Ibm 2274 Users Manual Windsor3 Ch1

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2015-02-02

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Hardware Maintenance Service
for Service Level A
Machine Type 2274

First Edition (May, 2000)
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 Corporation, Dept. E23/962-2, 455 Park Place,
Lexington, KY 40511-1856, 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 2000.
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
Contents ..............................................................iii
Notices ................................................................vii
Safety Information ................................................viii
Laser Compliance Statement..............................xxxi
Trademarks .......................................................xxxii
Preface ............................................................. xxxiii
General Information ............................................. 1
Introduction ............................................................2
Product Overview ................................................... 3
Processor ........................................................ 3
Memory ...........................................................3
External Ports ..................................................4
Diskette Drive ..................................................4
Hard Disk Drive ...............................................4
DVD-ROM Drive .............................................. 5
Multimedia .......................................................5
Power Management ........................................ 5
Power Supply ..................................................6
Internal Cabling ...............................................6
Monitor (Not included with some models) ....... 6
Keyboard .........................................................7
Mouse .............................................................7
Hardware Interfaces ...............................................8
CMOS Reset ........................................................ 10
Power-On Password ............................................ 11
Flash (BIOS) Update Procedure .......................... 12
BIOS-contained Model Number and
Serial Number ...................................................... 13
BIOS Configuration/Setup Utility .......................... 14
Working with the Setup Menus ..................... 14
Viewing System Information, and
Product Data ................................................. 17
Devices and I/O ports .................................... 17
Startup Options .............................................20
Date and Time ...............................................21
Advanced Setup ............................................ 23
Power Management Setup ............................ 24
Specifications .......................................................28
Dimension (width x depth x height) ............... 28
Weight ...........................................................28
Environment ..................................................28
Power consumption ....................................... 28

iii

Electrical input ...............................................28
Operating Requirements ...................................... 29
Check Procedures .............................................31
Introduction ..........................................................32
Start .....................................................................33
Index of Symptoms, Messages, Error Codes,
or Beeps ...............................................................38
Troubleshooting ................................................... 54
Factory-Installed Storage Devices ................ 54
Factory-Installed Modem Card ............................. 58
Audio (Not Supported by Diagnostics Program) .. 60
CD/DVD-ROM Drive ............................................ 63
Memory ................................................................65
Keyboard ..............................................................66
Mouse ..................................................................67
Power Supply .......................................................69
Monitor .................................................................72
Undetermined Problems ...................................... 74
Diagnostic Aids ..................................................77
Introduction ..........................................................78
Power-On Self Test ..............................................79
Diagnostic Diskette ..............................................81
Using the Diagnostic Diskette ....................... 81
Using Diagnostic Program from
Recovery CD ................................................. 82
Diagnostics Program Features ...................... 83
Repair Information .............................................85
Removals and Replacements .............................. 86
Handling ESD-Sensitive Parts ............................. 87
Cover .............................................................90
Bay Panels .................................................... 92
Bay 1- 5.25-In. Bay
(Internal or External Access) ......................... 93
Bay 3 - 3.5-In. Bay
(Internal or External Access) ......................... 94
Bay 4 - 3.5-In. Bay
(External Access for Diskette Drive) ............. 94
Front Panel ....................................................96
Power Supply ................................................97
Adapter Cards ...............................................98
Memory(DIMM) .............................................99
AMD K7 Duron Processor ........................... 100
System Backup Battery ............................... 102

Indicator LED and Cable ............................. 103
System Board ..............................................104
Parts/Test Point Locations .............................. 107
Introduction ........................................................108
System Board Jumpers and Connectors ........... 109
Power Supply Connectors and Voltages ........... 111
Network Cards ...................................................113
Factory-Installed Modem Card Layout ............... 114
Video Cards .......................................................115
Nvidia M64 w/ TV Out, 32MB ...................... 115
Nvidia NV10 w/ TV Out, 32MB .................... 115
3.5-In. Hard Disk Drive Jumper Settings ............ 117
CD-ROM Drive ...................................................119
CD-ROM Drive Rear Panel Connectors
and Jumpers ............................................... 121
CD-ROM R/W Drive ...........................................122
CD-ROM R/W Drive Rear Panel
Connectors and Jumpers ............................ 123
DVD-ROM Drive .......................................... 124
DVD-ROM Drive Rear Panel Connectors
and Jumpers ............................................... 125
DIMM Configurations ......................................... 126
System Board Connector Pin Signals ................ 127
Monitor Port Signals .................................... 127
Serial Port Signals ....................................... 127
Parallel Port Signals .................................... 128
Mouse Port Signals ..................................... 128
Keyboard Port Signals ................................ 128
Diskette Drive Cable Connector Signals ..... 129
IDE Cable Connector Signals ..................... 130
Safety Inspection Guide .................................. 131
General Guidelines ............................................132
Parts Catalog .................................................... 133
Abbreviations .....................................................134
System Assembly ..............................................135
Assembly 1: System Unit ............................ 135
Assembly 2: Diskette, Hard Drive
and Zip Drive ............................................... 137
Assembly 3: CD/DVD-ROM Drive ............... 138
Assembly 4: Power Cord ............................. 139
Assembly 5: Keyboard and Mouse ............. 140

Appendix A. FRU Number List ........................ 141
Appendix B. Online Support ........................... 143
Index ..................................................................145

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 IB
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 hardwarerelated 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 Personal Computer might have voltage
switches, which must 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

200-240 V

230 V

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 computer.
• Incorrect: change the voltage switch setting.

Notices vii

Safety Information

DANGER
To avoid a shock hazard, do not connect or
disconnect any cables or perform installation,
maintenance, or reconfiguration of this product during
an electrical storm.
To avoid shock hazard:

• The power cord must be connected to a properly
wired and earthed receptacle.

• Any equipment to which this product will be
attached must also be connected to properly wired
receptacles.
When possible, use one hand to connect or
disconnect signal cables to prevent a possible shock
from touching two surfaces with different electrical
potentials.
Electrical current from power, telephone, and
communications cables is hazardous. To avoid shock
hazard, connect and disconnect cables as described
following when installing, moving, or opening covers
of this product or attached devices.
To Connect
1. Turn Everything OFF.
2. First, attach all cables to
devices.
3. Attach signal cables to
receptacles.
4. Attach power cord(s) to
outlet.
5. Turn device ON

To Disconnect
1. Turn Everything OFF.
2. First, remove power
cord(s) from outlet.
3. Remove signal cables
from receptacles.
4. Remove all cables from
devices.

IMPORTANT:
When replacing the battery, use only IBM Part
Number 33F8354 or an equivalent type battery
recommended by the manufacturer. If your
system has a module containing a lithium
battery, replace it only with the same module
type made by the same manufacturer. The

viii

battery contains lithium and can explode if not
properly used, handled, or disposed of.
Do not:

• Throw or immerse into water
• Heat to more than 100°C (212°F)
• Repair or disassemble
Dispose the battery as required by local ordinances
or regulations.

IMPORTANT:
When a CD-ROM drive is installed, note the following.
Use of controls or adjustments or performance of
procedures other than those specified herein might
result in hazardous radiation exposure.
Removing the covers of the CD-ROM drive could
result in exposure to hazardous laser radiation. There
are no serviceable parts inside the CD-ROM drive.
Do not remove the CD-ROM drive covers.
DANGER
Some CD-ROM drives contain an embedded Class
3A or Class 3B laser diode. Note the following.
Laser radiation when open. Do not stare into the
beam, do not view directly with optical instruments,
and avoid direct exposure to the beam.

IMPORTANT:
Electrical current from power, telephone, and
communication cables can be hazardous. To avoid
personal injury or equipment damage, disconnect the
attached power cords, telecommunications systems,
networks, and modems before you open the server
covers, unless instructed otherwise in the installation
and configuration procedures.

Notices ix

PERIGO:
Para evitar choques elétricos, não conecte ou
desconecte nenhum cabo, nem efetue instalação,
manutenção ou reconfiguração deste produto
durante uma tempestade com raios.
Para evitar choques elétricos:

• O cabo de alimentação deve ser conectado a um
receptáculo

corretamente instalado e aterrado.

• Todos os equipamentos aos quais este produto
será conectado devem também ser conectados a
receptáculos corretamente instalados.
Quando possível, utilize uma das mãos para
conectar ou desconectar cabos de sinal, para evitar
um possível choque ao tocar duas superfícies com
potenciais elétricos diferentes.
A corrente elétrica proveniente de cabos de
alimentação, de telefone e de comunicação é
perigosa. Para evitar choques elétricos, conecte e
desconecte os cabos conforme descrito a seguir, ao
instalar, movimentar ou abrir tampas deste produto
ou de dispositivos conectados.
Para Conectar
1.DESLIGUE tudo.

Para Desconectar
1.DESLIGUE tudo.

2.Conecte primeiro todos
oscabos nosdispositivos.

