Lenovo M72Z Hmm Us User Manual All In One (Think Centre) Type 3528

1970-01-01

User Manual: Lenovo M72Z Hmm Us M72z All-in-One (ThinkCentre) - Type 3528 ThinkCentre M72z, 3528

Open the PDF directly: View PDF .
Page Count: 126

Download
Open PDF In Browser	View PDF

ThinkCentre
Hardware Maintenance Manual

Machine Types: 3512, 3528, 3533, 3535, 3536, 3537, 3538, 3539,
3543, 3548, 3549, 3553, 3554, 3556, 3558, and 3559.

ThinkCentre
Hardware Maintenance Manual

Machine Types: 3512, 3528, 3533, 3535, 3536, 3537, 3538, 3539,
3543, 3548, 3549, 3553, 3554, 3556, 3558, and 3559.

Note: Before using this information and the product it supports, be sure to read and understand Chapter 2
“Safety information” on page 3 and Appendix A “Notices” on page 115.

First Edition (May 2012)
© Copyright Lenovo 2012.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software are delivered pursuant a General Services
Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No.
GS-35F-05925.

Contents
Chapter 1. About this manual . . . . . . 1
Important Safety Information . . . . . . . . . .

Chapter 2. Safety information . . . . . . 3
General safety . . . . . . . . . . . .
Electrical safety . . . . . . . . . . .
Safety inspection guide . . . . . . . .
Handling electrostatic discharge-sensitive
devices . . . . . . . . . . . . . .
Grounding requirements . . . . . . . .
Safety notices (multi-lingual translations) .

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

3
3
5

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

5
6
6

Chapter 3. General information . . . .
Specifications . . . . . . . .
Lenovo ThinkVantage Tools . .
Lenovo Welcome. . . . . . .
Lenovo Solution Center . . . .
SimpleTap . . . . . . . . .
Additional information resources

.
.
.
.
.
.

29
29
30
30
30
31

Chapter 4. General Checkout . . . . .

Problem determination tips . . . . . . . . . .

Chapter 5. Troubleshooting and
diagnostics . . . . . . . . . . . . . .
Basic troubleshooting . . . . . . . . .
Troubleshooting procedure . . . . . . .
Troubleshooting . . . . . . . . . . .
Audio problems . . . . . . . . .
CD problems . . . . . . . . . .
DVD problems . . . . . . . . . .
Intermittent problems . . . . . . .
Keyboard, mouse, or pointing device
problems . . . . . . . . . . . .
Monitor problems. . . . . . . . .
Networking problems . . . . . . .
Option problems . . . . . . . . .
Performance and lockup problems . .
Printer problems . . . . . . . . .
Serial port problems. . . . . . . .
Software problems . . . . . . . .
USB problems . . . . . . . . . .
Diagnostics . . . . . . . . . . . . .
Lenovo Solution Center . . . . . .

.
.
.
.
.
.
.

.
.
.
.
.
.
.
.
.
.
.

.
.
.
.
.
.
.

35
36
37
37
38
39
41

.
.
.
.
.
.
.
.
.
.
.

41
43
44
47
48
49
49
50
51
51
51

Chapter 6. Using the Setup Utility
program . . . . . . . . . . . . . . . .

Starting the Setup Utility program . . . . . . .

.
.
.
.
.
.
.
.
.
.
.

.
.
.
.
.
.
.

Viewing and changing settings . . . . . . .
Using passwords. . . . . . . . . . . . .
Password considerations . . . . . . . .
Power-On Password . . . . . . . . .
Administrator Password . . . . . . . .
Hard Disk Password. . . . . . . . . .
Setting, changing, and deleting a password
Enabling or disabling a device . . . . . . .
Selecting a startup device . . . . . . . . .
Selecting a temporary startup device . . .
Selecting or changing the startup device
sequence . . . . . . . . . . . . . .
Exiting the Setup Utility program . . . . . .

.
.
.
.
.
.
.
.
.
.

53
53
54
54
54
54
54
55
55
55

.
.

55
56

Chapter 7. Symptom-to-FRU Index . .

Hard disk drive boot error . .
Power Supply Problems . . .
Beep symptoms . . . . . .
POST error codes . . . . .
Miscellaneous error conditions
Undetermined problems . . .

.
.
.
.
.
.

57
57
57
58
59
60

Chapter 8. Locations . . . . . . . . .

