz external

−

Intel Pentium with MMX P55C-200 MHz internal; 66 MHz external

−

Intel Pentium with MMX P55C-233 MHz internal; 66 MHz external

−

IBM Cyrix 6x86MX-PR166; 66 MHz external, 133 MHz internal

−

AMD K6-166 processor; 66 MHz external, 166 MHz internal

−

AMD K6-200 processor; 66 MHz external, 200 MHz internal

−

AMD K6-233 processor; 66 MHz external, 233 MHz internal

−

AMD K6-266 processor; 66 MHz external, 266 MHz internal

−

AMD K6-300 processor; 66 MHz external, 300 MHz internal

Processors (Machine Type 2138)

•

Processor with the capabilities of MMX™ technology

•

Processor in Single Edge Contact (S.E.C.) cartridge packaging technology

1-2

•

Dual Independent Bus architecture separates dedicated external system

bus and dedicated internal high-speed cache bus socketability

•

One of the following processors can be installed:

−

Intel Pentium II -266 MHz internal, 66 MHz external

−

Intel Pentium II -300 MHz internal, 66 MHz external

Memory

•

256-KB Pipeline Burst Static RAM (PBSRAM). Fixed onboard at 2137,

built-in Pentium II processor at 2138. (For some 2137 models, it may

come without cache memory.)

•

Onboard fixed video Synchronize Graphics RAM (SGRAM). 1- or 2-MB for

Machine Type 2137, 4-MB for 2138.

•

168-pin synchronous dynamic random access memory (SDRAM). dual

inline memory module (DIMM) sockets.

−

2 sockets design at Machine Type 2137, 3 sockets at 2138.

−

8-MB, 16-MB, or 32-MB DIMM (64-MB, 128-MB optional upgrade).

−

Gold contacts, non-Parity (64-bit), 100 MHz, 3.3 volt DIMMs.

−

Maximum system memory is 256 MB at Machine Type 2137 and
384 MB at 2138. Refer to "DIMM Configurations" on page 5-28.

External Ports

•

Video port (15-pin D-sub connector)

•

Parallel port (25-pin D-sub connector)

•

Serial port (9-pin D-sub connector)

•

Game/MIDI port (15-pin D-sub connector)

•

Keyboard port (6-pin PS/2 mini-din connector)

•

Mouse port (6-pin PS/2 mini-din connector)

•

Two USB ports

•

Microphone-in jack

•

Speaker-out jack

•

Line-in jack

General Information 1-3

Diskette Drive

•

AT-type

•

3.5-in. 1.44 MB slimline diskette drive.

Hard Disk Drive

•

3.5-in., 1-in. height or 5.25-in, 2-in. height IDE AT drive.

•

128 KB "look-ahead" cache memory in hard disk drive.

•

Average and minimum 10 ms seek time, access time varies by the hard

disk drive and the hard disk drive manufacturer.

CD-ROM Drive

•

5.25-in. high-performance, sixteen-speed (16X), twenty-speed (20X) or

twenty four-speed (24X) CD-ROM IDE/AT drive.

•

Read data and play audio from standard and mini CD-ROM and audio

compact discs (audio CDs).

Multimedia

•

One pair of external speakers with power adapter (some may come with

an additional sub-woofer and power adapter)

•

Standard unidirectional microphone or advanced noise canceling

microphone.

NOTE: Microphone is an optional item, some models may come without

it.

Power Management

•

Compliant to advanced power management (APM) specification revision

1.2 and supports display power management signaling (DPMS) monitor.

•

Software shutdown by Windows 95.

•

System enters suspend mode if any of following conditions are met:

−

Execute suspend feature from Windows 95 Start menu

−

Press system power button if it sets to act as suspend function.
See "Power Management Mode" on page 1-25.

−

System sleep timer set in the BIOS Setup elapses.

•

Monitor enters standby mode if system sleep timer set in the BIOS

elapses.

1-4

•

Support modem ring wake-up from system suspend. See "Modem Wake-

Up on Ring" on page 1-26.

Power Supply

•

200-W switchable high/low voltage power supply

•

Thermal sensing variable fan speed

•

One connector for a detachable grounded 3-wire power cord.

•

Four DASD connectors: one mini power connector and three standard

power connectors.

•

Power supply itself has no on/off switch. A 3-wire auxiliary control cable

connects to system board, it supplies standby power to system for

enabling normal on/off switch and Windows 95 software shutdown

features.

Internal Cabling

•

A pair of 6-pin power input cables from power supply to system board

•

One 3-wire auxiliary standby power connector from power supply to

system board.

•

Two 40-pin ribbon cables for hard disk drive and CD-ROM drive.

•

One 34-pin ribbon cable for AT diskette drive.

•

One 2-pin (2-wire) cable for power switch.

•

One 4-pin (2-wire) cable for hard disk drive light-emitting diode (LED).

•

One 3-pin (2-wire) cable for power light-emitting diode (LED).

•

One 2-pin to 3-pin (2-wire) adapter connects between the system board

and the power LED cable at 2138.

•

One 4-pin modem voice-in/speaker-out cable (optional).

•

One 2-pin modem ring-in wake-up cable at 2137.

NOTE: Machine Type 2137 and 2138 both have modem ring-in wake-up

feature. 2138 doesn't need a modem ring-in wake-up cable
because its BIOS monitors modem IRQ signal.

Modem

•

33.6 Kbps or 56 Kbps ISA plug and play modem adapter card with

data/fax/voice features.

General Information 1-5

NOTE: Modem voice feature is an optional item, some models may come

whithout it. If system has this feature, a 4-pin modem voice­in/speaker-out cable should present.

•

Telephone line-out (RJ-11) connector.

•

Telephone line-in (RJ-11) connector.

Monitor

•

Super video graphics array (SVGA) monitor.

•

Compliant to VESA power saving mode.

•

Connector for a detachable grounded 3-wire power cord.

•

1.8-m (5.8-ft) attached signal cable.

•

Auto-sensing power input for 100 Vac to 240 Vac.

•

14” (13.1” viewable image size) monitor

−

0.28-mm dot pitch

−

Automatic scanning horizontal frequencies from 30KHz to 54KHz
and all vertical frequencies between 50Hz and 120Hz.

−

With DDC2A/B feature

•

15” (13.6” viewable image size) monitor

−

0.28-mm dot pitch

−

Automatic scanning horizontal frequencies from 30KHz to 54KHz
and all vertical frequencies between 50Hz and 120Hz.

−

With DDC2A/B feature

•

15” (13.7” viewable image size) monitor

−

0.28-mm dot pitch

−

Automatic scanning horizontal frequencies from 30KHz to 69KHz
and all vertical frequencies between 50Hz and 120Hz.

−

With DDC1/2B+ feature and OSD (on-screen display) menu

•

17” (15.7” viewable image size) monitor

−

0.27-mm dot pitch

−

Automatic scanning horizontal frequencies from 30KHz to 72KHz
and all vertical frequencies between 50Hz and 120Hz.

−

With DDC1/2B+ feature and OSD (on-screen display) menu

1-6

Keyboard

•

104-key, or 105-key rubber dome keyboard with 1.8-m(5.8-ft) cable.

Mouse

•

PS/2 mouse with 1.8-m(5.8-ft) cable

General Information 1-7

Hardware Interfaces

The following peripheral interfaces for adapters, options, and drives are
supported in the system unit.

Table 1- 1 System Board Hardware Interfaces

Item Interface

Expansion slot
for I/O adapter
cards

Hard disk drives Two PCI local bus Enhanced IDE v1.0 compatible hard

CD-ROM drive 5.25-in. high-performance, sixteen-speed (16X), or

Diskette drive AT diskette interface
Video Physical interface is compatible with the IBM Personal

Machine Type 2137:
Three PCI (peripheral component interconnect) v2.1
compatible expansion slots that operates up to 33 MHz
bus speed
Four IBM AT-ISA Plug and Play compatible expansion
slots that operates at 8 MHz bus speed.

Machine Type 2138:
Four PCI v2.1 compatible expansion slots that operates
up to 33 MHz bus speed
Two IBM AT-ISA Plug and Play compatible expansion
slots that operates at 8 MHz bus speed.

disk drive interfaces that support PIO mode 3/4 and
DMA 32-bit access.

twenty four-speed (24X) CD-ROM IDE/AT drive
Support Bootable CD-ROM Format specification

version 1.0.
Compliant to Audio-CD, Video-CD, CD-ROM/XA,

Karaoke-CD, and Photo-CD (both single and multi­session) format.

System/2 (PS/2) VGA interface.
For refresh rates and monitor frequency settings, see

"Refresh Rates and Monitor Frequencies" on page 1-14
Machine Type 2138:

Support Accelerated Graphics Port (AGP) to enhance
3D graphical display performance.

1-8

Table 1- 1 System Board Hardware Interfaces

Item Interface

Modem One 33.6 Kbps or 56 Kbps IBM AT-ISA plug and play

modem adapter card with data/fax/voice features.
NOTE: Modem voice feature is an optional item, some

models may come whithout it.

Audio Audio is compatible with Sound Blaster (Creative Labs,

Inc.).
Pointing device IBM PS/2-compatible mouse
Keyboard device IBM PS/2-compatible keyboard
Serial port 9-pin connector with RS232D electrical interface
Parallel port Supports a bidirectional, ECP bidirectional, or EPP

bidirectional interface.
Game port Game port interface for joystick. It also supports MIDI.

General Information 1-9

Memory Map

This table shows the hexadecimal addresses for the system memory regions.
You may use this information for adapter cards that require you to set up
memory regions.

Table 1- 2 Memory Map Table

Address range Description

0~512 KB
(000000 ~ 07FFFF)

512~640 KB
(080000 ~ 09FFFF)

640~768 KB
(0A0000 ~ 0BFFFF)

768~800 KB
(0C0000 ~ 0C7FFF)

800~896 KB
(0C8000 ~ 0DFFFF)

896~960 KB
(0E0000 ~ 0EFFFF)

960~1024 KB
(0F0000 ~ 0FFFFF)

1024 KB ~ Upper Limit Main memory
Upper Limit ~ 4 GB PCI memory

Base memory

Host/PCI memory

PCI/ISA video buffer memory

Video BIOS memory

ISA card BIOS and buffer memory

BIOS extension memory
Setup and POST memory
PCI development BIOS

System BIOS memory

System Input / Output Addresses

This table shows the hexadecimal addresses for each of the system board
input/output (I/O) functions. You may use this information for adapter cards
that require you to set up I/O addresses.

Table 1- 3 System Input / Output Addresses Table

Address range
(hexadecimal)

0000-001F DMA controller 1
0020-003F Interrupt controller 1

1-10

Function

Table 1- 3 System Input / Output Addresses Table

Address range

Function

(hexadecimal)

0040-0047 System timer
0050-0057 System timer
0060-006F System controller 8742
0070 CMOS RAM address and NMI mask
0078-007B Real-time clock
0080-009F DMA page register
00A0-00BF Interrupt controller 2
00C0-00DF DMA controller 2
00F0 Clear math coprocessor
00F1 Reset math coprocessor
00F8-00FF Math coprocessor
0170-0177, 0376 Secondary IDE controller
01F0-01F7, 03F6 Primary IDE controller
0200-0207 Joystick
0220-022F,

Audio
0388-038B,
0534-0537

0330-0333 MIDI
0278-027F Parallel port 2
02F8-02FF Serial port
0378-037F Parallel port 1
03F0-03F7 Diskette drive controller
03F8-03FF Modem
0CF8 PCI mechanism #1 configuration

address register
0CFC PCI mechanism #2 configuration

data register
7400-740F Bus master IDE

General Information 1-11

System Interrupts

This table shows the system interrupt requests (IRQs) and their functions. You
may use this information if you install an adapter card that requires you to set
IRQs.

Table 1- 4 System Interrupts Table

IRQ Function

0Timer
1 Keyboard
2 Cascade interrupt control
3 Serial port
4 Modem

(available to user if modem is not present)
5 Audio
6 Diskette drive
7 Parallel port
8 Real-time clock
9 Available to user

10 Available to user
11 USB
12 PS/2 mouse
13 Math coprocessor
14 Primary IDE
15 Secondary IDE

1-12

DMA Channel Assignments

This table shows the channel assignments for direct memory access (DMA).
DMA allows I/O devices to transfer data directly to and from memory. You may
need to select an open DMA channel if you add an I/O device that uses DMA.

Table 1- 5 DMA Channel Assignments Table

DMA channel Assignment

0 Available to user
1 Audio
2 Diskette drive
3 Audio/ECP
4 Cascade
5 Available to user
6 Available to user
7 Available to user

Serial Port Addresses

The built-in serial port supports these addresses and interrupts.