2.Remova primeiro o(s)
cabo(s) de alimentação
das tomadas.
3.Conecte os cabos de sinal
nos receptáculos.
3.Remova os cabos de sinal
dos receptáculos.
4.Conecte o(s) cabo(s) de
alimentação nas
tomadas.
5.LIGUE o dispositivo

4.Remova todos os cabos
dos dispositivos

CUIDADO:
Ao substituir a bateria, utilize apenas o Número de
Peça IBM 33F8354 ou um tipo de bateria equivalente
recomendado pelo fabricante. Se seu sistema
possuir um módulo com uma bateria de lítio,
substitua-o apenas pelo mesmo tipo de módulo,
produzido pelo mesmo fabricante. A bateria contém
lítio e pode explodir se não for utilizada, manuseada
e descartada de forma adequada.
Não:

• Jogue ou coloque na água
• Aqueça a mais de 100°C (212°F)
• Conserte nem desmonte.
Descarte a bateria conforme requerido pelas
disposições e regulamentações locais.

CUIDADO:
Quando uma unidade de CD-ROM estiver instalada,
observe o seguinte.
A utilização de controles ou ajustes ou a execução de
procedimentos diferentes daqueles especificados
nesta publicação pode resultar em exposição
perigosa à radiação.
A remoção das tampas da unidade de CD-ROM pode
resultar em exposição a radiação perigosa de laser.
Não existem peças que possam ser consertadas no
interior da unidade de CD-ROM. Não remova as
tampas da unidade de CD-ROM.
PERIGO:
Algumas unidades de CD-ROM contém um diodo de
laser da Classe 3A ou da Classe 3B. Observe o
seguinte.
Radiação de laser quando aberto. Não olhe
diretamente para o feixe de laser, não olhe

Notices xi

diretamente com instrumentos óticos, e evite
exposição direta ao raio.

CUIDADO:
A corrente elétrica proveniente de cabos de
alimentação, de telefone e de comunicação é
perigosa. Para evitar ferimentos pessoais ou danos
aos equipamentos, desconecte os cabos de
alimentação, sistemas de telecomunicação, redes e
modems antes de abrir as tampas do servidor, a
menos que receba outras instruções nos
procedimentos de instalação e configuração.

xii

Notices xiii

xiv

Notices xv

xvi

PERIGO:
Pour éviter tout risque de choc électrique, ne
manipulez aucun câble et n'effectuez aucune
opération d'installation, d'entretien ou de
reconfiguration de ce produit au cours d'un orage.
Pour éviter tout risque de choc électrique :

•

Les cordons d'alimentation du présent produit et
de tous les appareils qui lui sont connectés doivent
être branchés sur des socles de prise de courant
correctement câblés et mis à la terre.

Afin d'éviter tout risque de choc électrique provenant
d'une différence de potentiel de terre, n'utilisez
qu'une main, lorsque cela est possible, pour
connecter ou déconnecter les cordons d'interface.
Le courant électrique passant dans les câbles de
communication, ou les cordons téléphoniques et
d'alimentation peut être dangereux. Pour éviter tout
risque de choc électrique, lorsque vous installez ou
que vous déplacez le présent produit ou des
périphériques qui lui sont raccordés, reportez-vous
aux instructions ci-dessous pour connecter et
déconnecter les différents cordons.
Connexion
1. Mettez les unités hors
tension.

Déconnexion
1. Mettez les unités hors
tension.

2. Commencez par
brancher tous les
cordons sur les unités.

2. Commencez pas
débrancher les cordons
alimentation des socles
de prise de courant.

3. Branchez les câbles
d'interface sur les prises. 3. Débranchez les câbles
d'interface des prises.
4. Branchez les cordons
d'alimentation sur un
socle de prise de
courant.

4. Débranchez tous les
câbles des unités.

5. Mettez les unités sous
tension.

Notices xvii

ATTENTION:
Remplacez la pile usagée par une pile de référence
identique exclusivement - voir la référence IBM - ou
par une pile équivalente recommandée par le
fabricant. Si votre système est doté d'un module
contenant une pile au lithium, vous devez le
remplacer uniquement par un module identique,
produit par le même fabricant. La pile contient du
lithium et présente donc un risque d'explosion en cas
de mauvaise manipulation ou utilisation.

• Ne la jetez pas à l'eau.
• Ne l'exposez pas à une température supérieure à
100°C.

• Ne cherchez pas à la réparer ou à la démonter.
Pour la mise au rebut, reportez-vous à la
réglementation en vigueur.

ATTENTION:
Si une unité de CD-ROM est installée, prenez
connaissance des informations suivantes :
Pour éviter tout risque d'exposition au rayon laser,
respectez les consignes de réglage et d'utilisation
des commandes, ainsi que les procédures décrites
dans le présent document.
Pour éviter une exposition directe au rayon laser,
n'ouvrez pas l'unité de CD-ROM. Vous ne pouvez
effectuer aucune opération de maintenance à
l'intérieur.
PERIGO:
Certaines unités de CD-ROM contiennent une diode
laser de classe 3A ou 3B. Prenez connaissance des
informations suivantes :
Rayonnement laser lorsque le carter est ouvert.
Évitez de regarder fixement le faisceau ou de

xviii

l'observer à l'aide d'instruments optiques. Évitez une
exposition directe au rayon.

ATTENTION:
Le courant électrique circulant dans les câbles de
communication et les cordons téléphoniques et
d'alimentation peut être dangereux. Pour votre
sécurité et celle de l'équipement, avant de retirer les
carters du serveur, mettez celui-ci hors tension et
déconnectez ses cordons d'alimentation, ainsi que
les câbles qui le relient aux réseaux, aux systèmes
de télécommunication et aux modems (sauf
instruction contraire mentionnée dans les procédures
d'installation et de configuration)
.

Notices xix

VORSICHT:
Aus Sicherheitsgründen bei Gewitter an diese
Gerät keine Kabel anschließen oder lösen. Ferner
keine Installations-, Wartungs- oder
Rekonfigurationsarbeiten durchführen.
Aus Sicherheitsgründen:

• Gerät nur an eine Schutzkontaktsteckdose mit
ordnungsgemäß geerdetem Schutzkontakt
anschließen.

• Alle angeschlossenen Geräte ebenfalls an
Schutzkontaktsteckdosen mit ordnungsgemäß
geerdetem Schutzkontakt anschließen.
Signalkabel möglichst einhändig anschließen oder
lösen, um einen Stromschlag durch Berühren von
Oberflächen mit unterschiedlichem elektrischem
Potential zu vermeiden.
Elektrische Spannungen von Netz-, Telefon- und
Datenübertragungsleitungen sind gefährlich. Um
einen Stromschlag zu vermeiden, nur nach den
Anweisungen arbeiten, die für Installation, Transport
oder Öffnen von Gehäusen dieses Produkts oder
angeschlossenen Einheiten gelten.
Kabel anschließen
1.Alle Geräte ausschalten
und Netzstecker ziehen.

Kabel lösen
1.Alle Geräte ausschalten.

2.Zuerst alle Kabel an
Einheiten anschließen.

2.Zuerst Netzstecker von
Steckdose lösen.

3.Signalkabel an
Anschlußbuchsen
anschließen.

3.Signalkabel von
Anschlußbuchsen lösen.

4.Netzstecker an Steckdose 4.Alle Kabel von Einheiten
anschließen.
lösen.
5.Gerät einschalten.

ACHTUNG:
Eine verbrauchte Batterie nur durch eine Batterie mit
der IBM Teilenummer 33F8354 oder durch eine vo
Hersteller empfohlene Batterie ersetzen. Wenn Ihr
System ein Modul mit einer Lithium-Batterie enthält,
ersetzen Sie es immer mit dem selben Modultyp vom
selben Hersteller. Die Batterie enthält Lithium und
kann bei unsachgemäßer Verwendung, Handhabung
oder Entsorgung explodieren.
Die Batterie nicht

• mit Wasser in Berührung bringen.
• über 100 C erhitzen.
• reparieren oder zerlegen.
Die örtlichen Bestimmungen für die Entsorgung von
Sondermüll beachten.

ACHTUNG:
Wenn ein CD-ROM-Laufwerk installiert ist, beachten
Sie folgendes. Steuer- und Einstellelemente sowie
Verfahren nur entsprechend den Anweisungen im
vorliegenden Handbuch einsetzen. Andernfalls kann
gefährliche Laserstrahlung auftreten.
Das Entfernen der Abdeckungen des CD-ROMLaufwerks kann zu gefährlicher Laserstrahlung
führen. Es befinden sich keine Teile innerhalb des
CD-ROM-Laufwerks, die vom Benutzer gewartet
werden müssen. Die Verkleidung des CD-ROMLaufwerks nicht öffnen.
VORSICHT:
Manche CD-ROM-Laufwerke enthalten eine
eingebaute Laserdiode der Klasse 3A oder 3B. Die
nachfolgend aufgeführten Punkte beachten.
Laserstrahlung bei geöffneter Tür. Niemals direkt in
den Laserstrahl sehen, nicht direkt mit optischen

Notices xxi

Instrumenten betrachten und den Strahlungsbereich
meiden.