Locating connectors, controls, and indicators
the front of your computer . . . . . . . .
Locating connectors on the rear of your
computer . . . . . . . . . . . . . . .
Locating major FRUs and CRUs . . . . . .
Looking up FRU information . . . . . . .
System board parts and connectors . . . .

.
.
.
.
.
.

on
. .

.
.
.
.

64
66
69
70

Chapter 9. Replacing FRUs . . . . . .

Removing and reinstalling the system stand hinge
cover . . . . . . . . . . . . . . . . . .
Removing and reinstalling the system stand . . .
Removing and reinstalling the monitor stand . . .
Removing and reinstalling the frame stand. . . .
Removing the computer cover . . . . . . . .
Replacing the hard disk drive . . . . . . . . .
Replacing the optical drive . . . . . . . . . .
Removing the VESA mount bracket . . . . . .
Replacing the rear I/O assembly . . . . . . . .
Removing and reinstalling the system board
shield . . . . . . . . . . . . . . . . . .
Replacing the power supply . . . . . . . . .
Replacing the microprocessor fan . . . . . . .
Replacing the heat sink assembly . . . . . . .
Replacing the microprocessor . . . . . . . .

71
73
75
76
79
79
82
83
84
86
87
88
89
91

iii

Replacing the card reader . . . . . .
Opening the system board shield window
Replacing the battery . . . . . . . .
Replacing the inverter . . . . . . . .
Installing or replacing a memory module
Replacing the internal speakers . . . .
Replacing the integrated camera . . .
Replacing the system board . . . . .
Replacing the LCD panel. . . . . . .
Replacing the WI-FI card. . . . . . .
Completing the parts replacement . . .

.
.
.
.
.
.
.
.
.
.
.

Chapter 10. Additional Service
Information . . . . . . . . . . . . .
Security features . . . . . . . .
Hardware controlled Passwords
Operating system password .
Vital product data. . . . . .

.
.
.
.

ThinkCentre Hardware Maintenance Manual

.
.
.
.

94
95
96
97
98
100
101
102
104
108
109

111
.
.
.
.

111
111
111
111

BIOS levels . . . . . . . . . . . . . . .
Flash update procedures . . . . . . . . .
Updating (flashing) the BIOS from a disc . . .
Updating (flashing) the BIOS from your operating
system . . . . . . . . . . . . . . . . .
Recovering from a POST/BIOS update failure .
Power management . . . . . . . . . . .
Automatic configuration and power interface
(ACPI) BIOS . . . . . . . . . . . . .
Automatic Power-On features . . . . . .

.
.
.

111
111
111

.
.
.

112
112
113

.
.

113
113

Appendix A. Notices . . . . . . . . .
Television output notice . . . . . . . . . . .
European conformance CE mark . . . . . . .
Trademarks . . . . . . . . . . . . . . . .

Index. . . . . . . . . . . . . . . . .

115
116
116
116

117

Chapter 1. About this manual
This manual provides service and reference information for ThinkCentre® computers listed on the cover. This
manual is intended only for trained service personnel who are familiar with Lenovo® computer products.
Chapter 7 “Symptom-to-FRU Index” on page 57 and Chapter 10 “Additional Service Information” on page
111 are not specific to any machine type. These chapters are applicable to all ThinkCentre computers.
Before servicing a Lenovo computer product, be sure to read “Important Safety Information” on page 1.
The Symptom-to-FRU Index and Additional Service Information chapters are not specific to any machine
type and are applicable to all ThinkCentre computers.
For major Field Replaceable Units (FRU) locations and Customer Replaceable Unit (CRU) identification,
see Chapter 8 “Locations” on page 63.
For FRU replacement instructions, see Chapter 9 “Replacing FRUs” on page 71.
For FRU part numbers, go to:
http:/www.lenovo.com/serviceparts-lookup

Important Safety Information
Be sure to read all caution and danger statements in this book before performing any of the instructions.
Veuillez lire toutes les consignes de type DANGER et ATTENTION du présent document avant d'exécuter
les instructions.
Lesen Sie unbedingt alle Hinweise vom Typ "ACHTUNG" oder "VORSICHT" in dieser Dokumentation, bevor
Sie irgendwelche Vorgänge durchführen
Leggere le istruzioni introdotte da ATTENZIONE e PERICOLO presenti nel manuale prima di eseguire una
qualsiasi delle istruzioni
Certifique-se de ler todas as instruções de cuidado e perigo neste manual antes de executar qualquer
uma das instruções
Es importante que lea todas las declaraciones de precaución y de peligro de este manual antes de seguir
las instrucciones.