Table 1- 6 Serial Port Addresses Table
Address Windows 95 Interrupt Default
3F8 COM1 IRQ 4 Modem
2F8 COM2 IRQ 3 Serial port
3E8 COM3 IRQ 4
2E8 COM4 IRQ 3

General Information 1-13

Parallel Port Addresses

The built-in parallel port supports these addresses and interrupts.

Table 1- 7 Parallel Port Addresses Table
Address Interrupt Default
378 IRQ 7
3BC IRQ 7
278 IRQ 5 Audio

Refresh Rates and Monitor Frequencies

The following table lists the maximum vertical refresh rates supported by the
system’s ATI 3D Rage II+ and 3D Rage Pro AGP video controller.

IMPORTANT:

Table 1- 8 On-board Video Controller

Resolution →
Color ↓
256 100 Hz. 100 Hz. 100 Hz.
64,000 100 Hz. 100 Hz. -­16,000,000 100 Hz. -- --

The maximum refresh rate set for each resolution should be
within the monitor’s vertical frequency specification. Refer to the
service manual provided with your monitor.

Maximum Vertical Refresh Rate

640x480 800x600 1024x768

CMOS Reset

This system does not deny access to the BIOS Setup Utility. Execute “Load
BIOS Default Settings” in BIOS Setup to clear the corrupted CMOS data. See
“Loading the Default Settings” on page 1-19.

1-14

Power-On Password

A power-on password denies access to the system by an unauthorized user
when the system is powered on. When a power-on password is active, the
password prompt appears on the screen each time the system is powered on.
The system starts after the proper password is entered.

In some cases, you might be required to service a system with an active and
unknown power-on password. To clear a password from the system, first
identify the system password jumper/switch by referring to "2137 System
Board on page 5-5 or "2138 System Board Layout" on page 5-15”, then follow
these steps.

1. Turn off system unit.

2. Unplug power cable from the electrical outlet.

WARNING:

Machine Type 2137:

3.
bypass password check process. See "2137 System Board on page 5-5.

Machine Type 2138:

position to bypass password check process. See "2138 System Board
Layout" on page 5-15”.

4. Plug power cable, turn on the system, and depress F1 during POST to
enter BIOS Setup menu.

5. Select “Advanced Options”, then enter “Security Options” and set “Power­On Password” setting to “None” to clear password.

6. Save and exit from BIOS Setup.

7. Unplug power cable from electrical outlet.

Machine Type 2137:

8.
to enable password check. See "2137 System Board "on page 5-5.

Machine Type 2138:

check) position to enable password check process. See "2138 System
Board Layout" on page 5-15.

IMPORTANT:

Do not attempt these steps with the power cord plugged into
the electrical outlet. The power supply maintains +5 Vdc of
standby power when the power cord is plugged. System damage
might result if the power cord is not unplugged during testing.

Move jumper JP9 from pins 1-2 to pins 2-3 to
Set SW1(switch1) to On (bypass password check)

Move the jumper JP9 from pins 2-3 back to pins 1-2
Reset SW1(switch1) to Off (enable password

To reinstall the password, the user must enter a password

in the Setup Utility.

General Information 1-15

BIOS-contained Model Number and Serial Number

The model number and serial number information is stored in BIOS ROM and
displayed in the “Product Data” of BIOS Setup main menu. If a repair is
completed by replacing a new system board or a new BIOS ROM, then you
are required to input the original system’s model number and serial number to
the new BIOS ROM.

Follow these steps to input the model number and serial number to BIOS:

1. Prepare a bootable DOS diskette with CHGDMI.EXE and MODEL.DMI
files.

2. Insert the diskette and boot from drive A.

WARNING:

4. At the DOS prompt, type A:>CHGDMI/I then press Enter. When the
screen shows:

Enter the model number and press Enter to continue. You can type a
maximum of 16 characters (without space).

5. When the screen shows:

Enter the serial number and press Enter to continue. You can type a
maximum of 16 characters (without space).

6. Type A:>CHGDMI/D and press Enter to display and verify your input
model number and serial number information.

Do not boot with any memory related driver such as

HIMEM.SYS, EMS.SYS ….

A:>MODEL NUMBER:

A:>S/N NUMBER:

1-16

Flash (BIOS) Update Procedure

NOTE:

1. Prepare a bootable DOS diskette disk with AFLASH.EXE, MSG.DAT,

2. Insert the diskette and boot from drive A.

3. At the DOS prompt, type A:> AFLASH then press Enter.

4. Press any key to pass the information screen. Follow the instructions on

5. Follow the instructions on the screen to execute “PROGRAM FLASH

7. Follow the instruction on screen to complete the programming BIOS.

8. Power off system after the BIOS is completely updated.

The flash update procedure does not change the model number and
serial number information in BIOS.

RXX-YY.RN and RXX-YY.BIN files

NOTE:

WARNING:

the screen, execute “LOAD BIOS FILE TO BUFFER” and type BIOS file
name (RXX-YY.BIN) and file path. Program then automatically loads BIOS
file into memory buffer.

IMPORTANT:

ROM”.

WARNING:

The AFLASH.EXE and MSG.DAT are flash utility programs. The
RXX-YY.RN file has the BIOS checksum information. The RXX­YY.BIN is BIOS source code binary file and its file size should be
262,144 bytes (256K bytes).

Do not boot with any memory related driver such as

HIMEM.SYS, EMS.SYS ….

Verify the BIOS checksum value shown on screen is same

to the one in RXX-YY.RN file.

Do not turn off the system power while the BIOS is
programming, or the flash ROM will be destroyed. If a BIOS
flash upgrade cannot be done successfully, you can replace a
new BIOS FRU. See “Parts Catalog” on page 7-2.

General Information 1-17

BIOS Setup Utility

The Setup Utility lets you review and change important information about the
computer and its hardware.

Working with the Setup Menus

Starting the Setup Utility

Follow these steps to enter Setup when the computer is off:

1. Turn on your monitor.

2. Turn on the system unit.

3. When you see the IBM logo and the line message “Press F1 to enter
Setup”, press F1 to enter Setup and display the main menu.

If you have previously set a power-on password, you are prompted to type in
the password after you press the F1 key. See the section “Power-On
Password” on page 1-15 for information on setting, changing, or removing the
password

See the Configuration/Setup Utility main menu below.

1-18

The following table lists specific keys on the keyboard that will help you move
through the Setup menus:

Keys Function

Down- or up­arrow key

Left- or right­arrow key

PgUp Press this key to move from a menu to the

PgDn Press this key to move from a menu to the

F1 Press this key if you want help for a selected

Esc After viewing or making changes to the settings

Enter Press this key to choose a highlighted option

Use these arrow keys to highlight an option on
the menu. (Press the Enter key to choose the
option.)

Use these arrow keys to make a selection and
change an option’s setting. On some menus,
you can use these keys to move from one field
to another.

menu immediately preceding it. This key works
only in options with multiple menus.

menu immediately following it. This key works
only in options with multiple menus.

menu option.

on a menu, press this key to exit the menu.

from a menu.

Changing Parameter Settings

In the Setup menus, the configuration information that you can change are
enclosed in brackets like these: [ ]. You cannot change any information that is
not enclosed in brackets. Use the up- or down-arrow keys to highlight options
then press Enter to display a menu. When changing the setting of a particular
parameter, highlight the setting then use the left- or right-arrow key to change
the setting.

Loading the Default Settings

When you purchase an Aptiva computer, it is already configured for use. The
original configuration settings, also called factory or default settings, are
stored in the CMOS. Setup includes an option Load Default Settings that lets
you reload the original configuration at any time.

If you have made changes in Setup but would like to restore the default
settings, follow these steps:

General Information 1-19

1. From the main menu, highlight the option Load Default Settings then press
Enter. A dialog box appears confirming if you want to load the default
settings.

2. Use the left-arrow key to select Yes, then press Enter.

3. Press Esc to exit Setup.
A dialog box appears confirming if you want to save the CMOS settings (in
this case, the default settings that you reloaded).

4. Use the left-arrow key to select Yes, then press Enter to save the changes
in CMOS.

You must load the Setup default settings In the following instances:

−

When you replace the system battery

−

When you customize your system configuration settings and some
resource assignments conflict causing the computer to hang

Aborting Setti ng Changes

There may be times when you have made changes in the Setup parameter
settings but decided to discard the changes. The option Abort Settings
Change allows you to do this without exiting Setup.

To abort the changes that you have made, follow these steps:

1. Return to the Setup main menu.

2. Highlight the Abort Settings Change option then press Enter.

BIOS then clear up all the changes that you made and reverts the parameters
to their saved settings. The saved settings are those that you see when you
entered Setup, before you made the changes.

Exiting Setup

When you complete your changes or finish viewing information, return to the
main menu. From this location, you can exit Setup and save your changes or
exit without saving your changes.

Follow these steps to exit Setup:

1. From the main menu, press the Esc key.

2. The Exit Setup dialog box appears. If you have made changes in the
parameter settings, it will contain an option for saving your changes.

- If you would like to save your changes, press the left-arrow key to select

the option Yes then press Enter to save your changes and exit Setup.

1-20

- If you do not want to save your changes, press the right-arrow key to

select the option No then press Enter, to exit Setup without saving.

Viewing System Information and Product Data

To view general hardware information about your computer, select the System
Information option from the Setup main menu. The items displayed in the
System Information menu are not configurable.

Setup automatically updates this menu when you do either of the following:

−

Add or change hardware on your computer

−

Make changes to other menus in Setup and save those changes

To view the computer information such as the model number, serial number,
and BIOS version and date, select the Product Data option from the Setup
main menu. Like in the System Information menu, the items displayed are not
configurable.

Disk Drives

If you install a new diskette, hard disk, or CD-ROM drive, BIOS auto-detects
the presence of these devices. Enter Setup to identify or verify the type of
drive installed in the computer.

If you want to change any drive setting, select Disk Drives from the main
menu. The Disk Drives menu appears showing the diskette drive and IDE
drive parameters.

Diskette Drive (A or B)

These options display the size and storage capacity of the currently installed
diskette drive or drives. Empty drive bays are indicated with a “None” setting.
Your Aptiva computer comes with a diskette drive A:. If you add an additional
diskette drive, it will be designated as diskette drive B.

IDE Hard Disk and CD-ROM Drives

The Disk Drives menu includes four IDE drive items that allow you to
configure the hard disk drives and the CD-ROM drive. Selecting any one of
these items displays a submenu with details on a particular IDE drive.

The IDE drive items are identified as follows:

General Information 1-21

−

IDE Primary Channel Master

system board and set as the master device. This is the hard disk
that comes preinstalled with your computer.

−

IDE Primary Channel Slave

connector 1 on the system board and set as the slave device.

−

IDE Secondary Channel Master

connector 2 on the system board and set as the master device.

−

IDE Secondary Channel Slave

connector 2 on the system board and set as the slave device.
Normally, a preinstalled CD-ROM drive is connected here.

NOTE: The CD-ROM drive information does not appear among these

options. Click on the System Information option in the Setup main
menu to verify the presence of a CD-ROM drive.

The following section contains the details on the parameters under each IDE
drive submenu.

Type

This item specifies the number of cylinders, heads, and sectors, and the size
of a particular IDE drive. If no information appears opposite the parameters,
there is no drive installed in that channel.

Hard Disk Block Mode

This function enhances disk performance depending on the hard disk in use.
BIOS automatically detects if your hard disk supports this feature.

Setting to Auto allows data transfer in blocks (multiple sectors) to increase the
data transfer rate. If your system does not boot after setting this parameter to
Auto, change the setting to Disabled. The default setting for this parameter is
Auto.

is attached to IDE connector 1 on the

(if installed) is attached to IDE

(if installed) is attached to IDE

(if installed) is attached to IDE

Advanced PIO Mode

The advanced PIO mode feature improves system performance by allowing
the use of faster hard disk drives. If your hard disk supports this feature, you
may set this parameter to Auto (default), Mode 0, Mode 1, Mode 2, Mode 3, or
Mode 4 depending on the hard disk requirements. See the documentation that
came with the hard disk.

If your hard disk does not support this function, set this parameter to Disabled.

Hard Disk Size > 504MB

This enhanced IDE feature works only under DOS and Windows
environments. If set to Auto, which is the default, BIOS allows you to use a

1-22

hard disk with a capacity of more than 504MB. This is made possible through
the Logical block address (LBA) mode translation. You may be required to set
this parameter to Disabled if you use other operating systems.

To prevent data loss, set this parameter to Auto if you are using a hard disk
with more than 504MB capacity that was previously configured through the
LBA mode. If you use a hard disk configured through the user-specific
cylinder-head-sector (CHS) mode, set this parameter to Disabled.