ACHTUNG:
An Netz-, Telefon- und Datenleitungen können
gefährliche elektrische Spannungen anliegen. Um
eine Gefährdung des Benutzers oder Beschädigung
des Geräts zu vermeiden, ist der Server
auszuschalten. Die Verbindung zu den
angeschlossenen Netzkabeln,
Telekommunikationssystemen, Netzwerken und
Modems ist vor dem Öffnen des Servergehäuses zu
unterbrechen (sofern in Installations- und
Konfigurationsanweisungen nicht anders angegeben)

xxii

PERICOLO:
Per evitare il pericolo di scosse elettriche durante i
temporali, non collegare o scollegare cavi, non
effettuare l'installazione, la manutenzione o la
riconfigurazione di questo prodotto.
Per evitare il pericolo di scosse elettriche:

• collegare il cavo di alimentazione ad una presa
elettrica correttamente cablata e munita di terra di
sicurezza;

• collegare qualsiasi apparecchiatura collegata a
questo prodotto ad una presa elettrica
correttamente cablata e munita di terra di
sicurezza.
Quando possibile, collegare o scollegare i cavi di
segnale con una sola mano per evitare il rischio di
scosse derivanti dal contatto con due superfici a
diverso potenziale elettrico.
La corrente elettrica circolante nei cavi di
alimentazione, del telefono e di segnale è pericolosa.
Per evitare scosse elettriche, collegare e scollegare
icavi come descritto quando si effettuano
l'installazione, la rimozione o l'apertura dei coperchi
di questo prodotto o durante il collegamento delle
unità.

Per collegare
1.SPEGNERE tutti i
dispositivi.

Per scollegare
1.SPEGNERE tutti i
dispositivi.

2.Collegare prima tutti I cavi 2.Rimuovere prima il(i)
alle unità.
cavo(i) di alimentazione
dalla presa elettrica.
3.Collegare i cavi di segnale
alle prese.
4.Collegare il(i) cavo(i) di
alimentazione alla presa
elettrica.

3.Rimuovere i cavi di
segnale dalle prese.
4.Rimuovere tutti i cavi dalle
unità.

5.ACCENDERE le unità.

Notices xxiii

ATTENZIONE:
Quando si sostituisce la batteria, utilizzare solo una
batteria IBM o batterie dello stesso tipo o di tipo
equivalente consigliate dal produttore. Se il sistema
di cui si dispone è provvisto di un modulo contenente
una batteria al litio, sostituire tale batteria solo con un
tipo di modulo uguale a quello fornito dal produttore.
La batteria contiene litio e può esplodere se utilizzata,
maneggiata o smaltita impropriamente.
Evitare di:

• Gettarla o immergerla in acqua
• Riscaldarla ad una temperatura superiore ai 100°C
• Cercare di ripararla o smaltirla
Smaltire secondo la normativa in vigore (D.Lgs 22 del
5/2/97) e successive disposizioni nazionali e locali.

xxiv

ATTENZIONE:
Quando è installata un'unità CD-ROM, notare quanto
segue:
L'utilizzo di controlli, regolazioni o l'esecuzione di
procedure non descritti nel presente manuale
possono provocare l'esposizione a radiazioni
pericolose.
L'apertura di un'unità CD-ROM può determinare
l'esposizione a radiazioni laser pericolose. All'interno
dell'unità CD-ROM non vi sono parti su cui effettuare
l'assistenza tecnica. Non rimuovere i coperchi
dell'unità CD-ROM.
PERICOLO:
Alcune unità CD-ROM contengono all'interno un
diodo laser di Classe 3A o Classe 3B. Prestare
attenzione a quanto segue:
Aprendo l'unità vengono emesse radiazioni laser.
Non fissare il fascio, non guardarlo direttamente con
strumenti ottici ed evitare l'esposizione diretta al
fascio.

ATTENZIONE:
La corrente circolante nei cavi di alimentazione, del
telefono e di segnale è pericolosa. Per evitare
situazioni pericolose per le persone o
danneggiamenti all'apparecchiatura, scollegare i cavi
di alimentazione, i sistemi di telecomunicazioni, le reti
e ed i modem prima di aprire i coperchi del servente
se non diversamente indicato nelle procedure di
installazione e configurazione.

Notices xxv

xxvi

Notices xxvii

PELIGRO:
Para evitar una posible descarga eléctrica, no
conecte ni desconecte los cables ni lleve a cabo
ninguna operación de instalación, de mantenimiento
o de reconfiguración de este producto durante una
tormenta eléctrica.
Para evitar una posible descarga:

• El cable de alimentación debe conectarse a un
receptáculo con una instalación eléctrica correcta
y con toma de tierra.

• Los aparatos a los que se conecte este producto
también deben estar conectados a receptáculos
con la debida instalación eléctrica.
Cuando sea posible, utilice una sola mano para
conectar o desconectar los cables de señal a fin de
evitar una posible descarga al tocar dos superficies
con distinto potencial eléctrico.
La corriente eléctrica de los cables de
comunicaciones, teléfono y alimentación puede
resultar peligrosa. Para evitar una posible descarga,
siga las indicaciones de conexión y desconexión de
los cables siempre que tenga que instalar, mover o
abrir las cubiertas de este producto o de los
dispositivos acoplados.
Instrucciones de
conexión
1.Apague todos los
componentes (OFF).

Instrucciones de
desconexión
1.Encienda todos los
componentes (ON).

2.En primer lugar, conecte
todos los cables a los
dispositivos.

2.En primer lugar, retire los
cables de alimentación de
las tomas.

3.Conecte los cables de
señal a los receptáculos.

3.Retire los cables de señal
de los receptáculos.

4.Conecte los cables de
alimentación a las tomas.

4.Retire todos los cables de
los dispositivos.

5.Encienda el dispositivo
(ON).

xxviii

IMPORTANT:
Al cambiar la batería, utilice únicamente la batería
IBM Número de pieza 33F8354 o un tipo de batería
equivalente recomendado por el fabricante. Si el
sistema tiene un módulo que contiene una batería de
litio, sustitúyalo únicamente por el mismo tipo de
módulo del mismo fabricante. La batería contiene litio
y puede explotar si no se utiliza, manipula o desecha
correctamente.
Lo que no debe hacer

• Tirar o sumergir el producto en agua.
• Exponer el producto a una temperatura superior a
100°C.

• Reparar o desmontar el producto.
Cuando quiera desechar la batería, siga las
disposiciones y reglamentaciones locales.

IMPORTANT:
Cuando instale una unidad de CD-ROM, tenga en
cuenta la siguiente información.
Si se llevan a cabo controles o ajustes o se utilizan
métodos que no se atengan a lo aquí especificado,
se puede producir una exposición peligrosa a las
radiaciones.
Si se retiran las cubiertas de la unidad de CD-ROM,
se puede producir una peligrosa exposición a
radiaciones de láser. Dentro de la unidad de CDROM no existen piezas reparables. No retire las
cubiertas de la unidad de CD-ROM.
PELIGRO:
Algunas unidades de CD-ROM tienen incorporado un
diodo de láser de Clase 3A o de Clase 3B Tenga en
cuenta la siguiente información.

Notices xxix

Cuando la unidad está abierta se generan emisiones
de rayos láser. No dirija la mirada al haz, no lo
observe directamente con instrumentos ópticos y
evite la exposición directa.

IMPORTANT:
La corriente eléctrica de los cables de
comunicaciones, de teléfono y de alimentación puede
resultar peligrosa. Para evitar posibles lesiones o
daños del aparato, desconecte los cables de
alimentación, los sistemas de telecomunicaciones,
las redes y los módems antes de abrir las cubiertas
del servidor, salvo que se indique lo contrario en las
instrucciones de las operaciones de instalación y
configuración.

xxx

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 LASE
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.

Notices xxxi

Trademarks
The following are trademarks of the IBM Corporation
in the United States or other countries or both:
AT
HelpCenter
IBM
Operating System/2
OS/2
Personal System/2
PS/1
PS/2
Intel, Pentium, MMX, EtherExpress, and LANDesk
are trademarks or registered trademarks of Intel
Corporation.
Microsoft, MS-DOS, Windows, and Windows NT are
trademarks or registered trademarks of Microsoft
Corporation.
Other company, product, and service names may be
trademarks or service marks of others.

xxxii

Preface
This manual contains service information for the 2274
Service Level A (SL-A) model of the IBM Personal
Computer, worldwide. This manual is intended to be
used as a stand-alone document to service machine
type 2274 products. It is divided into the following
chapters:
Notices contains important safety information and
notices required to service this computer.
General Information contains a brief description of
this manual.
Check Procedures provides step-by-step
instructions that aid in locating the failing Field
Replaceable Unit (FRU).
Diagnostic Aids explains how to use the diagnostics
tools for isolating failures.
Repairing Information contains illustrations and
descriptions to disassemble and reassemble the
computer.
Parts/Test Point Locations contains illustrations and
descriptions of the locations of the major parts,
jumpers, and connectors.
Safety Inspection Guide contains information about
inspecting a machine for safety problems before
putting the machine under a Maintenance
Agreement.
Parts Catalog contains descriptions, illustrations,
and part numbers for individual FRUs.
Appendix A, FRU Number Index contains part
numbers listed in numerical order.