ThinkCentre Hardware Maintenance Manual

Chapter 2. Safety information
This chapter contains the safety information that you need to be familiar with before servicing a computer.

General safety
Follow these rules to ensure general safety:
• Observe good housekeeping in the area of the machines during and after maintenance.
• When lifting any heavy object:
1. Ensure you can stand safely without slipping.
2. Distribute the weight of the object equally between your feet.
3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift.
4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the
muscles in your back.
Do not attempt to lift any objects that weigh more than 16 kg (35 lb) or objects that you think are
too heavy for you.
• Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe.
• Before you start the machine, ensure that other service representatives and the customer's personnel are
not in a hazardous position.
• Place removed covers and other parts in a safe place, away from all personnel, while you are servicing
the machine.
• Keep your tool case away from walk areas so that other people will not trip over it.
• Do not wear loose clothing that can be trapped in the moving parts of a machine. Ensure that your sleeves
are fastened or rolled up above your elbows. If your hair is long, fasten it.
• Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip, approximately
8 centimeters (3 inches) from the end.
• Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing.
Remember: Metal objects are good electrical conductors.
• Wear safety glasses when you are: hammering, drilling, soldering, cutting wire, attaching springs, using
solvents, or working in any other conditions that might be hazardous to your eyes.
• After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device
that is worn or defective.
• Reinstall all covers correctly before returning the machine to the customer.

Electrical safety

CAUTION:
Electrical current from power, telephone, and communication cables can be hazardous. To avoid
personal injury or equipment damage, disconnect the attached power cords, telecommunication
systems, networks, and modems before you open the computer covers, unless instructed otherwise
in the installation and configuration procedures.
Observe the following rules when working on electrical equipment.
© Copyright Lenovo 2012

Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft
material that does not insulate you when working with live electrical currents. Many customers have, near
their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges.
Do not use this type of mat to protect yourself from electrical shock.
• Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical
accident occurs, you can then operate the switch or unplug the power cord quickly.
• Do not work alone under hazardous conditions or near equipment that has hazardous voltages.
• Disconnect all power before:
– Performing a mechanical inspection
– Working near power supplies
– Removing or installing Field Replaceable Units (FRUs)
• Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer
to power-off the wall box that supplies power to the machine and to lock the wall box in the off position.
• If you need to work on a machine that has exposed electrical circuits, observe the following precautions:
– Ensure that another person, familiar with the power-off controls, is near you.
Remember: Another person must be there to switch off the power, if necessary.
– Use only one hand when working with powered-on electrical equipment; keep the other hand in your
pocket or behind your back.
Remember: There must be a complete circuit to cause electrical shock. By observing the above rule,
you may prevent a current from passing through your body.
– When using a tester, set the controls correctly and use the approved probe leads and accessories for
that tester.
– Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as
metal floor strips and machine frames.
Observe the special safety precautions when you work with very high voltages; these instructions are in
the safety sections of maintenance information. Use extreme care when measuring high voltages.
• Regularly inspect and maintain your electrical hand tools for safe operational condition.
• Do not use worn or broken tools and testers.
• Never assume that power has been disconnected from a circuit. First, check that it has been powered-off.
• Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors,
nongrounded power extension cables, power surges, and missing safety grounds.
• Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is
conductive; such touching can cause personal injury and machine damage.
• Do not service the following parts with the power on when they are removed from their normal operating
places in a machine:
– Power supply units
– Pumps
– Blowers and fans
– Motor generators
and similar units. (This practice ensures correct grounding of the units.)
• If an electrical accident occurs:
– Use caution; do not become a victim yourself.
– Switch off power.
– Send another person to get medical aid.