Hard Disk 32-bit Access

Setting this parameter to Enabled improves system performance by allowing
the use of the 32-bit hard disk access. This enhanced IDE feature only works
under DOS, Windows 3.x, Windows 95, and Novell NetWare. If your software
does not support this function, set this parameter to Disabled. The default
setting is Enabled.

CD-ROM Drive DMA Mode

This parameter allows you enable or disable the CD-ROM drive DMA mode.
The default setting is Disabled.

Devices and I/O Ports

From the Setup main menu, select the Devices and I/O Ports option to view or
change port configuration settings. The Devices and I/O Ports menu appears.
This menu lets you configure serial and parallel ports.

Also included in this menu are items for enabling or disabling the onboard
controller chipsets.

Onboard Communication Ports

Serial Port

Your computer comes with a 9-pin serial port. This parameter displays the
current address for serial port. The default setting Base Address is 2F8. The
default IRQ is 3.

If you install a modem or a serial port adapter card, use this parameter to
make any changes to the serial port address which may be needed to avoid
conflicts with additional hardware. If you change the serial port address, you
might also need to make changes in the software that uses the serial port. For
instructions on changing your software, see the user’s guide or online
documentation that came with the software.

General Information 1-23

Parallel Port

Your computer comes with one parallel port. This parameter shows the default
Enabled to activate the parallel port. The default base address is 378h. The
default IRQ is 7.

If you install an adapter card with a parallel port, use this menu to make sure
that each parallel port has a different address. If you change parallel port
addresses in this menu, you might also need to make changes in the software
that uses the parallel port. For instructions on changing your software, see the
user’s guide or online information that came with the software.

Operation mode As long as the parallel port setting is not disabled, this item
allows you to choose an operation mode for the parallel port. You can select
either the Standard mode or one of the extended modes (Bidirectional, EPP,
or ECP) for a parallel port operation mode. The extended modes increase the
efficiency of your parallel port; however, these modes use recent technology
and are only supported by newer hardware (such as some printer models).
The available modes are:

−

Standard.

speed, and is the default setting.

−

Bidirectional.

normal speed.

−

EPP.

a maximum speed.

−

ECP.

bidirectional mode and at a speed higher than the maximum data
transfer rate.

This mode allows for one-way operation at a normal

This mode allows for a two-way operation at a

This mode allows for a bidirectional parallel port operation at

This mode allows the parallel port to operate in a

NOTE: If you change the mode of a parallel port on an adapter card, you

might need to make changes to the port’s adapter card and its
software. See the user’s guide or online documentation that came
with the adapter card.

ECP DMA Channel This item becomes active only if you select ECP as the
operation mode. It allows you to select DMA channel 1 or DMA channel 3
depending on the available system resource.

Onboard Floppy Disk Controller

This parameter allows you to enable or disable to onboard floppy disk
controller chipset. When set to Enabled, the controller enables the diskette
drive on your computer. When set to Disabled, the controller deactivates the

1-24

drive but simultaneously frees IRQ 6 which is normally assigned to the
diskette drive. You may then assign IRQ 6 to another device.

Onboard IDE Primary Channel

This parameter allows you to enable or disable the onboard IDE primary
channel controller. Setting this parameter to Enabled lets you use the primary
IDE connector (IDE 1) to connect up to two IDE drives. Setting to Disabled
deactivates IDE 1 but frees IRQ 14 for the use of other devices. The default
setting is Enabled.

Onboard IDE Secondary Channel

This parameter allows you to enable or disable the onboard IDE secondary
channel controller. Setting this parameter to Enabled lets you use the
secondary IDE connector (IDE 2) to connect up to two IDE drives. Setting to
Disabled deactivates IDE 2 but frees IRQ 15 for the use of other devices. The
default setting is Enabled.

Onboard PS/2 Mouse (IRQ12)

This parameter enables or disables the onboard PS/2 mouse. When set to
Enabled, it allows you to use the onboard PS/2 mouse. When set to Disabled,
it deactivates the mouse and frees IRQ 12 for the use of other devices.

Onboard USB

This parameter allows you to enable or disable the universal serial bus (USB)
controller. The default setting is Enabled.

USB Legacy Mode

mode. This item turns gray and non-configurable when the Onboard USB
parameter is disabled. The default setting is Disabled.

This parameter enables or disables the USB legacy

Onboard Audio Chip

This parameter enables or disables the onboard audio controller chipset. This
item does not appear in the menu if there is no physical audio chipset on the
system board. The default setting is Enabled.

Power Management

The system power management feature allows you to reduce power
consumption.

General Information 1-25

Power Management Mode

When the Power Management Mode parameter is set to Enabled, you can
configure the different power saving timers to your desired settings. Setting
this parameter to Disabled deactivates the power management feature and all
the timers. The default setting is Enabled.

IDE hard disk standby timer

standby mode after inactivity of 1 to 15 minutes, depending on your setting.
When you access the hard disk again, allow 3 to 5 seconds (depending on the
hard disk) for the system to recover and return to normal speed. Set this
parameter to Off if your hard disk does not support this function. The default
setting is Off.

System sleep timer

minutes) before the system enters the sleep state. Use the arrow keys to
select a setting. You can turn this timer to Off if you prefer. The default setting
is 60 minutes.

−

Stop CPU clock in sleep state

internal clock stops, along with other internal devices, when the
computer enters the sleep state. When set to No, the system
internal clock continues to run when the system is in the sleep
state. This item turns gray and is non-configurable when the
System Sleep Timer is off. The default setting is Yes.

Power Switch< 4 sec.

When set to Suspend, this parameter adds the suspend function to the
system power button on the front panel. The suspend function allows you to
put the system into suspend mode by pressing the power button for less than
four seconds while the system is on. When this parameter is set to Power off,
the power button simply turns the system power on or off. This parameter is
set to Power off by default.

This timer allows you to set the period of inactivity (in

This parameter allows the hard disk to enter

When set to Yes, the system

Modem Wake-Up on Ring

This parameter allows you to enable or disable the Modem Wake-Up on Ring
feature. When enabled and if the computer is in suspend, an incoming call
automatically resumes normal power on mode. When disabled, the system
does not return to the “normal on” state even if there is an incoming modem
access. The default setting is Enabled.

NOTE:

1-26

Machine Type 2137 and 2138 both have modem ring-in wake-up
feature. 2138 doesn't need a modem ring-in wake-up cable because
the BIOS monitors modem IRQ signal.

Startup Options

From the Setup main menu, select Startup Options to view or change start-up
configuration settings. The Startup Options menu appears. This menu
identifies the start-up devices.

Fast POST Mode

When set to Enabled, which is the default, this parameter allows the system to
boot faster by skipping some power on self-test (POST) routines.

Silent Boot

This parameter enables or disables the silent boot function. When set to
Enabled, which is the default, BIOS is in graphical mode and displays the IBM
logo while booting. If an error occurs while booting, the system automatically
switches to text mode.

Even if your setting is Enabled, you may also switch to the text mode while
booting by pressing F9 after you see the message “Press <F1> to go to the
Setup Utility”.

When set to Disabled, BIOS is in the conventional text mode where you see
the system initialization details on the screen

Num Lock After Boot

This parameter displays whether the NumLock function on the keyboard turns
on automatically each time you turn your computer on. You can set this to
Enabled or Disabled. The default is Enabled.

Memory Test

When set to Enabled, this parameter allows the system to perform a RAM test
during the POST routine. When set to Disabled, the system detects only the
memory size and bypasses the test routine. The default setting is Disabled.

When the Fast POST Mode parameter is set to Auto, the Memory Test
parameter is disabled and becomes non-configurable.

System Boot Driv e

This parameter has four options:

−

Drive A Then C.

first. If there is a diskette in the drive, the system boots from drive
A. Otherwise, it boots from drive C. This is the default setting.

In this option, the system BIOS checks drive A

General Information 1-27

−

Drive C Then Drive A.

drive C first. If there is no hard disk drive, the system boots from
drive A.

−

Drive A Only.

A.

−

Drive C Only.

C.

This option directs BIOS to boot up system from drive

This option directs BIOS to boot up system from drive

In this option, the system BIOS checks

Boot from CD-ROM

When enabled, this parameter prompts BIOS to look first for a bootable CD in
the CD-ROM drive. If a bootable CD is present, the system boots from the CD­ROM. Otherwise, it boots from the drive specified in the System Boot Drive
parameter. The default setting is Enabled.

Date and Time

From the Setup main menu, select the Date and Time option to view or
change the system clock from the Date and Time menu. If you want to change
the system date, enter the date in the format shown on the screen as in the
following example:

Mon Nov 10, 1997

If you change the time, enter the time in 24-hour format (hours, minutes,
seconds). For example:

−

12 midnight is 00:00:00

−

12 noon is 12:00:00

−

1 p.m. is 13:00:00

When setting date and time, press the up- or down-arrow key to highlight a
field. Press the left- or right-arrow key to change the settings.

Advanced Options

From the Setup main menu, select the Advanced Options option to view or
change a variety of configuration settings. The Advanced Options menu
appears, with the following options:

−

Security Options

−

Memory/Cache Options

1-28

−

PnP/PCI Options

Each of these options opens an additional menu.

Security Options

The Security Options menu lets you change the settings of the following
parameters:

−

Power-on Password

−

Disk Drive Control

Power-on Password

Select this parameter and press the left- or right-arrow key to display the
Power-on Password window. In this window, you can set up a password to
restrict the use of your computer. You can also change or remove the
password.

If you set up a power-on password, you must type this password each time
you turn on your computer. If you do not key in the correct password, you
cannot use your computer. You must also type this password if you want to
enter Setup.

Setting a Power-On Password

1. Enter Setup.

2. From the Setup main menu, select Advanced Options, then Security
Options.

3. Highlight the Power-on Password parameter and press the left- or right­arrow key to display the Power-on Password window.

4. Type a password consisting of up to seven characters, then press Enter.

5. Retype the password then press Enter.

6. Press Enter again to confirm setting the password. Pressing Esc aborts
the password setting.

After pressing Enter, the Power-on Password window disappears. The
Power-on Password parameter automatically sets to Present.

7. Press Esc to return to Setup main menu.

8. Press Esc to exit Setup and reboot the system. Answer Yes when
prompted to save settings.

If you change your mind and decide not to change your password, just
answer No when prompted to save CMOS settings.

General Information 1-29

The next time you turn on the system, you will be prompted to enter your
power-on password. If you press F1 during POST to enter Setup, you must
key in the password as well.

If you were not able to set a password after performing the above procedure,
or should you encounter any error message when setting a password, open
the system unit and check the setting of jumper JP9 for 2137 or SW1(switch

1) for 2138. See "2137 System Board " on page 5-5 or "2138 System Board

Layout" on page 5-15 for details on jumper settings information.

Changing the Power-On Password

1. Enter Setup.

2. Key in your current password when prompted.

3. From the Setup main menu, select Advanced Options, then Security
Options.

4. Highlight the Power-on Password parameter and press the left- or right­arrow key twice to display the Power-on Password window.

5. Type in a new password then press Enter.

6. Retype the new password then press Enter.

7. Press Enter again to confirm changing the password.

8. Press Esc twice to return to the Setup main menu.

9. Press Esc to exit Setup and reboot the system. Answer Yes when
prompted to save CMOS settings.

If you change your mind and decide not to change your password, just
answer No when prompted to save CMOS settings.

Removing the Power-On Password

1. Enter Setup and select Advanced Options, then Security Options.

2. Press the left- or right-arrow key once to select None.

3. Press Esc to return to Setup main menu.

4. Press Esc to exit Setup and reboot the system. Answer Yes when
prompted to save CMOS settings.

Disk Drive Control

There are two items under this parameter: Diskette Drive and Hard Disk Drive.
These items allow you to write-protect the diskette and hard disk drives.

The settings include:

1-30

−

Write Protect All Sectors.

the diskette or hard disk drive.

−

Write Protect Boot Sector.

boot sector of the diskette or hard disk drive.

−

Normal.

This is the default setting.

Allows the diskette or hard disk drive to function normally.

Disables the write function all sectors of

Disables the write function only on the

Memory/Cache Options

The Memory/Cache Options menu allows you to configure the internal and
external caches. Enabling the cache parameters optimize system
performance.

Some older applications, however, may not run properly with the caches
enabled. Set the parameters to Disabled when you run these applications.
Disabling the caches will degrade system performance.

Internal Cache

This parameter enables or disables the internal cache memory. The default
setting is Enabled.

External Cache

This parameter enables or disables the external cache memory. The default
setting is Enabled.