Notices xxxiii

xxxiv

General Information
Introduction ............................................................2
Product Overview ................................................... 3
Processor ........................................................ 3
Memory ...........................................................3
External Ports ..................................................4
Diskette Drive ..................................................4
Hard Disk Drive ...............................................4
DVD-ROM Drive .............................................. 5
Multimedia .......................................................5
Power Management ........................................ 5
Power Supply ..................................................6
Internal Cabling ...............................................6
Monitor (Not included with some models) ....... 6
Keyboard .........................................................7
Mouse .............................................................7
Hardware Interfaces ...............................................8
CMOS Reset ........................................................ 10
Power-On Password ............................................ 11
Flash (BIOS) Update Procedure .......................... 12
BIOS-contained Model Number and
Serial Number ...................................................... 13
BIOS Configuration/Setup Utility .......................... 14
Working with the Configuration/Setup
Utility Menus ..................................................14
Viewing System Information, and
Product Data ................................................. 17
Devices and I/O ports .................................... 17
Startup Options .............................................20
Date and Time ...............................................21
Advanced Setup ............................................ 23
Power Management Setup ............................ 24
Specifications .......................................................28
Dimension (width x depth x height) ............... 28
Weight ...........................................................28
Environment ..................................................28
Power consumption ....................................... 28
Electrical input ...............................................28
Operating Requirements ...................................... 29

General Information 1

Introduction
This chapter gives a general overview of the Personal
Computer Type 2274, describes the standard and
optional features, and details its functional and
environmental specifications.

IBM Desktop System HMM

Product Overview
Personal Computer Type 2274 has three PCI slots
and supports the AMD K7 Duron processor family
with Socket A processor package type.
The Personal Computer Type 2274 supports
Accelerated Graphics Port (AGP) 2X / 4X, which
allows installed system memory to be used as texture
memory, yielding a huge texture footprint to enhance
3D graphical display performance.
Listed below are 2274 system features:

Processor
• Socket A connector.
• Detachable CPU fan sink.
• 128 KB of on-chip level one (L1) cache
• 64 KB level two (L2) cache support for Duron
• AMD K7 processor; 200MHz front side bus, 600/
700MHz, 0.18 Microns, with 3DNow!™ technology

• Multiple parallel x86 instruction decoders

Memory
• 168-pin Synchronous Dynamic Random Access
Memory (SDRAM), Dual in-line Memory Module
(DIMM) sockets.
- 3 memory sockets.
- 8MB, 16MB, 32MB, 64MB, 128MB and 256MB
DIMM.
- PC-100/133 (8-128 M-bit, ECC, 133MHz,
3.3volt) DIMMs with gold contacts
- Maximum memory is 768MB

General Information 3

External Port
• 2x/4x AGP video card (15-pin VGA connector)
• Multi-Mode Parallel port (25-pin D-type connector)
• Serial port (9-pin D-sub connector). 2274 has one
serial ports, serial port 1

• Keyboard and mouse port
• Four USB ports (2 on port bracket, the other 2 on
the front panel)

• Game/MIDI port (15-pin D-sub connector)
• Microphone-in jack
• Speaker-out jack
• Line-in jack
• Telephone line-out connector (modem adapter
card available)

• Telephone line-in connector (modem adapter card
available)

• RJ-45 connector (adapter card available)

Diskette Drive
• 3.5 “ drive for 2.88MB, 1.44MB or 720KB diskette
• 5.25” drive for 1.2MB or 360KB diskette
• Support 3-mode drive

Hard Disk Drive
• 3.5-in., 1-in. height IDE drive. (3.5-in may be in
acoustic mounting bracket), and 7200rpm.

• 128 KB “look-ahead” cache memory inside the
hard disk drive.

• Average and minimum 12 ms seek time, access
time varies for the hard disk drive and the hard
disk drive manufacturer.

IBM Desktop System HMM

DVD-ROM Drive
• 5.25-in. high-performance, 8X/40X DVD-ROM
IDE/AT drive.

• Read data and audio play from standard, mini
DVD-ROM and audio compact discs (audio CDs).
DVD media supported on DVD models.

Multimedia
• A pair of external active speakers with a power
adapter or a pair of passive speakers.

• Noise canceling microphone available.

Power Management
• Support both ACPI (Advanced Configuration and
Power Interface) and legacy (APM) power
management.

• ACPI v1.0 and APM v1.2 compliant
• CPU clock throttling and clock stop control for
complete ACPI S1 and S5 state support

• PCI bus clock run, Power Management enable
(PME) control, PCI/CPU color generator stop
control.

• Power-on Switch must support Soft-Off and
Full-Off.
- Touch for 1 second or less to put system on
Suspend state.
- Touch and hold for 4 seconds to put system on
Full-Off state (Power Supply standby remains).

• System enters standby mode if any of following
conditions are met:
- Execute standby from Windows 98 Start menu
- Press system power button if it sets to act as
standby function
- System is idle and the standby timer set in the
Windows 98 Power Management Property
elapses

• 8 bytes of BIOS scratch register

General Information 5

Power Supply
• PC-98 compatible 145W ATX power supply
• Switchable high/low voltage selection

Internal Cabling
• Two 40-pin ribbon cables for hard disk drives and
CD/DVD-ROM drive.

• One 34-pin ribbon cable for AT diskette drive.
• One 4-pin (2-wire) cable for hard disk drive
light-emitting diode (LED).

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

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

Monitor (Not included with some models)
• Super Video Graphics Array (SVGA) monitor.
• VESA power saving mode compliant.
• Connector for a detachable grounded 3-wire
power cord

• 1.8-m (5.8-ft.) signal cable attached
• Auto-sensing power input for 100 Vac to 240 Vac
• 15" (13.7" viewable image size) monitor
- 0.28-mm dot pitch
- Automatic scanning horizontal frequencies from
30 KHz to 54 KHz or 30 KHz to 69 KHz
(for Japan)
- Vertical frequencies between 50 Hz and 120 Hz.
- DDC2A/B or DDC1/2B+ support (for Japan)
- OSD (On-Screen Display) menu (for Japan)

• 17" (15.7" viewable image size) monitor
- 0.28-mm or 0.27-mm dot pitch (for Japan)
- Automatic scanning horizontal frequencies from
30 KHz to 69 KHz or 30 KHz to 72 KHz
(for Japan)
- Vertical frequencies between 50 Hz and 120 Hz.
- DDC1/2B+ support and OSD (On-Screen
Display) menu

IBM Desktop System HMM

Keyboard
• 104-key, rubber dome Rapid Access ™II keyboard
with 1.8-m (5.8-ft.) cable

Mouse
• 4 Button PS/2 Sleek or ScrollPoint™II mouse with
1.8-m (5.8-ft.) cable

General Information 7

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

Interface

Expansion slot for
I/O adapter cards

Three PCI (Peripheral Component
Interconnect) v2.2 compatible
expansion slots that operates at 33
MHz bus speed.

Hard disk drives

Four PCI local bus Enhanced IDE
v1.0 compatible hard disk drive
interfaces that support:
- PIO mode up to 6 mode
- DMA 32-bit access
- Ultra 33/66 Synchronous DMA (33/
66M bytes/sec).

DVD-ROM drive

5.25-in. high-performance, 8X/40X
DVD-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 multi
session) format.

Diskette drive

AT diskette interface

Video

Physical interface is compatible with
the IBM Personal System/2 (PS/2)
VGA interface.
Support Accelerated Graphics Port
(AGP)

Modem

One 56.6 Kbps PCI modem adapter
card with data/fax/voice or non-voice
features.

Audio

Compatible to AC99

Pointing device

IBM PS/2-compatible mouse

Keyboard device

IBM PS/2-compatible keyboard

Serial port

Support one high speed NS 16C550
compatible UARTs with send/receive
16 bytes FIFOs
RS232D electrical interface
compliant

IBM Desktop System HMM

Item
Parallel port

Interface
Supports SPP (IBM PC/XT, PC/AT,
PS/2) compatible, EPP (IEEE 1284
compliance), ECP (IEEE 1284
compliance) interface.
IEEE 1284 compliant

Game port

Game port interface for joystick. It
also supports MIDI.