ThinkCentre Hardware Maintenance Manual

Safety inspection guide
The intent of this inspection guide is to assist you in identifying potentially unsafe conditions on these
products. Each machine, as it was designed and built, had required safety items installed to protect users
and service personnel from injury. This guide addresses only those items. However, good judgment should
be used to identify potential safety hazards due to attachment of features or options not covered by this
inspection guide.
If any unsafe conditions are present, you must determine how serious the apparent hazard could be and
whether you can continue without first correcting the problem.
Consider these conditions and the safety hazards they present:
• Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal
electrical shock).
• Explosive hazards, such as a damaged CRT face or bulging capacitor
• Mechanical hazards, such as loose or missing hardware
The guide consists of a series of steps presented in a checklist. Begin the checks with the power off, and
the power cord disconnected.
Checklist:
1. Check exterior covers for damage (loose, broken, or sharp edges).
2. Power-off the computer. Disconnect the power cord.
3. Check the power cord for:
a. A third-wire ground connector in good condition. Use a meter to measure third-wire ground
continuity for 0.1 ohm or less between the external ground pin and frame ground.
b. The power cord should be the appropriate type as specified in the parts listings.
c. Insulation must not be frayed or worn.
4. Remove the cover.
5. Check for any obvious alterations. Use good judgment as to the safety of any alterations.
6. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or
other liquids, or signs of fire or smoke damage.
7. Check for worn, frayed, or pinched cables.
8. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.

Handling electrostatic discharge-sensitive devices
Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to
electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects.
Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the
person handling the part are all at the same charge.
Notes:
1. Use product-specific ESD procedures when they exceed the requirements noted here.
2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.
When handling ESD-sensitive parts:
• Keep the parts in protective packages until they are inserted into the product.
• Avoid contact with other people while handling the part.
Chapter 2. Safety information

• Wear a grounded wrist strap against your skin to eliminate static on your body.
• Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when
you are wearing a wrist strap.
• Use the black side of a grounded work mat to provide a static-free work surface. The mat is especially
useful when handling ESD-sensitive devices.
• Select a grounding system, such as those listed below, to provide protection that meets the specific
service requirement.
Note: The use of a grounding system is desirable but not required to protect against ESD damage.
– Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground.
– Use an ESD common ground or reference point when working on a double-insulated or
battery-operated system. You can use coax or connector-outside shells on these systems.
– Use the round ground-prong of the ac plug on ac-operated computers.

Grounding requirements
Electrical grounding of the computer is required for operator safety and correct system function. Proper
grounding of the electrical outlet can be verified by a certified electrician.

Safety notices (multi-lingual translations)
The caution and danger safety notices in this section are provided in the following languages:
• English
• Arabic
• Brazilian/Portuguese
• Chinese (simplified)
• Chinese (traditional)
• French
• German
• Hebrew
• Italian
• Korean
• Spanish

DANGER
Electrical current from power, telephone and communication cables is hazardous.
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.
• Connect all power cords to a properly wired and grounded electrical outlet.
• Connect to properly wired outlets any equipment that will be attached to this product.
6

ThinkCentre Hardware Maintenance Manual

• When possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of fire, water, or structural damage.
• Disconnect the attached power cords, telecommunications systems, networks, and modems
before you open the device covers, unless instructed otherwise in the installation and configuration
procedures.
• Connect and disconnect cables as described in the following tables when installing, moving, or
opening covers on this product or attached devices.
To Connect

To Disconnect

1. Turn everything OFF.

2. First, attach all cables to devices.

2. First, remove power cords from outlet.

3. Attach signal cables to connectors.

3. Remove signal cables from connectors.

4. Attach power cords to outlet.

4. Remove all cables from devices.

5. Turn device ON.

CAUTION:
When replacing the lithium battery, use only Part Number 45C1566 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 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 of the battery as required by local ordinances or regulations.

CAUTION:
When laser products (such as CD-ROMs, DVD-ROM drives, fiber optic devices, or transmitters) are
installed, note the following:
• Do not remove the covers. Removing the covers of the laser product could result in exposure to
hazardous laser radiation. There are no serviceable parts inside the device.
• Use of controls or adjustments or performance of procedures other than those specified herein
might result in hazardous radiation exposure.
DANGER
Some laser products 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.

Chapter 2. Safety information

≥18 kg (37 lbs)

≥32 kg (70.5 lbs)

≥55 kg (121.2 lbs)

CAUTION:
Use safe practices when lifting.

CAUTION:
The power control button on the device and the power switch on the power supply do not turn off
the electrical current supplied to the device. The device also might have more than one power
cord. To remove all electrical current from the device, ensure that all power cords are disconnected
from the power source.