Cache Scheme

This is fixed to the setting Write Back and is non-configurable.
The Write Back cache scheme allows updates in the cache but not in the

memory when there is a write instruction. The memory is only updated when
there is inconsistency between the cache and the memory.

Maximum Cacheable Size

cache memory size in the system.

Memory Parity Mode

and Correct (ECC) feature. Select ECC to enable BIOS to detect and correct
data errors. Select Disabled if you do not wish to use this feature. The
default setting is Disabled.

This item indicates the cache scheme of the external cache.

This parameter indicates the maximum supported

This parameter allows you to activate the Error Check

PnP/PCI Options

The parameters in the PnP/PCI Options menu allow you to set the IRQ
assignments for your PCI devices.

General Information 1-31

PCI IRQ Setting

This parameter allows for automatic or manual configuration of PCI devices. If
you use Plug and Play devices, you can keep the default setting Auto. The
system then automatically configures the Plug and Play devices. If you install
non-Plug and Play adapter cards, set this parameter to Manual. This allows
you to assign resources to non-Plug and Play cards first.

If you have to configure PCI resources manually, use the up- or down-arrow
key to move between fields and select the IRQ assignments using the left- or
right-arrow key.

PCI Slots These parameters allow you to specify the appropriate PCI
devices. You may assign IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11,
IRQ12, IRQ14, or IRQ15 if they have not been previously assigned to other
devices. Some IRQs are normally assigned to specific system devices. See
“System Interrupts” on page 1- 12 to make sure that the IRQ that you want to
use is free to avoid resource conflicts.

Bus mastering When set to Enabled, this option allows the PCI cycles to
bypass the CPU for faster operation. When set to Disabled, all PCI
transactions pass through the CPU. The default setting is Enabled.

PCI IRQ Sharing

When set to Yes, this parameter allows you to assign the same IRQ to more
than one PCI device installed in the system. When set to No, you must assign
different IRQs to the PCI devices. The default setting is Yes.

VGA Palette Snoop

The VGA palette snoop function allows the system to refresh all ISA and PCI
graphic adapters installed in the system. This is needed if you install an
additional graphics overlay card such as an MPEG or an advanced 3D
graphics adapter. If the image on your monitor has problems after installing
such an adapter, set this parameter to Enabled. Otherwise, leave it to the
default Disabled to achieve better performance.

Plug and Play OS

When this parameter is set to Yes, BIOS initializes only Plug and Play boot
devices, then the Plug and Play operating system takes care of the other
devices. When set to No, BIOS initializes all Plug and Play boot and non-boot
devices.

Set this parameter to Yes if you are using the Windows 95 operating system.
Set to No if you run any other operating system. The default setting is Yes.

1-32

Reset Resource Assignments

Set this parameter to Yes to avoid IRQ conflict when installing non-Plug and
Play cards.

Before you install non-Plug and Play cards, set this parameter to Yes, exit
Setup and turn off the computer. This clears all resource assignments and
allows BIOS to reassign resources to all installed Plug and Play devices the
next time the system boots. After clearing the resource data, the parameter
resets to the default setting No.

General Information 1-33

Specifications

Dimension (width x depth x height):

•

System unit:

−

195 mm (7.68 in.) x 455 mm (17.9 in.) x 428 mm (16.85 in.)

•

14” Monitor / 13.1” viewable image size:

−

352 mm (13.9 in.) x 378 mm (14.9 in.) x 356 mm (14.0 in.)

•

15” Monitor /13.6” viewable image size:

−

376 mm (14.8 in.) x 385 mm (15.2 in.) x 367 mm (14.4 in.)

•

15” Monitor / 13.7” viewable image size:

−

376 mm (14.8 in.) x 385 mm (15.2 in.) x 373 mm (14.7 in.)

•

17” Monitor / 15.7” viewable image size:

−

422 mm (16.6 in.) x 425 mm (16.7 in.) x 418 mm (16.5 in.)

Weight:

•

System unit:

−

12.7 kg (28 lb)

•

14” Monitor / 13.1” viewable image size:

−

11 kg (24.2 lb)

•

15” Monitor /13.6” viewable image size:

−

16 kg (35.2 lb)

•

15” Monitor /13.7” viewable image size:

−

12.5 kg (27.5 lb)

•

17” Monitor /15.7” viewable image size:

−

17.5 kg (38.5 lb)

Environment:

•

Temperature for system unit:

−

Power on: 10° to 35°C (50° to 95°F)

−

Power off: -10° to 60°C (14° to 140°F)

•

Temperature for 14”/15” (13.1”/13.6” viewable image size) monitor types:

−

Power on: 10° to 40°C (50° to 104°F)

−

Power off: -40° to 60°C (-40° to 140°F)

1-34

•

Temperature for 15”/17” (13.7”/15.7” viewable image size) monitor types:

−

Power on: 5° to 40°C (41° to 104°F)

−

Power off: -40° to 60°C (-40° to 140°F)

•

Humidity for system unit:

−

Power on: 20% to 80%

−

Power off: 20% to 80%

•

Humidity for monitor :

−

Power on: 20% to 90%

−

Power off: 10% to 95%

Power consumption:

•

System unit:

−

Maximum: 200 Watts

•

14”/15” (13.1”/13.6” viewable image size) monitor types:

−

Maximum: 90 Watts

•

15”/17” (13.7”/15.7” viewable image size) monitor types:

−

Maximum: 70 Watts

Electrical input:

•

Input voltage for system unit (Sine-wave input is required) :

−

Low Range: 90 Vac to 132 Vac

−

High Range: 180 Vac to 264 Vac

•

Input voltage for monitor (Sine-wave input is required) :

−

90 Vac to 264 Vac

General Information 1-35

Operating Requirements

All machines require two power input: one on the system unit and one on the
monitor display.

The system units come with a voltage selector switch, allowing selection of
voltage of either 110 Vac or 220 Vac. This switch must be in the 220 Vac
position when the machine is plugged into a 220 Vac electrical outlet.

The required power input for the monitor shipped with the system unit is auto­sensing type and does not require any voltage switch adjustment.

Special Tools

The following special tool is required to service this system when running
diagnostics program (PC-Doctor) to do serial and parallel ports testing:

•

Wrap plug, P/N 72X8546

1-36

Check Procedures

Check Procedures........................................................................................2-1

Introduction ....................................................................................................2-2

Start ...............................................................................................................2-3

Index of Symptoms, Messages, Error Codes, or Beeps................................2-8

Check Procedures .......................................................................................2-26

Factory-Installed Storage Devices .........................................................2-27

Factory-Installed Modem Card...............................................................2-30

Audio (Not Supported by Diagnostics Program)....................................2-32

CD-ROM Drive .......................................................................................2-34

Memory...................................................................................................2-35

Keyboard................................................................................................2-36

Mouse.....................................................................................................2-37

Power Supply.........................................................................................2-39

Monitor ...................................................................................................2-42

Undetermined Problems.........................................................................2-44

Copyright IBM Corp. 1998 2-1

Introduction

This chapter contains the check procedures used to diagnose the causes of
product failures. The diagnostic information consists of:

Start:

level symptoms, the check procedure directs you to more detailed procedures
to help resolve machine failures.

Index of Symptoms, Messages, Error Codes, or Beeps:

BIOS Error Messages, Codes, Beeps, and Error Symptoms list symptoms
along with their probable causes, and direct you to the applicable check
procedures to help resolve machine failures. These tables also list the field
replaceable units (FRUs) most likely to cause a particular problem.

Check Procedures:

Symptoms, Messages, Error Codes, or Beeps tables point you to a specific
check procedure, proceed to that section. If there are any notes or instructions
at the top of the page, read them before you begin with the procedure.
Carefully read each step of the check procedure and perform the steps as
instructed. If you do not remember the location of a specific part or test point,
or an adjustment or removal procedure, see the chapter that contains that
information. Always return to the check procedure after you do this. In some
cases, you are referred to other check procedures to detect the cause of the
failure.

This is the starting point for any diagnostic action. Based on high-

The tables for

When the Start check procedure or the Index of

2-2

Start

This is the entry point for all check procedures. The check procedures use
failure symptoms, Power-On Self Test (POST) error codes, or beeps to help
determine the defective field replaceable unit (FRU). Follow the suggested
check procedures or use the diagnostics diskette to determine the problem
FRU.

IMPORTANT:

This book comes with a diagnostic program diskette. This diskette should be
used ONLY with
Computers. Do not use this diskette on other models.

POST error codes and error messages are displayed on the screen after the
IBM logo. A beep will precede each error code or message. Please refer to
“Index of Symptoms, Messages, Error Codes, or Beeps” on page 2-8 for
additional help.

All voltages in the check procedures are positive unless otherwise indicated.
Use frame ground for all voltage checks unless otherwise specified.

NOTE:

The hard disk drive contains pre-loaded software. Refer to "Software
Recovery Procedure" on page 4-35 to reinstall the original software. Be sure
to reload the software on the primary hard disk drive (Drive C) when replacing
it.

IMPORTANT:

How to Diagnose Combined FRUs:

than one FRU, any of the FRUs might cause an error code. Before replacing

Replace FRUs ONLY when it is determined that the error is not
a result of software, loose contact, or dirty component surfaces. Any
FRU change should be verified by running a complete test
(“Diagnostics - All Tests” in PC-Doctor diagnostics program).

2137/2138 Service Level A (SL-A)

If the check procedures instruct you to replace an FRU and the error
message persists, an option adapter card might be causing the
failure. Remove all option adapter cards, one at a time, until the error
changes or the problem is no longer apparent. Replace the last
option adapter card removed.

The drives in the system you are servicing may have been
rearranged, or the drive startup sequence has changed. Be extremely
careful during write operations, such as copying, saving, or
formatting. Data or programs can be overwritten if you select an
incorrect drive.

software from the hard disk drive before you reload the
software.

Ask the customer to back up any additional

If an adapter or device consists of more

IBM Aptiva Personal

Check Procedures 2-3

the device or adapter, remove the FRUs one by one to see if the symptoms
change.

If a newly replaced FRU does not correct the problem: If you have
reached this point of the check procedures and were instructed to replace an
FRU but doing so did not correct the problem, reinstall the original FRU and
go through "Start" again.

If you want to print a copy of a BIOS Setup Utility screen to an attached
printer, press Print Screen key while the following screen is displayed.

PLEASE READ THE FOLLOWING:
Human Error is a cause for concern when applied to

check procedures. It exists in every first time set of
analysis procedures. It is therefore essential for
effective and time-efficient servicing that each stage of
every procedure be verified. (For example: When a
symptom is found, or when a symptom appears to have
been cured; the preceding steps should be repeated for
accuracy of analysis.)

001 - START

To begin, note the following:

−

Disable the setting of “Fast POST Mode” from BIOS Setup. See
“Fast POST Mode” on page 1-27.

−

To disable or reset the power-on password, see "Power-On
Password” on page 1-15.

2-4

−

Disconnect all external cables and devices including speakers and
microphone from the system unit, except for the keyboard, mouse,
and monitor.

−

Power off the system unit before moving it or when replacing FRUs.

−

Remove all adapter cards, except for the factory-installed modem
adapter card and any other IBM Aptiva factory-installed adapter
cards.

−

Disconnect all drives except:

•

3.5-in. diskette drive

•

Hard disk drive

•

IBM Aptiva factory-installed devices (such as a CD-ROM drive)

−

Ensure that all power cords and cables are connected properly.

−

Ensure that the monitor brightness and contrast controls are not
turned down.

−

Power on the system unit.

NOTE: Some monitors have a detachable system I/O signal cable between

the monitor and the system unit. In this case, check this signal cable
before replacing the unit. See "Monitor Port Signals" on page 5-28 for
pin identification.

−

Ensure correct monitor refresh rate. See "Refresh Rates and
Monitor Frequencies” on page 1-14.

−

Note any symptoms, messages, error codes, or beeps.

−

Make sure that there are no diskette or CD in the drives.

002 - DOES SYSTEM COMPLETE POST WITH ONE SHORT BEEP AND

DOES AN IBM LOGO SCREEN APPEAR? (YES, READ AHEAD.
NO, GO TO STEP 004.)

−

Insert diagnostics diskette in the diskette drive.

003 - DOES SYSTEM LOAD THE DIAGNOSTICS PROGRAM FROM THE

DISKETTE DRIVE? (YES, READ AHEAD. NO, GO TO STEP 004.)

−

Follow the instructions on the screen and select Utility from the
diagnostics program menu.

−

Select Tech Support Form from the menu, press F5 to execute,
then generate a system configuration report.

−

Compare the system configuration list with the actual devices
installed in system.

NOTE: If necessary, remove the machine cover and visually compare the

devices installed in system to those shown in the system
configuration report.