USB

Supports Universal UHCI
Specification for USB 1.1

General Information 9

CMOS Reset
This system does not deny access to Configuration/
Setup Utility, if Administrative Password is not set.
Execute “Load BIOS Default Settings” in BIOS
Configuration/Setup Utility to clear the corrupted
CMOS data. See “Loading Default Settings” on page
16.

IBM Desktop System HMM

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. See “Power-On
password” on page 21 for more information about
how to change, remove and set password in
Configuration/Setup Utility.
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,
follow these steps.
1. Turn off system unit.
2. Unplug power cable from the electrical outlet.
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 jumper setting.
3. Set JP14 to 2-3 position to clear BIOS setting as
original manufacture setting. See “System Board
Jumpers and Connectors” on page 109.
4. Set JP7 back to the 1-2 position to enable
password check process. See “System Board
Jumpers and Connectors” on page 109.
IMPORTANT: To reinstall the password, the user
must enter a password in the Configuration/Setup
Utility. If Enhanced Security is enabled and the
password is forgotten, the system board must be
replaced.

General Information 11

Flash (BIOS) Update Procedure
NOTE: The flash update procedure does not change
the model number and serial number
information in BIOS.
1. Prepare a bootable DOS diskette with
AWDFLASH.EXE, and one XXXXXXX.BIN files
NOTE: The AWDFLASH.EXE are flash utility
programs. The one VXXYYZZ.RN file has the
BIOS checksum information. The
XXXXXXX.BIN is BIOS source code binary file.
2. Insert the diskette and boot from drive A.
WARNING: Do not boot with any memory related
driver such as HIMEM.SYS, EMS.SYS....
3. At the DOS prompt, type A:> AWDAFLASH
XXXXXXX.BIN /PY/SN/CD/CP then press Enter.
4. The program updates the BIOS automatically.
IMPORTANT: Verify the BIOS checksum value shown
on screen is the same as the one in
VXXYYZZ.RN file.
WARNING: Do not turn off the system power while the
BIOS is programming, or the flash ROM will be
destroyed.
5. Power off system after the BIOS is completely
updated.

IBM Desktop System HMM

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 Configuration/Setup Utility main menu. If a
service 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 into the new BIOS ROM.
Follow these steps to input the model number and
serial number to BIOS:
1. Prepare a diskette with DMICFG.EXE file.
2. At the DOS prompt, type A:>DMICFG.exe.
3. When update system product name, at the DOS
prompt type A:>DMICFG.EXE/ type 01 05
[String].
For example:
[String] : Type 2274
type A:>DMICFG.EXE/ type 01 05 “Type
2174”.
NOTE: You can type a maximum of 32 characters. If
you have a string with spaces, type “ “ to quote
the string.
4. When update system serial number, at the DOS
prompt type A:>DMICFG.EXE/ type 01 07 [String].
NOTE: Enter the serial number and press Enter to
continue. You can type a maximum of 32
characters (without spaces).
5. Enter BIOS setting to display and verify your input
product number and serial number information.

General Information 13

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

Working with the Configuration/Setup
Utility Menu
Starting the Configuration/Setup Utility
Follow these steps to enter Setup when the computer
is off:
1. Turn on your monitor.
2. Press and hold F1.
3. Turn on the system unit.
If you have previously set a password, you are
prompted to type in the password after you press the
F1 key. Refer to the Configuration/Setup Utility Main
Menu below.

Configuration/Setup Utility

Se le ct Options:
•
•
•
•
•
•
•
•

Sy st em S u m m a r y
Pr od uc t D a t a
De vi ce s and I/ O Ports
St ar t Options
Da te a n d T ime
Sy st em Security
Ad va nc ed S e t u p
Po we r M a n a g e m e n t S et up
S av e & Ex it S e tup
L oa d Default Se tt in gs
E xi t Without Sa vi ng

↓↑Move

Enter:Select

F1:Help

F10:Save

ESC:Exit

IBM Desktop System HMM

The following table lists specific keys on the keyboard
that will help you move through the Configuration/
Setup Utility Menus:
Keys

Function

Down- or uparrow key

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

Left- or rightarrow key

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.

Press this key if you want help for a
selected menu option.

Esc

After viewing or making changes to
the settings on a menu, press this
key to exit the menu.

Enter

Press this key to choose a
highlighted option from a menu

F10

Press this key if you want to save
the current settings for a line

Press this key if you want to load
the factory default settings from the
selected brackets.

Press this key if you want to restore
item previous setting

Changing Parameter Settings
In the Configuration/Setup Utility Menus, the
configuration information that you can change is
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. Refer to the Configuration/
Setup Utility help for details on the configurable
parameters in each menu.

General Information 15

Save & Exit Settings
After changing any parameter in the Setup
Configuration setting, return to Configuration/Setup
Utility main menu and select Save & Exit Setup to
save all the settings you have changed. Then, exit the
Configuration/Setup Utility menu.

Loading Default Settings
The computer 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.
To load the default settings, follow these steps:
1. Use down-arrow key to select load default settings.
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 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 Configuration/Setup
Utility.
You must load the Setup default settings in the
following instances:

• When you replace the system battery.
• When you customize the system configuration
settings and some resource assignments conflict
causing the computer to stop responding.

IBM Desktop System HMM

Exiting Without Saving
Press Esc to return to the Main Menu when you have
finished viewing settings and making changes. Fro
this location, you can exit Setup but without saving
your changes.

Viewing System Information, and
Product Data
To view general hardware information about your
computer, select the System Summary option fro
the Configuration/Setup Utility main menu. The items
displayed in the System Summary 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
machine type/model, flash EEPROM revision level,
system serial number, BIOS version, BIOS date, and
BIOS mode, select the Product Data option from the
Configuration/Setup Utility main menu. Like in the
System Summary menu, the items displayed are not
configurable.

Devices and I/O ports
If you install USB devices, video, IDE drives, audio, or
network drive, BIOS auto-detects the presence of
these devices. Enter Configuration/Setup Utility to
identify or verify the type of drive installed in the
computer.

Diskette Drive A
This option displays the size and storage capacity of
the currently installed diskette drive. The default is
1.44 MB, 3.5 in..

Diskette Drive B
This option displays the size and storage capacity of
the currently installed diskette drive. Empty drive
bays are indicated with a “None” default setting.

General Information 17

Serial Port Setup
Onboard Serial Port 1
It comes with one 9-pin serial ports. This parameter
will be allowed to set Auto, Disabled, or the base
address such as 3F8/IRQ4, 2F8/IRQ3, 3E8/IRQ4, or
2E8/IRQ3 for serial port. The default is set to Auto.

Parallel Port Setup
Onboard Parallel Port
Your computer comes with one parallel port. This
parameter shows the base address to activate the
parallel port. The default base address is 378h and
the default IRQ is 7.
Onboard Parallel Mode
There are four selection for this parameter Normal,
EPP, ECP, ECP/EPP. The default setting is Normal.
ECP Mode Use DMA
When Onboard parallel Mode is set to ECP or ECP/
EPP, this parameter becomes configurable.
Otherwise, it will be unchangeable and the default
setting is 3.
Parallel Port EPP Type
When Onboard parallel Mode is set to EPP or ECP/
EPP, this parameter becomes configurable.
Otherwise, it will be unchangeable and the default
setting is EPP1.9.

USB Setup
Onboard USB
The item Universal Serial Bus (USB) parameter is
allowed to set as Enabled and Disabled . The default
setting is Enabled.
USB Keyboard Support
The default setting is set to Disabled while the
parameter Onboard USB is Enabled. If Onboard
USB is set to Disabled, this item is not configuable.

IBM Desktop System HMM

USB Mouse Support
This parameter enables or disables the use of a USB
keyboard outside of Windows. The default is
Disabled. It is not configurable if Onboard USB is set
to Disabled.

IDE Drives Setup
IDE Prefetch Mode
The default setting is Enabled. IDE prefetch mode
can improve performance of your system for fast
drive accesses. If install a primary and/or secondary
add-in IDE interface, set this field to Disabled if the
interface does not support prefetch.

Audio Setup
Onboard Sound
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.
Onboard Legacy Audio
This parameter enables or disables the onboard
audio controller chipset to function in DOS
environment. The default is Enabled.
IMPORTANT: When onboard legacy audio is set to
Enabled, the below six parameters can be
configurabled as I/O base address and IRQ
assignment and so on.
Sound Blaster
The default is Disabled.
SB I/O Base Address
The default is set to 220H.
SB IRQ Select
The default is IRQ5.
MPU-401 --Enabled
The default is Enabled.

General Information 19

MPU-401 I/Q Address
NOTE: The default is 330-333H
Game Port (200-207H)
NOTE: The default is Enabled.

Startup Options
From the Configuration/Setup Utility main menu,
select Start Options to view or change start-up
configuration settings.