2
1

ThinkCentre Hardware Maintenance Manual

Chapter 2. Safety information

≥18 kg (37 lbs)

≥32 kg (70.5 lbs)

≥55 kg (121.2 lbs)

2
1

PERIGO

ThinkCentre Hardware Maintenance Manual

A corrente elétrica proveniente de cabos de alimentação, de telefone e de comunicações é perigosa.
Para evitar risco de choque elétrico:
• Não conecte nem desconecte nenhum cabo ou execute instalação, manutenção ou reconfiguração
deste produto durante uma tempestade com raios.
• Conecte todos os cabos de alimentação a tomadas elétricas corretamente instaladas e aterradas.
• Todo equipamento que for conectado a este produto deve ser conectado a tomadas corretamente
instaladas.
• Quando possível, utilize apenas uma das mãos para conectar ou desconectar cabos de sinal.
• Nunca ligue nenhum equipamento quando houver evidência de fogo, água ou danos estruturais.
• Antes de abrir tampas de dispositivos, desconecte cabos de alimentação, sistemas de telecomunicação,
redes e modems conectados, a menos que especificado de maneira diferente nos procedimentos de
instalação e configuração.
• Conecte e desconecte os cabos conforme descrito na tabela apresentada a seguir ao instalar, mover ou
abrir tampas deste produto ou de dispositivos conectados.
Para Conectar:

Para Desconectar:

1. DESLIGUE Tudo.

2. Primeiramente, conecte todos os cabos aos
dispositivos.

2. Primeiramente, remova os cabos de alimentação das
tomadas.

3. Conecte os cabos de sinal aos conectores.

3. Remova os cabos de sinal dos conectores.

4. Conecte os cabos de alimentação às tomadas.

4. Remova todos os cabos dos dispositivos.

5. LIGUE os dispositivos.

CUIDADO:
Ao substituir a bateria de lítio, utilize apenas uma bateria com Número de Peça 45C1566 ou um tipo
de bateria equivalente recomendado pelo Se o seu sistema possui um módulo com uma bateria de
lítio, substitua-o apenas por um módulo do mesmo tipo e do mesmo fabricante. A bateria contém lítio
e pode explodir se não for utilizada, manuseada ou descartada de maneira correta.
Não:
• Jogue ou coloque na água
• Aqueça a mais de 100°C (212°F)
• Conserte nem desmonte
Descarte a bateria conforme requerido pelas leis ou regulamentos locais.

PRECAUCIÓN:
Quando produtos a laser (como unidades de CD-ROMs, unidades de DVD-ROM, dispositivos de fibra ótica
ou transmissores) estiverem instalados, observe o seguinte:

Chapter 2. Safety information

• Não remova as tampas. A remoção das tampas de um produto a laser pode resultar em exposição
prejudicial à radiação de laser. Não existem peças que podem ser consertadas no interior do dispositivo.
• A utilização de controles ou ajustes ou a execução de procedimentos diferentes dos especificados aqui
pode resultar em exposição prejudicial à radiação.
PERIGO
Alguns produtos a laser contêm diodo de laser integrado da Classe 3A ou da Classe 3B. Observe o seguinte:
Radiação a laser quando aberto. Não olhe diretamente para o feixe a olho nu ou com instrumentos ópticos e
evite exposição direta ao feixe.

≥18 kg (37 lbs)

≥32 kg (70.5 lbs)

≥55 kg (121.2 lbs)

CUIDADO:
Utilize procedimentos de segurança para levantar equipamentos.

CUIDADO:
O botão de controle de alimentação do dispositivo e o botão para ligar/desligar da fonte de alimentação
não desligam a corrente elétrica fornecida ao dispositivo. O dispositivo também pode ter mais de um cabo
de alimentação. Para remover toda a corrente elétrica do dispositivo, assegure que todos os cabos de
alimentação estejam desconectados da fonte de alimentação.

2
1

ThinkCentre Hardware Maintenance Manual

Chapter 2. Safety information

2
1

ThinkCentre Hardware Maintenance Manual

Chapter 2. Safety information

2
1

DANGER
Le courant électrique provenant de l'alimentation, du téléphone et des câbles de transmission peut présenter
un danger.
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.
• Branchez tous les cordons d'alimentation sur un socle de prise de courant correctement câblé et mis à la
terre.
• Branchez sur des socles de prise de courant correctement câblés tout équipement connecté à ce produit.
• Lorsque cela est possible, n'utilisez qu'une seule main pour connecter ou déconnecter les câbles
d'interface.
• Ne mettez jamais un équipement sous tension en cas d'incendie ou d'inondation, ou en présence de
dommages matériels.
• Avant de retirer les carters de l'unité, mettez celle-ci hors tension et déconnectez ses cordons
d'alimentation, ainsi que les câbles qui la relient aux réseaux, aux systèmes de télécommunication et aux
modems (sauf instruction contraire mentionnée dans les procédures d'installation et de configuration).
• Lorsque vous installez, que vous déplacez, ou que vous manipulez le présent produit ou des périphériques
qui lui sont raccordés, reportez-vous aux instructions ci-dessous pour connecter et déconnecter les
différents cordons.