−

Go to step 006.

004 - DO ANY MESSAGES, ERROR CODES, OR SYMPTOMS APPEAR?

(YES, READ AHEAD. NO, GO TO STEP 005)

−

Go to “Index of Symptoms, Messages, Error Codes, or Beeps” on
page 2-8.

−

End.

005 -

Check Procedures 2-5

−

If the keyboard responds incorrectly, go to "Keyboard" on page 2-

36.

−

If monitor problems appear, such as jittering, shifting, or being out
of focus, go to "Monitor" on page 2-42.

006 - DOES THE SYSTEM CONFIGURATION REPORT CORRECTLY

IDENTIFY THE DEVICES INSTALLED IN SYSTEM? (YES, READ
AHEAD. NO, GO TO STEP 007.)

−

Select Diagnostics from the diagnostics program menu.

−

Select and execute All Tests.

−

Go to step 008.

007 -

The system configuration report shows only those devices supported by the
diagnostics diskette.

If a device is missing from the list and is not factory installed, refer to the
service manual provided for that device. (Refer to the Appendix B,
"Model/Monitor Configurations and FRU Part Numbers" to determine the
factory-installed devices in the model you are servicing.)

008 - DOES THE DIAGNOSTICS FINISH WITHOUT ANY ERRORS? (YES,

READ AHEAD. NO, GO TO STEP 009.)

−

If the Diagnostics \ All Tests did not detect a failure but the
system still indicates a failure:

•

Check all adapter card jumper settings.

•

Check all adapter card switch settings.

•

Check all adapter card cables and connectors.

•

Make sure that all of the above are set correctly and show the

correct voltages and continuity. Replace any defective cables or
adapter cards. See "Power Supply Cable Connector
Specifications" on page 5-18 and "2137 System Board " on page 5­5 or "2138 System Board Layout" on page 5-15.

•

Run the Diagnostics \ All Tests again.

•

If an error or other symptom is displayed, go to “Index of

Symptoms, Messages, Error Codes, or Beeps” on page 2-8.

•

If no error can be detected or the symptom is intermittent, go to

“Undetermined Problems” on page 2-44.

−

End

2-6

009 -

−

If the last test stops and you cannot continue, first make sure all
switches, power connectors, cables, and jumpers are set correctly
and show the correct voltages and continuity.

−

Take note of any messages, error codes, beeps, or new symptoms.
Go to "Index of Symptoms, Messages, Error Codes, or Beeps" on
page 2-8.

−

If there is no error symptom or the error symptom is intermittent, go
to “Undetermined Problems” on page 2-44.

Check Procedures 2-7

Index of Symptoms, Messages, Error Codes, or Beeps

How to Use Error Messages:

combinations that occur to diagnose failures. If more than one failure occurs,
begin the diagnosis from the first failure that appeared. The cause of the first
failure can result to false messages, error codes, or beeps. If you did not
receive any messages, error codes, or beeps, see if the symptom is listed in
Table 2-2, "Error Symptoms List” on page 2-17.

ATTENTION:

POST:

On Self Test (POST). The machine performs the POST each time it is
powered on. Use this information throughout the diagnostic procedures. The
POST is a series of system checks and initializations that verify the correct
operation of the base system.

After a successful POST, the system attempts to load operating system. The
system can be customized for different startup (boot) methods by the BIOS
Setup Utility. See “Startup Options” on page 1-27.

The system's default startup sequence automatically looks for the operating
system files in the hard disk if these files are not found in the diskette.

NOTE:

Table 2-1 lists BIOS error codes, messages, and beeps to their possible
causes, table 2-2 lists error symptoms and their possible causes. The most
likely cause is listed first. Make sure you complete all items in the cause or
"Action/FRU" column. When servicing a system, always begin with "

When you have deemed it necessary to replace an FRU, and
did so, you must run a total system check to ensure that no other
activity has been affected by the change. This system check can be
done through the diagnostics program (Select
select and execute

Some diagnostic aids are resident in the machine, such as the Power-

Remember that POST does not test all areas, but only those that
allow the system to operate well enough to run the diagnostics
program.

Use the messages, error codes, and beeps

Diagnostics

All Tests

from PC-Doctor).

, then

2-8

Start" on page 2-3.
If you are unable to correct the problem using these two index tables, go to

“Undetermined Problems” on page 2-44.

NOTES:

1. If an error message and incorrect audio response occur, diagnose the
error message first.

2. If you cannot run the diagnostics program tests but did receive a POST
error code, diagnose the POST error message.

3. If you did not receive any error message, look for a description of your
error symptoms in “Error Symptoms List” in table 2-2.

4. Check all power supply voltages, switch, and jumper settings before you
replace the system board. Also check the power supply voltages if you
have a “system no-power” condition. (See "Power Supply Cable Connector
Specifications" on page 5-18, "2137 System Board " on page 5-5
and"2138 System Board Layout" on page 5-15.)

5. If you are unable to correct the problem by using the “BIOS Error Codes,
Messages, And Beeps List” table and “Error Symptoms List” table, go to
“Undetermined Problems” on page 2-44.

Table 2- 1 BIOS Error Codes, Messages, and Beeps List

BIOS Error Codes,

Action/FRU

Messages, beeps
NOTE: To diagnose a problem, first find the BIOS error messages, codes,

or beeps in left column. If directed to a check procedure, replace the FRU
indicated in the check procedure. If no check procedure is indicated, the
first Action/FRU listed in right column is the most likely cause.

POST Error Codes and Messages

006

Equipment Configuration
Error

Ensure the equipment (diskette drive, hard
disk drive, keyboard, mouse, etc. ) are
connected properly and are set correctly in
BIOS Setup.

System board.

Check Procedures 2-9

Table 2- 1 BIOS Error Codes, Messages, and Beeps List

BIOS Error Codes,

Action/FRU

Messages, beeps
NOTE: To diagnose a problem, first find the BIOS error messages, codes,

or beeps in left column. If directed to a check procedure, replace the FRU
indicated in the check procedure. If no check procedure is indicated, the
first Action/FRU listed in right column is the most likely cause.

010

Memory Error at
MMMM:SSSS:OOOOh
(R:xxxxh, W:xxxxh)

Insert the memory modules in the DIMM
sockets properly, then reboot the system.

Memory module. See the “Step 005” of
“Memory” on page 2-35 to replace memory
module.

System board.

020

PS/2 Keyboard Interface
Error

Plug the keyboard connector properly, then
reboot the system.

Keyboard.
System board.

021

PS/2 Keyboard Error or
Keyboard Not Connected

Check if the keyboard and mouse cables are
connected to their respective connectors.
Make sure that they are not interchanged.

Plug the keyboard connector properly, then
reboot the system.

Keyboard.
System board.

030

PS/2 Pointing Device Error

Check if the keyboard and mouse cables are
connected to their respective connectors.
Make sure that they are not interchanged.

Plug the mouse connector properly, then
reboot the system.

PS/2 mouse.
System board.

031

PS/2 Pointing Device
Interface Error

Check if the keyboard and mouse cables are
connected to their respective connectors.
Make sure that they are not interchanged.

PS/2 mouse.
System board.

2-10

Table 2- 1 BIOS Error Codes, Messages, and Beeps List

BIOS Error Codes,

Action/FRU

Messages, beeps
NOTE: To diagnose a problem, first find the BIOS error messages, codes,

or beeps in left column. If directed to a check procedure, replace the FRU
indicated in the check procedure. If no check procedure is indicated, the
first Action/FRU listed in right column is the most likely cause.

040

Floppy Disk Controller Error

Ensure the diskette drive configuration
setting in BIOS Setup is correct.

Diskette drive cable/connection.
Diskette drive.
System board.

041

Floppy Drive A Error

Ensure that the diskette drive A configuration
setting in BIOS Setup is correct.

Diskette drive power.
Diskette drive cable/connection.
Diskette drive A.

048

Floppy Drive(s) Write
Protected

050

IDE Primary Channel
Master Drive Error

051

IDE Primary Channel Slave
Drive Error

Ensure that the diskette drive is not set to
[Write protect] in the Security Options in
BIOS Setup.

Ensure the IDE Primary Channel Master
(Slave) is set to [Auto] in BIOS Setup.

Check hard disk jumper. See “3.5-In. Hard
Disk Drive Jumper Locations” on page 5-21
or "5.25-In. Hard Disk Drive Jumper
Location" on page 5-24.

Hard disk drive power.
Hard disk drive cable/connection.
Hard disk drive.

Check Procedures 2-11

Table 2- 1 BIOS Error Codes, Messages, and Beeps List

BIOS Error Codes,

Action/FRU

Messages, beeps
NOTE: To diagnose a problem, first find the BIOS error messages, codes,

or beeps in left column. If directed to a check procedure, replace the FRU
indicated in the check procedure. If no check procedure is indicated, the
first Action/FRU listed in right column is the most likely cause.

052

IDE Secondary Channel
Master Drive Error

053

IDE Secondary Channel
Slave Drive Error

Ensure the IDE Secondary Channel Master
(Slave) is set to [Auto] in BIOS Setup.

Check hard disk jumper. See “3.5-In. Hard
Disk Drive Jumper Locations” on page 5-21
or "5.25-In. Hard Disk Drive Jumper
Location" on page 5-24.

Hard disk drive power.
Hard disk drive cable/connection.
Hard disk drive.

055

Hard Disk Drive(s) Write
Protected

Ensure that the hard disk drive is not set to
[Write Protected] in the Security Options in
BIOS Setup.

Hard disk drive cable/connection.
Hard disk drive.

061

CPU Clock Mismatch

070

Real Time Clock Error

Enter BIOS Setup and load the default
settings.

Enter BIOS Setup and load the default
settings. RTC battery. See “System Backup
Battery” on page 4-26.

System board.

071

CMOS Battery Bad

Enter BIOS Setup and load the default
settings.

RTC battery. See “System Backup Battery”
on page 4-26.

System board.

072

CMOS Checksum Error

Enter BIOS Setup and load the default
settings.

RTC battery. See “System Backup Battery”
on page 4-26.

System board.

2-12

Table 2- 1 BIOS Error Codes, Messages, and Beeps List

BIOS Error Codes,

Action/FRU

Messages, beeps
NOTE: To diagnose a problem, first find the BIOS error messages, codes,

or beeps in left column. If directed to a check procedure, replace the FRU
indicated in the check procedure. If no check procedure is indicated, the
first Action/FRU listed in right column is the most likely cause.

102

I/O Parity Error

103

Press <Esc> to turn off NMI
or other key to reboot

ISA adapter card
System board
Press Esc to turn off NMI and proceed to

reboot system or press any key to reboot
system.

Insert the memory modules in the DIMM
sockets properly, then reboot the system.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

104

Insert system diskette and
press <Enter> to reboot

Ensure that the System Boot Drive parameter
in the Startup Options of BIOS Setup is not
set to [Drive A only].

Insert a system diskette into diskette drive
and reboot system.

Ensure the diskette drive configuration
setting in BIOS Setup is correct.

Hard disk drive power.
Diskette drive.
System board.

120

I/O Resource Conflict(s)

Enter BIOS Setup and set the Reset
Resource Assignments parameter to Yes,
then reboot the system.

121

Memory Resource
Conflict(s)

122

IRQ Setting Error

Enter BIOS Setup and set the Reset
Resource Assignments parameter to Yes,
then reboot the system.

Enter BIOS Setup and set the Reset
Resource Assignments parameter to Yes,
then reboot the system.

123

Expansion ROM Allocation
Failed

Enter BIOS Setup and set the Reset
Resource Assignments parameter to Yes,
then reboot the system.

Check Procedures 2-13

Table 2- 1 BIOS Error Codes, Messages, and Beeps List

BIOS Error Codes,

Action/FRU

Messages, beeps
NOTE: To diagnose a problem, first find the BIOS error messages, codes,

or beeps in left column. If directed to a check procedure, replace the FRU
indicated in the check procedure. If no check procedure is indicated, the
first Action/FRU listed in right column is the most likely cause.

180

Onboard Serial Port IRQ
Conflict(s)

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

182

Onboard Parallel Port IRQ
Conflict(s)

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

183

Onboard Floppy Drive IRQ
Conflict(s)

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

184

Onboard Pointing Device
IRQ Conflict(s)

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

185

Onboard IDE Secondary
Channel IRQ Conflict(s)

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

186

Onboard ECP Parallel Port
DMA Conflict(s)

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

187

Onboard Floppy Drive DMA
Conflict(s)

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

2-14

Table 2- 1 BIOS Error Codes, Messages, and Beeps List

BIOS Error Codes,

Action/FRU

Messages, beeps
NOTE: To diagnose a problem, first find the BIOS error messages, codes,

or beeps in left column. If directed to a check procedure, replace the FRU
indicated in the check procedure. If no check procedure is indicated, the
first Action/FRU listed in right column is the most likely cause.