Startup Sequence
The startup sequence is used when the system is
powered on by the power switch. The startup device
will include Floppy, LS120, HDD-0, SCSI, CDROM,
HDD-1, HDD-2, HDD-3, ZIP100, LAN and Disabled.
First Boot Device
The default is set to Floppy.
Second Boot Device
The default setting is HDD-0.
Third Boot Device
The default is CD-ROM.
Boot Other Device
The default value is Enabled.

Keyboard NumLock Status
This parameter displays when the NumLock function
on the keyboard turns on automatically each time you
turn your computer on. You can set this to On or Off.
The default is On.

Disketteless Operation
When enabled, the BIOS issues the seek command
to the diskette drive during POST to move diskette
drive head forward and backward. The default is
enabled.

IBM Desktop System HMM

Keyboardless Operation
When enabled, the BIOS issues the seek command
to the keyboard to move faster duringPOST. The
default is enabled.

Power On Self Test
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.

Date and Time
From the Configuration/Setup Utility 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.
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 downarrow key to highlight a field. The date and time are
saved as you type it.

Power-On password
Select this parameter and press the down 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. Press F1 to enter Configuration/Setup Utility.
2. From the Configuration/Setup Utility main menu,
select System Security and then [Power-On
Password].
3. Highlight the [Power-On Password] parameter and
press the Enter key to display the Power-On
General Information 21

Password window.
4. Type a password consisting of up to eight
characters, then press Enter.
5. Retype the password then press Enter.
6. Press Enter again to confirm the setting of the
password. Pressing Esc aborts the password
setting.
After pressing Enter, the Power-On Password
window disappears. The [Power-On Password]
parameter automatically is set completely.
7. Press Esc to return to Configuration/Setup Utility
main menu.
8. Press Esc to exit Setup and reboot the system.
Answer Yes when prompted to save settings.
The next time you turn on the system, and If you
press F1 during POST to enter Configuration/Setup
Utility, you must key in the password.
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, refer to “Power-On Password” on page 11
about how to set the hardware jumper to clear
password check.
Changing the Power-On Password
1. Enter Configuration/Setup Utility.
2. Key in your current password when prompted.
3. From the Configuration/Setup Utility main menu,
select System Security, then [Power-On
Password] Options.
4. Type in a new password then press Enter.
5. Retype the new password then press Enter.
6. Press Esc twice to return to the Configuration/
Setup Utility main menu.
7. Press Save Settings to save the password and
press Exit to exit Configuration/Setup Utility menu,
and then reboot the system.
Delete Power-On Password
1. Enter Configuration/Setup Utility and select
System Security Options, then [Power-On
password] Options.
2. Leave empty on Power-on password windows,

IBM Desktop System HMM

and then press Enter. The message appears on
the screen as below:
“PASSWORD DISABLED!!!“
Press any key to continue ........
3. Return to Configuration/Setup Utility main menu.
4. Select Save and Exit Setup to save and exit
Setup and reboot the system.

Administrator Password
IMPORTANT: When both Power-On password and
Administrator password are setup with
password, you must enter Power-On password
to get in the Configuration/Setup Utility. All the
setting in the BIOS will not be configurable.
Otherwise, after typing in administator
password and enter the Configuration/Setup
Utility menu, you can change all the Setup
settings.
For the basic administrator password setting, follow
the same rule with Power-On Password to set up,
change, or delete a password.

Advanced Setup
IMPORTANT: Items on the following menus control
advanced hardware features. If they are
configured incorrectly, the system might
malfunction.

Cache Control
CPU Internal Cache
This parameter enables or disables the first-level or
internal memory, that is, the memory integrated into
the CPU. The default setting is Enabled.
External Cache
This parameter enables or disable the external cache
is incorporated in the CPU module.

ROM Shadowing
Video BIOS Shadow
The default is Enabled. Video BIOS Shadow means
to copy video display card BIOS into the DRAM area.
This enhances system performance because DRA
access time is faster than ROM.
General Information 23

IMPORTANT: These six items are for shadowing
ROM code on other expansion cards. Before
you set these parameters, you need to know
the specific addresses of that ROM code. If you
do not know this information, enable all the
ROM shadow settings.
C8000-CBFFF Shadow
The default is Disabled.
CC000-CFFFF Shadow
The default is set to Disabled.
D0000-D3FFF Shadow
The default is Disabled.
D4000-D7FFF Shadow
The default is Disabled.
D8000-DBFFF Shadow
The default is Disabled.
DC000-DFFFF Shadow
The default is set to Disabled.

Power Management Setup
ACPI function
The ACPI (Advanced Configuration and Power
Interface) feature enables the operating system to
monitor and control the amount of power supplied to
each device attached to the system. When enabled,
ACPI uses the OS (operating system) to turn off the
peripheral devices (such as a CD-ROM) that are not
in use. The default setting is Enabled.

APM
Power Management
This parameter allows you to select the type (or
degree) of power saving such as User Define, Min.
Saving, and Max. Saving as well as is directly
effected on the following modes HDD Power Down,
Doze Mode and Suspend Mode.

IBM Desktop System HMM

The default of Power Management is set to User
Define, so it allows you to set each mode individually.
HDD Power Down
Whatever Power Management is set, the ranges are
from 1 min. to 15 min. and Disabled. The default is
Disabled.
Doze Mode
While Power Management is set to User Define, this
ranges are from 1 min. to 1 hour. and Disabled. The
default is Disabled.
While Power Management is set to Min Saving, this
parameter will be 1 min.
While Power Management is set to Max Saving, this
parameter will be 1 hour.
Suspend Mode
While Power Management is set to User Define, this
ranges are from 1 min. to 1 hour. and Disabled. The
default is Disabled.
While Power Management is set to Min Saving, this
parameter will be 1 min.
While Power Management is set to Max Saving, this
parameter will be 1 hour.
PM Control by APM
When set to Yes, an Advanced Power Management
device will be activated to enhance the Max. Power
Saving mode and stop the CPU internal clock.
When set to No, the Max. Power Saving is not
enabled.
Video Off Option
Based on an inactivity time-out, the system will enter
power saving management modes. There are three
modes, Always On, Suspend -> Off, and All Modes ->
Off, to determine whether turn off the monitor. The
default is Suspend -> Off.

General Information 25

Video Off Method
This determines the manner in which the monitor is
blanked. The default is set to V/H SYNC+Blank.
When V/H SYNC+Blank is chosen, this selection will
cause the system to turn off the vertical and
horizontal synchronization ports and write blanks to
the video buffer.
The parameter is set to DPMS Support, it will initial
display power management signaling.
When set to Blank Screen, this option only writes
blanks to the video buffer.
Activity Monitor
VGA The default is OFF. When set to On, you can
set the LAN to awaken the system.
LPT & COM When LPT/COM is selected, any
activity from one of the listed system peripheral
devices or IRQs wakes up the system. LPT/COM is
selected as the default.
HDD & FDD When the HDD & FDD is set to On, any
activity from one of the listed system peripheral
devices wakes up the system. The default is On.
PCI Master When PCI Master is set to On, any
activity from one of the list system peripheral devices
wakes up the system. The default is Off.
Primary INTR
This item is used to enable or disable the detection of
IRQ3-15 or NMI interrupt events for power down state
transition. Normally, this is applied to the network
card. The default is On.
IMPORTANT: The following are used to enable or
disable the IRQ resources which assign each
system interrupt a type, depending on the type
of device using the interrupt.
IRQ3 (COM2) The default is Enabled.
IRQ4 (COM1) The default is Enabled.
IRQ5 (LPT2) The default is Enabled.
IRQ6 (Floppy Disk) The default is Enabled.
IRQ7 (LPT 1) The default is Enabled.

IBM Desktop System HMM

IRQ8 (RTC Alarm) The default is Enabled.
IRQ9 (IRQ2 Redir) The default is Disabled.
IRQ10 (Reserved) The default is Disabled.
IRQ11 (Reserved) The default is Disabled.
IRQ12 (PS/2 Mouse) The default is Enabled.
IRQ13 (Coprocessor) The default is Enabled.

Automatic Power On
Power On by PCI Card
This option allows the user to boot from the PCI
device after the system is turned on. The default is
Disabled.
Modem Ring Resume
This parameter enables or disables an input signal on
the serial Ring Indicator (RI) line (an incoming call on
the modem) to awaken the system from a soft off
state. The default is Disabled.
RTC Alarm Resume.
When Enabled, you can set the date and time at
which the RTC (real-time clock) alarm wakes the
system from suspend mode. The default is Disabled.
Date (Month)
When RTC Alarm Resume is set to Disabled, it is not
configurable.
Resume Time (hh:mm:ss)
When RTC Alarm Resume is set to Disabled, it is not
configurable.
Soft-Off by PWRBTW
When the power button is pressed for more than 4
seconds, it forces the system to enter the Soft-Off
state when the system has “hung“. The default is set
to Instant-Off.