ThinkCentre Hardware Maintenance Manual

Connexion

Déconnexion

1. Mettez les unités HORS TENSION.

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

2. Débranchez les cordons d'alimentation des prises.

3. Branchez les câbles d'interface sur des connecteurs.

4. Débranchez tous les câbles des unités.

3. Débranchez les câbles d'interface des connecteurs.

4. Branchez les cordons d'alimentation sur des prises.
5. Mettez les unités SOUS TENSION.

ATTENTION:
Remplacer la pile au lithium usagée par une pile de référence identique exclusivement, (référence
45C1566), ou suivre les instructions du fabricant qui en définit les équivalences. 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 peut exploser en cas de
mauvaise utilisation, de mauvaise manipulation ou de mise au rebut inappropriée.
Ne pas :
• la jeter à l'eau,
• l'exposer à des températures supérieures à 100°C,
• chercher à la réparer ou à la démonter.
Ne pas mettre la pile à la poubelle. Pour la mise au rebut, se reporter à la réglementation en vigueur.

ATTENTION:
Si des produits à laser (tels que des unités de CD-ROM, de DVD-ROM, des unités à fibres optiques, ou
des émetteurs) sont installés, prenez connaissance des informations suivantes :
• Ne retirez pas le carter. En ouvrant l'unité de CD-ROM ou de DVD-ROM, vous vous exposez au
rayonnement dangereux du laser. Aucune pièce de l'unité n'est réparable.
• 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 manuel.

DANGER
Certains produits à laser contiennent une diode à laser intégrée de classe 3A ou 3B. Prenez
connaissance des informations suivantes:
Rayonnement laser lorsque le carter est ouvert. Evitez toute expositiondirecte au rayon laser. Evitez
de regarder fixement le faisceau ou del'observer à l'aide d'instruments optiques.

Chapter 2. Safety information

≥18 kg (37 lbs)

≥32 kg (70.5 lbs)

≥55 kg (121.2 lbs)

ATTENTION:
Soulevez la machine avec précaution.

ATTENTION:
L'interrupteur de contrôle d'alimentation de l'unité et l'interrupteur dubloc d'alimentation ne coupent
pas le courant électrique alimentantl'unité. En outre, le système peut être équipé de plusieurs
cordonsd'alimentation. Pour mettre l'unité hors tension, vous devez déconnectertous les cordons
de la source d'alimentation.

2
1

VORSICHT
An Netz-, Telefon- und Datenleitungen können gefährliche Spannungen anliegen.
Aus Sicherheitsgründen:
• Bei Gewitter an diesem Gerät keine Kabel anschließen oder lösen. Ferner keine Installations-,
Wartungs- oder Rekonfigurationsarbeiten durchführen.
• Gerät nur an eine Schutzkontaktsteckdose mit ordnungsgemäß geerdetem Schutzkontakt
anschließen.
• Alle angeschlossenen Geräte ebenfalls an Schutzkontaktsteckdosen mit ordnungsgemäß
geerdetem Schutzkontakt anschließen.
• Die Signalkabel nach Möglichkeit einhändig anschließen oder lösen, um einen Stromschlag durch
Berühren von Oberflächen mit unterschiedlichem elektrischem Potenzial zu vermeiden.
• Geräte niemals einschalten, wenn Hinweise auf Feuer, Wasser oder Gebäudeschäden vorliegen.