188

Onboard Floppy Drive I/O
Address Conflict(s)

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

189

Onboard IDE Secondary
Channel I/O Address
Conflict(s)

190

Onboard Serial Port I/O
Address Conflict(s)

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

192

Onboard Parallel Port I/O
Address Conflict(s)

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

193

Onboard Serial Port
Conflict(s)

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

195

Onboard Parallel Port
Conflict(s)

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

196

Onboard IDE Primary
Channel IRQ Conflict(s)

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

Check Procedures 2-15

Table 2- 1 BIOS Error Codes, Messages, and Beeps List

BIOS Error Codes,

Action/FRU

Messages, beeps
NOTE: To diagnose a problem, first find the BIOS error messages, codes,

or beeps in left column. If directed to a check procedure, replace the FRU
indicated in the check procedure. If no check procedure is indicated, the
first Action/FRU listed in right column is the most likely cause.

197

Onboard IDE Primary
Channel I/O Address
Conflict(s)

198

PnP ISA Card(s) Disabled

Enter BIOS Setup and load the default
settings.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

Enter BIOS Setup and set the Reset
Resource Assignments parameter to Yes,
then reboot the system.

Remove all adapter cards that are NOT
factory-installed, then reboot the system.

Beeps

One long beep then two short

beeps

Two long beeps then three

short beeps

Restart the system.
System board.
Insert the memory modules in the DIMM

sockets properly, then reboot the system.
Memory module. See the “Step 005” of

“Memory” on page 2-35 to replace memory
module.

System board.

2-16

Table 2- 2 Error Symptoms List

Error Symptoms Action/FRU
NOTE: To diagnose a problem, first find the error symptom in the left

column. If directed to a check procedure, replace the FRU indicated in the
check procedure. If no check procedure is indicated, the first Action/FRU
listed in right column is the most likely cause.

Processor / Processor Fan

NOTE: Normally, the processor fan should be operative, and the processor

clock setting should be exactly set to match its speed requirement before
diagnosing any processor problems.

Processor fan does not run

but power supply fan runs.

Ensure that the system is not in power saving
mode. See “Power Management” on page 1-

25.
With the system power on, measure the

voltage of processor fan connector FN1 (see
"2137 System Board on page 5-5 or see
2138 System Board Layout on page 5-15).
Its reading should be +12Vdc.

Processor fan.
System board.

Processor test failed. Processor.

System board.

System Board and Memory

NOTE: Ensure that the memory modules are installed properly and the

contact leads are clean before diagnosing any system problems.
Memory test failed. “Memory” on page 2-35.

System board

Incorrect memory size shown

or repeated during POST.

System works but fails to

“DIMM Configurations" on page 5-28.
“Memory” on page 2-35

System board.
enter power saving mode
when the Power Saving
Mode is set to [Enabled],
and power saving timer set
in BIOS has elapsed.

Check Procedures 2-17

Table 2- 2 Error Symptoms List

Error Symptoms Action/FRU
NOTE: To diagnose a problem, first find the error symptom in the left

column. If directed to a check procedure, replace the FRU indicated in the
check procedure. If no check procedure is indicated, the first Action/FRU
listed in right column is the most likely cause.

System hangs before system

boot.

“Index of Symptoms, Messages, Error

Codes, or Beeps” on page 2-8.

“Undetermined Problems” on page 2-44.

System hangs after system

boot.

Execute a system test (“Diagnostics/All

Tests” in PC-Doctor diagnostics program)

and set it to stop at “Halt on Error” to see the

potential cause of the problem.

“Undetermined Problems” on page 2-44.

Blinking cursor only; system

does not work.

“Start” on page 2-3.

Diskette/hard disk drive connection/cables

Diskette/hard disk drives

“Undetermined Problems” on page 2-44.

System board

Diskette Drive

NOTE: Ensure that the diskette drive is configured correctly in BIOS Setup

and its read/write head is clean before diagnosing any diskette drive
problems.

Media and drive are

mismatched.

Ensure that the diskette drive is configured

correctly in the Disk Drives of BIOS Setup.

Diskette drive connection/cable

Diskette drive

System board

Diskette drive does not work. Ensure that the diskette drive is not set to

[None] in the Disk Drives of BIOS Setup.

Diskette drive power

Diskette drive connection/cable

Diskette drive

System board

2-18

Table 2- 2 Error Symptoms List

Error Symptoms Action/FRU
NOTE: To diagnose a problem, first find the error symptom in the left

column. If directed to a check procedure, replace the FRU indicated in the
check procedure. If no check procedure is indicated, the first Action/FRU
listed in right column is the most likely cause.

Diskette drive read/write error. Diskette.

Ensure that the diskette drive is not set to

[Write protect] in the Security Options of

BIOS Setup.

Diskette drive cable.

Diskette drive.

System board.

Diskette drive LED comes on

for more than 2 minutes
when reading data.

Diskette

Diskette drive connection/cable

Diskette drive

System board

Diskette drive LED fails to

light, and the drive is
unable to access for more
than 2 minutes.

Diskette

Diskette drive power

Diskette drive connection/cable

Diskette drive

System board

Diskette drive test failed. Diskette

Diskette drive

Diskette drive cable

System board

Hard Disk Drive

NOTE: Ensure hard disk drive is configured correctly in BIOS Setup,

cable/jumper are set correctly before diagnosing any hard disk drive
problems.

Hard disk drive test failed. Hard disk drive.

Hard disk drive cable.

System board.

Check Procedures 2-19

Table 2- 2 Error Symptoms List

Error Symptoms Action/FRU
NOTE: To diagnose a problem, first find the error symptom in the left

column. If directed to a check procedure, replace the FRU indicated in the
check procedure. If no check procedure is indicated, the first Action/FRU
listed in right column is the most likely cause.

Hard disk drive format error. Hard disk drive cable.

Hard disk drive.

System board.

Hard disk drive write error. Hard disk drive.
Hard disk drive LED fails to

light, but system operates
normally.

With the system power on, measure the

voltage of hard disk LED connector CN12(

see “2137 System Board "on page 5-5) or

CN21 (see "2138 System Board Layout" on

page 5-15.. Its reading should be:

CN12(for 2137) HDD Idle/Active

CN21(for 2138) HDD Idle/Active

pin-1 +5 Vdc / +5 Vdc

pin-2 +5 Vdc / 0 Vdc

pin-3 +5 Vdc / 0 Vdc

pin-4 +5 Vdc / +5 Vdc

Hard drive LED cable.

CD-ROM Drive

NOTE: Ensure CD-ROM drive is configured correctly in BIOS Setup,

cable/jumper are set correctly and its laser beam is clean before diagnosing
any CD-ROM drive problems.

CD-ROM drive LED flashes

for more than 30 seconds
before LED shutting off.

Software asks to reinstall

disc.

CD may have dirt or foreign material on it.

Check with a known good disc.

CD is not inserted properly.

CD is damaged.

Software displays a reading

CD error.

CD-ROM drive LED doesn’t

CD-ROM drive
come on but works
normally.

2-20

Table 2- 2 Error Symptoms List

Error Symptoms Action/FRU
NOTE: To diagnose a problem, first find the error symptom in the left

column. If directed to a check procedure, replace the FRU indicated in the
check procedure. If no check procedure is indicated, the first Action/FRU
listed in right column is the most likely cause.

CD-ROM drive cannot load or

eject when the system is
turned on and its eject
button is pressed and held.

“CD-ROM Emergency-exit <option 1>” on

page 5-25 or CD-ROM Emergency-exit

Option <2> page 5-26.

CD-ROM drive power.

"CD-ROM Drive" on page 2-34.

CD-ROM drive

CD-ROM drive does not read

and there are no error
codes or messages are
displayed.

CD may have dirt or foreign material on it.

Check with a known good disc.

Ensure that the CD-ROM driver is installed

properly.

CD-ROM drive.

CD-ROM drive can play audio

CD but no sound output.

Ensure that the headphone jack of the CD-

ROM has an output, then check if the audio

cable from CD-ROM drive to system board

CN6 (see "2137 System Board "on page 5-5)

or CN15 (see "2138 System Board Layout"

on page 5-15 is connected properly.

Turn up the voice.

Speaker power/connection/cable.

CD-ROM drive.

Real-Time Clock

Real-time clock is inaccurate. Ensure that the information in the Date and

Time of BIOS Setup is set correctly.

RTC battery. See “System Backup Battery”

on page 4-26.

System board

Audio

Audio software program

Speaker power/connection/cable.
invokes but no sound
comes from speakers.

Check Procedures 2-21

Table 2- 2 Error Symptoms List

Error Symptoms Action/FRU
NOTE: To diagnose a problem, first find the error symptom in the left

column. If directed to a check procedure, replace the FRU indicated in the
check procedure. If no check procedure is indicated, the first Action/FRU
listed in right column is the most likely cause.

Modem

Data/fax modem software

program invokes but cannot

“Factory-Installed Modem Card” on page 2-

30.

receive/send data/fax

Fax/voice modem software

program invokes but has no
sound output. (Data files
are received normally; voice
from modem cannot be
produced, but system
sound feature works
normally.)

Modem ring cannot wake up

system from suspend
mode.

Ensure that the modem voice-in/speak-out

cable from modem adapter card to system

board CN2 (see “2137 System Board "on

page 5-5) or CN13 (see "2138 System Board

Layout" on page 5-15) is connected properly.

“Factory-Installed Modem Card” on page 2-

30.

Ensure that the “Modem Wake-Up on Ring”

in BIOS Setup is set to [Enabled].

Ensure that the modem ring-in cable from the

modem adapter card to system board CN9 (

see “2137 System Board "on page 5-5) or

CN17 (see "2138 System Board Layout" on

page 5-15) is connected properly.

Video and Monitor

Video memory test failed.

System board

Video adapter failed.
Display problem:

- Incorrect colors

- No high intensity

- Missing, broken, or

Monitor signal connection/cable.

Monitor

System board
incorrect characters

- Blank monitor(dark)

- Blank monitor(bright)

- Distorted image

- Unreadable monitor

- Other monitor problems

2-22

Table 2- 2 Error Symptoms List

Error Symptoms Action/FRU
NOTE: To diagnose a problem, first find the error symptom in the left

column. If directed to a check procedure, replace the FRU indicated in the
check procedure. If no check procedure is indicated, the first Action/FRU
listed in right column is the most likely cause.

Display changing colors. Monitor signal connection/cable

Monitor

System board

Display problem not listed

above (including blank or
illegible monitor).

"Monitor" on page 2-42.

System board

Parallel/Serial Ports

NOTE: Execute “Load BIOS Default Settings” in BIOS Setup to confirm

ports’ presence before diagnosing any parallel/serial ports problems.
Serial or parallel port loop-

back test failed.

Make sure that the LPT# or COM# you test is

the same as what you set in BIOS Setup.
See “Serial Port Addresses” on page 1-13
and “Parallel Port Addresses” on page 1-

14.
Loop-back.
System board.

Printing failed. Ensure that the printer driver is properly

installed.
Refer to the service manual for the printer.
Printer.
Printer cable.
System board.

Printer problems. Refer to the service manual for the printer.

Check Procedures 2-23

Table 2- 2 Error Symptoms List

Error Symptoms Action/FRU
NOTE: To diagnose a problem, first find the error symptom in the left

column. If directed to a check procedure, replace the FRU indicated in the
check procedure. If no check procedure is indicated, the first Action/FRU
listed in right column is the most likely cause.

Joystick

Game port does not respond

or does not work.

Connect a joystick to the game port, then
execute “Interactive Test/Joystick” test in PC­Doctor diagnostics program.

System board.

Diagnostic Program

Diagnostics programs cannot

be executed.

Reboot the system from the diagnostics
diskette.

Diagnostics diskette.
Memory module.
System board.

Missing diagnostics files(s). Diagnostics diskette.

Keyboard

Some or all keys on keyboard

“Keyboard “on page 2-36.

do not work.

Pressing power switch cannot

turn off system.. (Only
unplug power cord from
electrical outlet can turn off
system.)

2-24

Power Supply

See ”Power Switch< 4 sec.” on page 1-26.
Power switch cable assembly
"Power Supply" on page 2-39.
System board

Table 2- 2 Error Symptoms List

Error Symptoms Action/FRU
NOTE: To diagnose a problem, first find the error symptom in the left

column. If directed to a check procedure, replace the FRU indicated in the
check procedure. If no check procedure is indicated, the first Action/FRU
listed in right column is the most likely cause.