ACPI Suspend Type
When ACPI mode is set to S1(POS), all the
components are working normally, only the processor

General Information 27

is in suspend state. When it is set to S3(STR), only
the system memory is working, the rest of the
components are in suspend state. The default is
S3(STR).

IBM Desktop System HMM

Specifications
Dimension (width x depth x height)
• System unit: 190mm x 370 mm x 384 mm

Weight
• System unit: 12.7kg ( 28lb)

Environmen
• Temperature for system unit:
- Operating: 10° to 35°C (50° to 95°F)
- Non-operating: -10 ° to 60°C (14° to 140°F)
: -20 ° to 60 °C (-4° to 140 °F)
(Storage package)

• Humidity for system unit:
- Operating: 20% to 80% RH
- Non-operating: 20% to 80% RH, unpacked
:20% to 80% RH, Storage package

• Vibration
- Operating : 5~16.2 Hz ; 0.38mm (peak to peak)
16.2~250 Hz ; 0.2 G
- Non-operating : 5~27.1 Hz; 0.6G
27.1~50 Hz; 0.4mm(peak to peak)
50~500 Hz; 2.0 G

Power consumption
- System unit: Maximum 95 Watts

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

• Low Range: 100 to 120 Vrms
• High Range: 200 to 240 Vrms

General Information 29

Operating Requirements
All machines require two power inputs: one for the
system unit and one for the monitor display.
The system unit comes with a voltage selector switch,
allowing selection of voltage of either 115 Vac or 230
Vac. This switch must be in the 230 Vac position
when the machine is plugged into a 230 Vac electrical
outlet.
The required power input for the monitor (Not
included with some models) shipped with the system
unit is auto-sensing type and does not require any
voltage switch adjustment.

IBM Desktop System HMM

Check Procedures
Introduction ..........................................................32
Start .....................................................................33
Index of Symptoms, Messages, Error Codes,
or Beeps ...............................................................38
Troubleshooting ................................................... 54
Factory-Installed Storage Devices ................ 54
Factory-Installed Modem Card ............................. 58
Audio (Not Supported by Diagnostics Program) .. 60
CD/DVD-ROM Drive ............................................ 63
Memory ................................................................65
Keyboard ..............................................................66
Mouse ..................................................................67
Power Supply .......................................................69
Monitor .................................................................72
Undetermined Problems ...................................... 74

Check Procedures 31

Introduction
This chapter contains the check procedures used to
diagnose the causes of product failures. The
diagnostic information consists of:
Start: This is the starting point for any diagnostic
action. Based on high-level symptoms, the check
procedure directs you to more detailed procedures to
help resolve machine failures.
Index of Symptoms, Messages, Error Codes, or
Beeps: The tables for 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: When the Start check
procedure or the Index of 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.

IBM Desktop System HMM

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: Replace FRUs ONLY when it is
determined that the error is not a result of
software, loose contacts, or dirty component
surfaces. Any FRU change should be verified
by running a complete test (“Diagnostics - All
Tests” in PC-Doctor diagnostics program).
This book comes with a diagnostic program diskette.
This diskette should be used ONLY with 2274
Service Level A (SL-A) IBM Personal Computers.
Do not use this diskette on other models.
POST error codes and error messages are displayed
on the screen after the IBM logo. Meanwhile, error
beeps could be issued to help diagnose syste
problem. Please refer to “Index of Symptoms,
Messages, Error Codes, or Beeps” on page 38 for
additional help.
All voltages in the check procedures are positive
unless otherwise indicated. Use frame ground for all
voltage checks unless otherwise specified.
IMPORTANT: There is a Power Override switch
located at the back of the machine, just above
the connector for the power cable. If the
system does not power on after pressing the
power button situated on the front of the
machine, please check the power cable and
the Power Override switch. If the Power
Override switch is switched on, no power is
supplied to the system.
NOTE: If the check procedures instruct you to replace
a 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.

Check Procedures 33

The hard disk drive contains pre-loaded software. Be
sure to reload the software on the primary hard disk
drive (Drive C) when replacing it.
IMPORTANT: 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. Ask the customer to back up
any additional software from the hard disk
drive before you reload the software.
How to Diagnose Combined FRUs: If an adapter or
device consists of more than one FRU, any of the
FRUs might cause an error code. Before replacing
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 a 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 Configuration/Setup
Utility screen to an attached printer, press Print
Screen key while the following screen is displayed.
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” in
Configuration/Setup Utility.

• To disable or reset the power-on password, see
“Power-On Password” on page 11.

• Disconnect all external cables and devices

IBM Desktop System HMM

including speakers and microphone from the
system unit, except for the keyboard, mouse, and
monitor.

• Power off the system unit (unplug the power cord)
before moving it or when replacing FRUs.

• Remove all adapter cards, except for the factoryinstalled modem adapter card and any other IB
Personal Computer factory-installed adapter
cards.

• Disconnect all drives except:
- 3.5-in. diskette drive
- Hard disk drive
- IBM Personal Computer 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 127 for pin identification.

• Ensure correct monitor refresh rate.
• Note any symptoms, messages, error codes, or
beeps.

• Make sure that there are no diskette or CD in the
drives.
002 - 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.

Check Procedures 35

• 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 38.

• End.
005 -

• If the keyboard responds incorrectly, go to
“Keyboard” on page 66.

• If monitor problems appear, such as jittering,
shifting, or being out of focus, go to “Monitor” on
page 72.
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.
008 - DO 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:

IBM Desktop System HMM

- 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
“Parts/Test Point Locations” on page 107.
- 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 38.
- If no error can be detected or the symptom is intermittent, go to “Undetermined Problems” on
page 74.

•

End

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 38.

• If there is no error symptom or the error symptom
is intermittent, go to “Undetermined Problems” on
page 74.

Check Procedures 37

Index of Symptoms, Messages, Error
Codes, or Beeps
How to Use Error Messages: Use the messages,
error codes, and beeps 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 in
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 2-3 Error Symptoms
List” on page 45.
CAUTION: When you have deemed it necessary to
replace a FRU, and have done 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 Diagnostics, then
select and execute All Tests from PC-Doctor).
POST: Some diagnostic aids are resident in the
machine, such as the Power-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 Configuration/
Setup Utility. “Startup Options” on page 20.
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.
WARNING: Remember that POST does not test all
areas, but only those that allow the system to
operate well enough to run the diagnostics
program.
Table 2-1 lists BIOS error codes, messages, and their
possible causes. Table 2-2 lists BIOS beeps and their
possible causes. Table 2-3 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 “Start” on page 33.

IBM Desktop System HMM

If you are unable to correct the problem using these
two index tables, go to “Undetermined Problems” on
page 74.
NOTE:
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 and message, use
“Table 2-1 POST Error Codes and Messages List”
on page 40 to diagnose system problems.
3. If you cannot run the diagnostics program tests but
did receive a POST error beeps, use See “Table 22 BIOS Error Beeps List” on page 44 to diagnose
system problems.
4. If you did not receive any error message, look for a
description of your error symptoms in “Table 2-3
Error Symptoms List” on page 45.
IMPORTANT: 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.
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 74.

Check Procedures 39

Table 2-1 POST Error Codes and Messages List
NOTE: To diagnose a problem, first find the BIOS error
messages or codes 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.
BIOS Error Codes,
Messages
Real Time Clock Error
CMOS Battery Has Failed
CMOS Checksum Error

Action/FRU
1. Enter Configuration/
Setup Utility and load the
default settings.
2. CMOS battery.
3. System board.

Disk Boot Failure, Insert
System Disk And Press
Enter

1. Insert a bootable floppy
disk into floppy drive.
2. Check if floppy drive fails.
3. Check if system board
fails.

Diskette Drives Or Types
Mismatch Error-Run Setup

1. Enter Configuration/
Setup Utility to
reconfigure the drive type
correctly.

Display Switch Is Set
Incorrectly

1. Enter Configuration/
Setup Utility to
reconfigure Video
Setting.

Display Type Has Changed
Since Last Boot

1. Enter Configuration/
Setup Utility to configure
new display type.
2. Adapter Card

EISA Configuration
Checksum Error

1. No ESIA slot available.

Please Run EISA
Configuration Utility
EISA Configuration Is Not
Complete

1. No ESIA slot available.

Please Run EISA
Configuration Utility

IBM Desktop System HMM

Action/FRU
1. Enter Configuration/
Setup Utility to load the
default setting
2. IDE hard disk drive power
3. IDE hard disk drive cable/
connection
4. IDE hard disk drive

Error Initializing Hard Disk
Controller

1. Enter Configuration/
Setup Utility to load the
default setting
2. Check IDE drive jumper
See “3.5-In. Hard Disk
Drive Jumper Settings”
on page 117.
3. IDE hard disk drive power
4. IDE hard disk drive cable/
connection
5. IDE hard disk drive
6. System board

Floppy Disk CNTRLR Error
Or No CNTRLR Present

1. Enter Configuration/
Setup Utility to load the
default setting
2. Diskette drive cable/
connection
3. Diskette drive
4. System board

Invalid EISA Configuration

1. No ESIA slot available

Please Run EISA
Configuration Utility
Keyboard Error or No
Keyboard Present

1. Re-connect keyboard
2. Enter Configuration/
Setup Utility and load the
default settings
3. keyboard
4. System board

Check Procedures 41

Table 2-1 POST Error Codes and Messages List
NOTE: To diagnose a problem, first find the BIOS error
messages or codes 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.
BIOS Error Codes,
Messages
Memory Address Error at
.......
Memory Parity Error
at.............
Memory Size Has Changed
Since Last Boot
Memory Verify Error
at............