Executing software shutdown

System board.

from Windows95 Start
menu cannot turn off
system. (Only pressing
power switch can force
system to turn off).

No system power, or power

supply fan is not running.

Ensure that a 3-wire standby power cable
from power supply to system board CN15 is
connected properly. See “2137 System
Board "on page 5-5 or "2138 System Board
Layout" on page 5-15)

"Power Supply" on page 2-39.
System board.

Other Problems

Any other problems. “Undetermined Problems” on page 2-44.

Check Procedures 2-25

Check Procedures

Failing Parts or Assemblies:

a problem to one part or assembly. The last step of the specific check
procedure you are using indicates that a part or assembly is failing. You
should inspect the part or assembly before you decide to replace it. It might be
loose, dirty, or in need of a small repair. The check procedures might lead you
to two, or even three, possible failing parts or assemblies. The parts that might
be failing are listed in order of the most probable failure. Also, the FRU parts
are defined as replaced units and are not repaired in the field.

Measuring Voltages:

voltages on cable plugs and electronic board connectors. If you are asked to
measure voltage at several places on a plug or connector, a chart next to or
near the instruction indicates the number of the plug or connector, the pin
numbers you should measure, the signal name, and the correct voltage for the
condition you are measuring. Measure the voltage only at the pins listed in the
chart. Remember to set the meter on the correct scale and to put the meter
leads in the correct position for the voltage you are asked to measure.

NOTE:

Use frame ground as the ground reference. Attach the black (ground)
lead of meter to frame ground, except where specified otherwise.

Some check procedure steps instruct you to measure

The check procedures generally help you trace

2-26

Factory-Installed Storage Devices

Use this check procedure to test any factory-installed drives.

ATTENTION:

NOTE:

001 - START

002 - DO ANY POST MESSAGES, ERROR CODES, BEEPS, OR

003 -

The customer may have customized settings in the Setup Utility
(other than default settings) on the computer you are servicing.
Running the Setup Utility might alter those settings. Take note of the
current settings and verify that the customer settings are in place
when service is complete.

If you cannot access the hard disk drive or load a diskette from Drive

A or load a CD from the CD-ROM drive, make sure that the BIOS
Setup Utility has the startup sequence set with diskette, CD-ROM,
and hard disk drives.

−

Insert the diagnostics diskette into the diskette drive.

−

Power-off then power-on the system unit.

SYMPTOMS APPEAR? (YES, READ AHEAD. NO, GO TO STEP

003)

−

Go to “Index of Symptoms, Messages, Error Codes, or Beeps” on
page 2-8.

−

End.

−

−

Utility

Select
Select and execute

generate a system configuration report.

from the menu.

Tech Support Form

from the menu to

NOTE:

004 - IF

−

Compare the system configuration list with the actual devices
installed in system.

If necessary, remove the cover and visually compare the devices
installed in the system unit to those shown in the Tech Support
Form.

THE NUMBER OF DISKETTE, HARD DISK, OR CD-ROM DRIVE
NOT CORRECT, READ AHEAD; OR GO TO STEP 005.

IS

−

Check the cable installation of all disk drives.

Check Procedures 2-27

• Diskette drive should be connected to the system board connector
CN16 (see “2137 System Board "on page 5-5) or CN19 (see "2138
System Board Layout" on page 5-15).

• IDE Primary Channel Master and Slave Drives in BIOS Setup
should be connected to the system board connector CN13(see
“2137 System Board "on page 5-5) or CN9 (see "2138 System
Board Layout" on page 5-15).

• IDE Secondary Channel Master and Slave Drives in BIOS Setup
should be connected to the system board connector CN10(see
“2137 System Board "on page 5-5) or CN8 (see "2138 System
Board Layout" on page 5-15).

NOTE: The CD-ROM drive comes with system unit should be configured

as IDE Secondary Channel Slave device.

Check the hard disk and CD-ROM drives jumper settings. See “3.5-

−

In. Hard Disk Drive Jumper Locations” on page 5-21 or "5.25-In.
Hard Disk Drive Jumper Location" on page 5-24 and "CD-ROM
Drive" on page 2-34.

Check the voltages of all disk drive power connectors. See “Power

−

Supply Cable Connector Specifications” on page 5-18.
Correct the parameter settings under Disk Drives in the BIOS

−

Setup. See “Disk Drives” on page 1-21.
In the BIOS Setup, check that the correct drive size is set for the

−

flagged drive shown in the Installed Devices list.
If the problem remains, check the continuity on the drive and the

−

cable and replace it if necessary. If that does not fix the problem,
replace the system board.

005 –

2-28

End.

−

Select Diagnostics from the PC-Doctor diagnostics program main

−

menu. Select and execute Floppy Disk Test if you want to test
diskette drive. Select and execute Hard Disk Test if you want to
test hard disk drive.

Select Interactive Tests from the PC-Doctor diagnostics program

−

main menu, then select and execute CD-ROM/DVD Test if you
want to test CD-ROM drive.

If the diagnostics program did not detect a failure, but the system

−

still displays a failure:

• If an error or other symptom appears, go to “Index of Symptoms,
Messages, Error Codes, or Beeps” on page 2-8.

• If no error can be detected or the symptom is intermittent, go to
“Undetermined Problems” on page 2-44.

End.

−

Check Procedures 2-29

Factory-Installed Modem Card

NOTE:

001 - START

002 -

The factory-installed modem is 33.6 Kbps or 56 Kbps modem. A 4­pin voice-in/speaker-out cable should present if it has voice feature.

−

Power off the system unit.

−

Ensure that the modem is not configured with a conflicting COM
port and IRQ setting.

−

Ensure that the communication software is configured with the
correct COM and IRQ settings (same COM port and IRQ as the
modem).

−

Ensure that all communication parameters (baud rate, data, stop
and parity bits) are properly configured and are identical on both
sides.

−

Connect the phone line to the LINE port of the modem card.

NOTE:

Check the outside phone line by connecting a working telephone

−

Insert the diagnostics diskette into the diskette drive.

−

Power on the system unit.

−

Select

to the telephone wall jack. Listen for a dial tone to ensure that
the phone line is good.

Diagnostics

menu,

−

003 - DOES THE MODEM PASS THE TEST? (YES, READ AHEAD. NO,

GO TO STEP 004.)

−

−

−

−

−

2-30

All Tests,

Select

Power off the system unit.
Remove all adapter cards.
Connect a hard disk drive with pre-loaded Windows 95 inside.
Power on the system unit.
Perform the following steps under Windows 95.

then execute

Modem

test.

NOTE: If an operating system other than Microsoft Windows 95 is

installed, the program screens and icons may differ from these
instructions.

1. Start Microsoft Windows 95.

2. Select the Start icon.

3. Select Program, then select Accessories, Hyper Terminal.

4. Select the any a on-line service station, dial and connect to it.

004 - CAN THE MODEM DIAL OUT AND CONNECT TO ANY BBS

SUCCESSFULLY? (YES, READ AHEAD. NO, GO TO STEP 005.)

−

The modem adapter functions normally.

−

End.

005 -

−

Ensure that Windows 95 is properly installed, then power off the
system unit.

−

Plug the modem adapter card into a different ISA expansion slot.

−

Go to step 002.

−

If the error symptom still remains, replace the modem adapter card.

−

End.

Check Procedures 2-31

Audio (Not Supported by Di agnostics Program)

NOTE:

While performing this check, you may need to enter and exit

Microsoft Windows 95 several times. When instructed to select an
icon or button, double-click on the item with the mouse.

For more information about using Microsoft Windows 95, see the
user's guide that came with the computer.

If an operating system other than Microsoft Windows 95 is installed,
the program screens and icons may differ from these instructions.

001 - START

−

Power off the system unit.

−

Remove all adapter cards.

−

Connect a hard disk drive with pre-loaded Windows 95 inside.

−

Power on the system unit.

002 - DO ANY POST MESSAGES, ERROR CODES, BEEPS, OR

SYMPTOMS APPEAR? (YES, READ AHEAD. NO, GO TO STEP

003)

−

Go to “Index of Symptoms, Messages, Error Codes, or Beeps” on
page 2-8.

−

End.

003 - DO ANY MESSAGES OR ERROR CODES DISPLAY AFTER POST

COMPLETES BUT BEFORE MICROSOFT WINDOWS 95 STARTS?
(YES, READ AHEAD. NO, GO TO STEP 004)

NOTE:

004 -

2-32

If POST does not complete, answer this question "No."

−

Ensure that Windows 95 is properly installed.

−

End.

−

Perform the following under Windows 95.

NOTE: If an operating system other than Microsoft Windows 95 is

installed, the program screens and icons may differ from these
instructions.

1. Start Microsoft Windows 95.

2. Select the Start icon.

3. Select Settings, then select Control Panel.

4. Select the Sound icon.

5. In the Sound window, select chimes from the Names field. (To test
other adapter card software, select an action from a menu in that
software.)

005 - IS THE PREVIEW BUTTON, OR ACTION IN OTHER SOFTWARE,

SELECTABLE ON THE SCREEN (SHOWN IN BLACK AND NOT
GRAY)? (YES, GO TO STEP 006. NO, READ AHEAD.)

−

Ensure that Windows 95 is properly installed.

−

Go to step 001.

006 -

−

Select the Preview button from the Sound window.

007 - DO YOU HEAR ANY SOUND FROM THE SPEAKER? (YES, READ

AHEAD. NO, GO TO STEP 008.)

−

The audio feature is functioning normally. Click Cancel to close the
dialog box. Exit Microsoft Windows 95.

008 -

−

If the symptom remains or has changed, go to “Index of Symptoms,
Messages, Error Codes, or Beeps” on page 2-8.

−

End.

−

Make sure that the volume control is not turned low.

−

Make sure that the speaker and its adapter are not damaged.

−

Make sure that the speaker is plugged in speak-out jack. See “2137
System Board "on page 5-5 or "2138 System Board Layout" on
page 5-15.

−

If the error cannot be resolved, replace the system board.

−

End.

Check Procedures 2-33

CD-ROM Driv e

001 - START

−

Insert the diagnostics diskette into the diskette drive and ensure
that there is no CD in the CD-ROM drive.

−

002 - DO YOU SEE A MESSAGE “NO CD-ROM DRIVE OR MSCDEX

DEVICE DRIVER INSTALLED.”? (YES, READ AHEAD. NO, GO TO

003.)

−

−

−

003 - DO THE TESTS OF OPEN/CLOSE TRAY BY DIAGNOSTICS

PROGRAM AND BY DEPRESSING CD-ROM DRIVE BUTTON
WORK? (YES, READ AHEAD. NO, GO TO STEP 006.)

−

004 - CAN A CD BE READ FROM THE CD-ROM DRIVE? (YES, THEN

THE CD-ROM DRIVE FUNCTIONS NORMALLY. NO, READ
AHEAD.)

−

005 - IS THE CD STILL NOT READABLE? (YES, READ AHEAD. NO, GO

TO STEP 006.)

−

Interactive Tests

Select

Test

.

Exit the diagnostics program and power off the system.
Check and ensure that the CD-ROM drive power cable and audio

and data cables are not damaged and are connected properly.
Check and ensure that the CD-ROM drive driver is loaded correctly.

Load a known good data CD into the CD-ROM drive and try to read
its content by typing DIR on DOS prompt.

Try reading the CD with a known good CD-ROM drive.

Replace system board.

menu, then select and execute

CD-ROM

006 -

2-34

−

End.

−

Replace CD-ROM drive.

−

End.

Memory

001 - START

−

Power off the system unit.

−

Insert the diagnostics diskette into the diskette drive.

−

Ensure that all DIMMs are installed correctly.

−

Power on the system unit.

−

Take note of any messages, error codes, or symptoms.

002 - DO YOU RECEIVE POST MEMORY ERROR MESSAGE? (YES,

READ AHEAD. NO, GO TO STEP 003)

−

Enter BIOS Setup Utility then reboot the system. Take note of any
messages, error codes, or symptoms. If the error message
remains, go to step 005.

003 -

−

Follow the screen instructions to run the

004 - DOES THE MEMORY TEST COMPLETE WITHOUT AN ERROR?

(YES, READ AHEAD. NO, GO TO STEP 005.)

−

The system memory is now functioning correctly. If you suspect an
intermittent problem, run the

−

End.

Memory

Memory

test again.

test.

005 -

−

Replace each DIMM, one at a time, with a known working DIMM of
the same size and type.

−

If the problem does not appear, it means that the last DIMM
replaced is defective. If all DIMMs on the system board, have been
replaced and the problem remains, replace system board.

−

Go to step 001.

Check Procedures 2-35

Keyboard

001 - START

−

Power off system unit and ensure the keyboard plug is connected
properly.

002 -

−

Insert the diagnostics diskette into the diskette drive and power on
the system unit.

−

003 - DOES THE KEYBOARD FUNCTION CORRECTLY? (YES, READ

AHEAD. NO, GO TO STEP 004.)

−

−

004 - ARE THERE ANY STUCK KEYS OR ANY GRIME IN THE GAP OF

KEYCAPS? (YES, READ AHEAD. NO, GO TO STEP 005.)

−

−

005 - ARE THERE ANY BROKEN PINS IN THE KEYBOARD PLUG? (YES,

GO TO STEP 007. NO, READ AHEAD.)

−

006 - DOES THE ERROR SYMPTOM STILL REMAIN? (YES, READ

AHEAD. NO, GO TO STEP 007.)

−

−

007 -

−

Interactive Tests

Select

Keyboard is functioning normally.
End.

Power off the system unit. Carefully remove the grime and solve
the stuck keys problem.

Go to step 001.

Try with a known good keyboard.

Replace the system board.
End.

Replace the keyboard.

menu, then execute

Keyboard

test.

2-36

−

End.

Mouse

NOTE:

001 - START

002 -

003 - DO YOU SEE THE MOUSE CURSOR IN THE DIAGNOSTICS

004 - DOES THE MOUSE BUTTON WORK? (YES, READ AHEAD. NO, GO

005 - DOES THE MOUSE MOVE SMOOTHLY AND KEEP X AND Y

A sticking key button can cause the mouse to operate incorrectly. If
you suspect this, go to "Keyboard" on page 2-35.

−

Make sure that the mouse ball turns freely.

−

Make sure that the mouse plug connects properly.

−

Power off the system unit.

−

Insert the diagnostics diskette into the diskette drive.

−

Power on the system unit.

−

PROGRAM? (YES, READ AHEAD. NO, GO TO STEP 011)

−

TO STEP 007)

−

COORDINATES CHANGED? (YES, READ AHEAD. NO, GO TO
STEP 006)

−

Interactive Tests

Select

Test right (left) button and check if right (left) button works.

Test mouse cursor movement.

Mouse is functioned normally.

menu, then execute

Mouse

test.

006 -

007

−

End.

−

Power off the system unit.

−

Open mouse bottom cover and clean track ball.

−

Go to step 002.

−

Power off the system unit.

Check Procedures 2-37

−

Check the mouse plug.

008 - ARE THERE ANY BROKEN PINS IN THE MOUSE PLUG? (YES, GO

TO STEP 010. NO, READ AHEAD.)

−

Try with a known good mouse.

009 - DO THE ERROR SYMPTOMS STILL REMAIN? (YES, READ

AHEAD. NO, GO TO STEP 010.)

−

Replace the system board.

−

End

010 -

−

Replace the mouse.

−

End.

011 -

−

Exit diagnostics program.

−

Ensure that the mouse driver is properly installed.

−

Go to step 002.

2-38

Power Supply

001 - START

−

Power off the system unit.

−

Check that the power cord for continuity. Replace if necessary.

−

Check for the correct line voltage from the power outlet, and verify
that the voltage selector switch (if present) is set to the correct
voltage.

−

Power on the system unit.

002 - DOES THE POWER SUPPLY FAN RUN? (YES, GO TO STEP 003.

NO, GO TO STEP 004)

003 - DOES THE SYSTEM FAIL TO SHUT OFF WHEN THE ON/OFF

SWITCH IS PRESSED? (YES, READ AHEAD. NO, GO TO STEP

005)

−

You might have a damaged on/off switch cable assembly.

−

Disconnect the on/off switch cable assembly connector from the
power supply connector and take an ohm reading.

−

Go to step 007.

004 -

−

Disconnect the power cord from the back of the system unit.

−

Disconnect all power and switch cable connectors from the system
board and the power supply.

−

Disconnect the power connectors to all drives.

−

Make a connection (jumper) between the black and white wires of
the standby power control cable as shown in the following figure.

Figure 2- 1 Standby Power Cable

Check Procedures 2-39

−

Connect any one of the power connector to system board or drive
as power load for driving up power supply.

−

Reconnect the power cord.

005 - DOES THE POWER SUPPLY FAN RUN? (YES, READ AHEAD. NO,

GO TO STEP 009)

−

With the system powered on and the power supply fan running,
check the voltages of the power supply connectors for the system
board and all drive connectors, as shown in the following figures.

Figure 2- 2 . System Board Power Supply Connectors (Bottom View)

Figure 2- 3 Hard Drive or CD-ROM End of Power Cable

Figure 2- 4 3.5-In. Diskette Drive End of Power Cable

2-40

006 - ARE THE VOLTAGES CORRECT AND DOES THE FAN RUN?

(YES, READ AHEAD. NO, GO TO STEP 009)

−

The power supply is working normally.

−

If you suspect the on/off switch cable assembly, see Step 003.

−

If the fan continues to run when all connectors are plugged back in,
go to “Undetermined Problems” on page 2-44.

−

If the fan stops running when a drive connector is plugged back in,
go to "Start" on page 2-3.

007 - DO YOU HAVE AN OHM READING WHEN THE SWITCH IS

PRESSED AND AN OPEN READING WHEN THE SWITCH IS
RELEASED? (YES, READ AHEAD. NO, GO TO STEP 008)

−

Replace the on/off switch cable assembly.

008 -

−

Replace the system board.

−

End.

009 -

−

Replace the power supply.

−

End.

Check Procedures 2-41

Monitor

First, set the system to VGA mode. To do this in Windows 95, depress the
function key during startup. Safe mode (VGA) will be set for Windows 95. Use
the operating system's video setup to change the monitor resolution.

The monitors that come with the system are DDC2A/B or DDC1/2B+ (Display
Data Channel) compliant. While starting Windows 95, the DDC2 monitor
passes resolution and frequency information to the system. The system
interprets the data and sets up the proper refresh rate.

If the monitor type is set to the power saving mode, the screen remains black
and the LED lights or flashes in amber color. When the monitor is turned on
alone, or is turned on and connected to a powered-off system unit, the monitor
LED blinks in amber color. Under the normal operating conditions, the LED
lights in green color.

NOTE:

Some monitors have a detachable system I/O signal cable between

the monitor and the system unit. Check the line voltage, power cord,
and continuity for the system I/O signal cable before replacing the
monitor. See "Monitor Port Signals” on page 5-28 for pin
identification.

001 - START

−

Power off the system unit and monitor.

−

Remove all adapter cards.

−

Make sure that the monitor I/O signal cable is properly connected to
the system unit and monitor.

−

Make sure that the power cords are properly connected to the
system unit and monitor, and that the line voltage is correct.

F8

NOTE:

2-42

−

Make sure that the monitor contrast and brightness controls are not
turned too low.

−

Make sure that the diagnostics diskette is in the diskette drive.

−

Power on the monitor, and wait 20 seconds.

−

Power on the system unit.

If the monitor was not sold together with the system unit, you may
need to refer to the service information provided with the monitor.

002 - IS THE SCREEN READABLE? (YES, READ AHEAD. NO, GO TO

STEP 004)

NOTE: If the screen shows a blinking cursor with no memory count running,

answer this question "No."

−

Select Interactive Tests from the Main Menu.

−

Select and execute Video test from the menu.

−

Follow the prompts and perform the video test.

−

Go to “Index of Symptoms, Messages, Error Codes, or Beeps” on
page 2-8.

NOTE: You might have to adjust the monitor controls to obtain the best
image.

003 - DOES THE MONITOR SUCCESSFULLY PASS ALL TESTS? (YES,

READ AHEAD. NO, GO TO STEP 004)

−

You have successfully completed the video diagnostics tests. If the
problem remains, go to “Index of Symptoms, Messages, Error
Codes, or Beeps” on page 2-8.

−

End.

004 -

−

Power off the system unit.

−

Remove the hard disk drive system cable.

−

Power on the system unit.

005 - IS THE SCREEN READABLE?

−

Replace the monitor. If the symptom remains, replace the system
board.

−

End.

Check Procedures 2-43

Undetermined Problems

If an error code is present, go to “Index of Symptoms, Messages, Error Codes,
or Beeps” on page 2-8. If no error code is present, continue with this check.
Check the power supply voltages (see "Power Supply Cable Connector
Specifications" on page 5-18). If the voltages are correct, return here and
continue with the following steps:

1. Power off the system unit.

2. Perform the following checks, one by one, until you have isolated the
problem FRU (refer to "Parts/Test Point Locations" on page 5-1 for
locations):

• Check all system board jumper positions and switch settings.

• Check all adapter card jumper positions.

• Check all device jumper positions.

• Check all cables and connectors for proper installation.

If the jumpers, switch, and voltage settings are correct, return here and
continue:

3. Remove or disconnect the following, one at a time:

• Non-IBM devices

• External devices

• Any adapters

• Modem card, if installed

• CD-ROM drive

• Diskette drive

• Hard disk drive

• DIMM

• Processor

• System board

4. Power on the system unit.

5. Repeat steps 1 through 4 until you find the failing device or adapter.

If the symptom changes, go to “Index of Symptoms, Messages, Error Codes,
or Beeps” on page 2-8 or to the check procedure for the last item tested.

Replace the last item tested if the system operates normally after removing
the last item.

2-44

Diagnostic Aids

Diagnostic Aids............................................................................................3-1

Introduction ....................................................................................................3-2

Power-On Self Test........................................................................................3-2

Diagnostic Diskette........................................................................................3-3

Diagnostics Program Features.................................................................3-3

Using the Diagnostic Diskette..................................................................3-5

Using Diagnostic Program from Recovery CD.........................................3-6

Copyright IBM Corp. 1998 3-1

Introduction

This section explains the diagnostic aids, power-on self test (POST) and
diagnostics program (PC-Doctor), that are available for troubleshooting
problems on the system.

Power-On Self Test

Each time you power-on the system, the power-on self test (POST) is initiated.
Several items are tested during POST, but is for the most part transparent to
the user.

POST checks the following:

• System Board • Mouse

• Memory • Parallel Port(s)

• VGA Controller • Serial Port(s)

• Hard Disk Drive(s) • Modem(s)

• Floppy Diskette

Drive(s)

• Keyboard • Sound

To start POST, turn on the monitor and then the system unit. The following
will happen:

1. The IBM logo will appear on center of the screen, followed by a beep from
the internal system buzzer and the message “Press F1 to go to the Setup
Utility” will appear at the lower left corner of the screen.

2. At this time one of two hot-keys may be used. The F1 key, as described
on screen, will cause the system Setup Utility menu to appear. The F9 key
will switch the graphical IBM logo screen to the traditional text-based
system startup screen, which displays BIOS version and system memory
tested.

3. If an error is detected during POST, the IBM logo screen will automatically
switch to the text-based screen and display the error message or code.
Depending on the criticality of the POST error, the system may halt and/or
display the message “Press F1 to go to the Setup or Enter to continue…”
If this message appears, pressing the Enter key will allow the system to
attempt to proceed despite the reported error; pressing F1 will cause the
system Setup Utility menu to appear.

4. If no keyboard keys are pressed, and if POST is completed without errors,
the system will then proceed with the loading of DOS or other operating

• CD-ROM
Drive(s)

Controller

3-2

system from diskette drive A or a hard disk drive or CD-ROM drive,
depending on the options selected in the Setup Utility.
If any errors are detected by POST, there will be an error message
accompanied with an error code shown on display screen. See “Index of
Symptoms, Messages, Error Codes, or Beeps” on page 2-8 to find the
most likely cause and countermeasure.

Diagnostic Diskette

WARNING:

The diagnostics program comes on diskette along with this book. This version
of PC-Doctor diagnostics program, developed by Watergate for IBM, is the
primary method of testing the computer. You can use it to test the IBM
components of the system and some external devices. The amount of time
required to test components depends on the number of components installed
and selected. The more devices you have attached to your system and
selected in PC-Doctor, the longer the testing will take.

WARNING:

This manual is intended to test the IBM Aptiva 2137 and 2138
machine type only. Testing devices which are not included with the
original product package, including other IBM products, prototype
cards, or modifying hardware settings may give false errors and
invalid system responses. The diagnostics not specifically made for
this model may also report incorrect errors and information.

The diagnostics program for Aptiva 2137 and 2138 are different.
Use the diagnostics program not specifically made for this model will
report false errors and incorrect information.

Diagnostics Program Features

Diagnostics program (PC-Doctor) includes the following features:

Table 3- 1 Diagnostic Program Main Menu Selections

Main Menu Selections Submenu Selections

Diagnostics

• System Test

• Memory Test

• Hard Disk Test

• Floppy Disk Test

• All Tests

Diagnostic Aids 3-3