Action/FRU
1. Insert the memory
modules in the DIMM
sockets properly, then
reboot the system
2. Memory module. See
“005 -” on page 65 to
replace memory module
3. System board

RAM Parity Error-Checking
For Segment..
Offending Address Not
Found
Offending Segment

1. Enter Configuration/
Setup Utility and load the
default settings.
2. Remove all adapter cards
that are NOT factoryinstalled, then reboot the
system.
3. System board

Press A Key To Reboot

1. Message Only

Should Be Empty But EISA
Board Found

1. No ESIA slot available

Please Run EISA
Configuration Utility
Should Have EISA Board
But Not Found

1. No ESIA slot available

Please Run EISA
Configuration Utility
Slot Not Empty

1. No ESIA slot available

System Halted, (CTRL-ALT- 1. Message Only
DEL) To Reboot.....
Wrong Board in Slot

1. No ESIA slot available

Please Run EISA
Configuration Utility

IBM Desktop System HMM

Action/FRU
1. Re-connect floppy disk
drive
2. Enter Configuration/
Setup Utility and load the
default settings.
3. Floppy disk drive
4. System board

Floppy Disk(s) Fail (40)

1. Re-connect floppy disk
drive
2. Enter Configuration/
Setup Utility and load the
default settings.
3. Floppy disk drive

Hard Disk(s) Fail (80)
Hard Disk(s) Fail (40)

1. Enter Configuration/
Setup Utility and load the
default setting
2. Check IDE drive jumper.
See “3.5-In. Hard Disk
Drive Jumper Settings”
on page 117.
3. IDE hard disk drive
power.
4. IDE hard disk drive cable/
connection.
5. IDE hard disk drive.
6. System board

Hard Disk(s) Fail (20)
Hard Disk(s) Fail (10)

1. Enter Configuration/
Setup Utility and load the
default setting
2. IDE hard disk drive
power.
3. IDE hard disk drive cable/
connection.
4. IDE hard disk drive.

Hard Disk(s) Fail (08)

1. Hard disk drive

Check Procedures 43

Action/FRU
1. Enter Configuration/
Setup Utility and load the
default settings.
2. Keyboard
3. System board

Manufacturing POST loop

1. Message only

BIOS ROM Checksum
error-System Halted

1. Clear CMOS and reboot
again.
2. BIOS ROM
3. System board

Memory Test Fail

1. Enter Configuration/
Setup Utility and load the
default settings.
2. Memory
3. System board.

Table 2-2 BIOS Error Beeps List
NOTE: To diagnose a problem, first find the BIOS error
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.

BIOS Error Beeps
(L:long beep, S:short beep)
L-L.... (Repeatedly)
System DRAM has error

Action/FRU
1. Insert the memory
modules in the DIMM
sockets properly, then
reboot the system.
2. Memory module. See
“005 -” on page 65 to
replace memory module.
3. System boar

L-S-S
Video has error

1. Video adapter card
2. System boar

IBM Desktop System HMM

Table 2-3 Error Symptoms List
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.

Error Symptoms

Action/FRU

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.

1. Ensure that the system is
not in power saving mode
and the “Stop CPU clock
in sleep state” is not set
to Yes. See “Power
Management” on page 5.
2. With the system power
on, measure the voltage
of processor fan
connector FN2. Its
reading should be
+12Vdc. See “System
Board Jumpers and
Connectors” on page
109.
3. Processor fan.
4. System board.

Processor test failed.

1. Processor.
2. 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.

1. See “Memory” on page
65.
2. System board

Check Procedures 45

Error Symptoms
Incorrect memory size
shown or repeated during
POST.

Action/FRU
1. Insert the memory
modules in the DIMM
sockets properly, then
reboot the system.
2. Memory module. See
“005 -” on page 65 to
replace memory module.
3. System board.

1. Enter Configuration/
System works but fails to
Setup Utility and load
enter power saving mode
default settings.
when the Power
Management Mode is set to 2. In Windows 98, check
[Enabled], and power
settings in Power
saving timer set in BIOS has
Management Property of
elapsed.
Control Panel.
3. Reload software from
Recovery CD.
System hangs before
system boot.

1. See “Index of Symptoms,
Messages, Error Codes,
or Beeps” on page 38.
2. See “Undetermined
Problems” on page 74

System hangs after system
boot.

1. 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.
2. “Undetermined
Problems” on page 74.

Blinking cursor only; system 1. See “Start” on page 33.
does not work.
2. Diskette/IDE drive
connection/cables
3. Diskette/IDE disk drives
4. See “Undetermined
Problems” on page 74
5. System board
Diskette Drive

NOTE: Ensure that the diskette drive is configured
correctly in Configuration/Setup Utility and its read/
write head is clean before diagnosing any diskette
drive problems.

IBM Desktop System HMM

Error Symptoms
Media and drive are
mismatched.

Action/FRU
1. Ensure that the diskette
drive is configured
correctly in the Disk
Drives of Configuration/
Setup Utility. See “Hard
Disk Drive” on page 4.
2. Ensure that the diskette
drive is correctly
formatted.
3. Diskette drive
connection/cable
4. Diskette drive
5. System board

Diskette drive does not
work.

1. Ensure that the diskette
drive is not set to [None]
in the Disk Drives of
Configuration/Setup
Utility. See “ Hard Disk
Drive” on page 4.
2. Diskette drive power
3. Diskette drive
connection/cable
4. Diskette drive
5. System board

Diskette drive read/write
error.

1. Diskette.
2. Ensure that the diskette
drive is not set to [Write
protect] in the Security
Options of Configuration/
Setup Utility.
3. Diskette drive cable.
4. Diskette drive.
5. System board.

Diskette drive LED comes
on for more than 2 minutes
when reading data.

1. Diskette
2. Diskette drive
connection/cable
3. Diskette drive
4. System board

1. Diskette
Diskette drive LED fails to
light, and the drive is unable 2. Diskette drive power
to access for more than 2
3. Diskette drive
minutes.
connection/cable
4. Diskette drive
5. System board

Check Procedures 47

Error Symptoms
Diskette drive test failed.

Action/FRU
1. Diskette
2. Diskette drive
3. Diskette drive cable
4. System board

Hard Disk Drive

NOTE: Ensure hard disk drive is configured correctly in
Configuration/Setup Utility, cable/jumper are set
correctly before diagnosing any hard disk drive
problems.
Hard disk drive test failed.

1. Enter Configuration/
Setup Utility and Load
default settings.
2. Hard disk drive cable.
3. Hard disk drive.
4. System board.

Hard disk drive format error. 1. Enter Configuration/
Setup Utility and Load
default settings.
2. Hard disk drive cable.
3. Hard disk drive.
4. System board.
Hard disk drive write error.

1. Enter Configuration/
Setup Utility and Load
default settings.
2. Hard disk drive.

Hard disk drive LED fails to
light, but system operates
normally.

1. With the system power
on, measure the voltage
of hard disk LED
connector CN6. The
reading should be:
CN6 HDD Idle /Active
pin-1 pin-1 +5Vdc/ pin-2 pin-2 +5Vdc/0Vdc
pin-3 pin-3 +5Vdc/0Vdc
pin-4 pin-4 +5Vdc/ 2. See “System Board
Jumpers and
Connectors” on page
109.
3. Hard drive LED cable.

IBM Desktop System HMM

Error Symptoms

Action/FRU

CD/DVD-ROM Drive

NOTE: Ensure CD/DVD-ROM drive is configured correctly
in Configuration/Setup Utility, cable/jumper are set
correctly and its laser beam is clean before
diagnosing any CD/DVD-ROM drive problems.
CD/DVD-ROM drive LED
flashes for more than 30
seconds before LED
shutting off.

1. CD/DVD may have dirt or
foreign material on it.
Check with a known good
disc.

Software asks to reinstall
disc.

2. CD/DVD is not inserted
properly.

Software displays a reading 3. CD/DVD is damaged.
CD/DVD error.
CD/DVD-ROM drive LED
doesn't come on but works
normally.

1. CD/DVD-ROM drive

CD/DVD-ROM drive cannot
load or eject when the
system is turned on and its
eject button is pressed and
held.

1. See “CD-ROM
Emergency-exit

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