ThinkCentre Hardware Maintenance Manual

• Die Verbindung zu den angeschlossenen Netzkabeln, Telekommunikationssystemen, Netzwerken
und Modems ist vor dem Öffnen des Gehäuses zu unterbrechen, sofern in den Installations- und
Konfigurationsprozeduren keine anders lautenden Anweisungen enthalten sind.
• Zum Installieren, Transportieren und Öffnen der Abdeckungen des Computers oder der
angeschlossenen Einheiten die Kabel gemäß der folgenden Tabelle anschließen und abziehen.
Zum Anschließen der Kabel gehen Sie wie folgt vor

Zum Abziehen der Kabel gehen Sie wie folgt vor

1. Schalten Sie alle Einheiten AUS.

2. Schließen Sie erst alle Kabel an die Einheiten an.
3. Schließen Sie die Signalkabel an die Buchsen an.

2. Ziehen Sie zuerst alle Netzkabel aus den
Netzsteckdosen.

4. Schließen Sie die Netzkabel an die Steckdose an.

3. Ziehen Sie die Signalkabel aus den Buchsen.

5. Schalten Sie die Einheit EIN.

4. Ziehen Sie alle Kabel von den Einheiten ab.

CAUTION:
Eine verbrauchte Lithiumbatterie nur durch eine Batterie mit der Teilenummer 45C1566 oder eine
gleichwertige, vom Hersteller empfohlene Batterie ersetzen. Enthält das System ein Modul mit einer
Lithiumbatterie, dieses nur durch ein Modul desselben Typs und von demselben Hersteller ersetzen.
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:
Bei der Installation von Lasergeräten (wie CD-ROM-Laufwerken, DVD- aufwerken, Einheiten mit
Lichtwellenleitertechnik oder Sendern) Folgendes beachten:
• Die Abdeckungen nicht entfernen. Durch Entfernen der Abdeckungen des Lasergeräts können
gefährliche Laserstrahlungen freigesetzt werden. Das Gerät enthält keine zu wartenden Teile.
• Werden Steuerelemente, Einstellungen oder Durchführungen von Prozeduren anders als hier
angegeben verwendet, kann gefährliche Laserstrahlung auftreten.

VORSICHT
Einige Lasergeräte enthalten eine Laserdiode der Klasse 3A oder 3B. Beachten Sie Folgendes:

Chapter 2. Safety information

Laserstrahlung bei geöffneter Verkleidung. Nicht in den Strahl blicken. Keine Lupen oder Spiegel
verwenden. Strahlungsbereich meiden.

≥18 kg

≥32 kg

≥55 kg

ACHTUNG:
Arbeitsschutzrichtlinien beim Anheben der Maschine beachten.

ACHTUNG:
Mit dem Netzschalter an der Einheit und am Netzteil wird die Stromversorgung für die Einheit
nicht unterbrochen. Die Einheit kann auch mit mehreren Netzkabeln ausgestattet sein. Um die
Stromversorgung für die Einheit vollständig zu unterbrechen, müssen alle zum Gerät führenden
Netzkabel vom Netz getrennt werden.

2
1

ThinkCentre Hardware Maintenance Manual

Chapter 2. Safety information

2
1

PERICOLO
La corrente elettrica proveniente dai cavi di alimentazione, del telefono e di comunicazione può essere
pericolosa.
Per evitare il rischio di scosse elettriche:
• Non collegare o scollegare qualsiasi cavo oppure effettuare l'installazione, la manutenzione o la
riconfigurazione del prodotto durante un temporale.
• Collegare tutti i fili elettrici a una presa di alimentazione correttamente cablata e dotata di messa a
terra.
• Collegare alle prese elettriche appropriate tutte le apparecchiature che verranno utilizzate per
questo prodotto.

ThinkCentre Hardware Maintenance Manual

• Se possibile, utilizzare solo una mano per collegare o scollegare i cavi di segnale.
• Non accendere assolutamente apparecchiature in presenza di incendi, perdite d'acqua o danno
strutturale.
• Scollegare i cavi di alimentazione, i sistemi di telecomunicazione, le reti e il modem prima di
aprire i coperchi del dispositivo, salvo istruzioni contrarie relative alle procedure di installazione e
configurazione.
• Collegare e scollegare i cavi come descritto nella seguente tabella quando vengono effettuate
operazioni di installazione, spostamento o apertura dei coperchi di questo prodotto o delle unità
collegate.
Per collegarsi

Per scollegarsi

1. SPEGNERE le apparecchiature.

2. Innanzitutto, collegare tutti i cavi alle unità.
3. Collegare i cavi di segnale ai connettori.

2. Innanzitutto, rimuovere i cavi di alimentazione dalla
presa.

4. Collegare i cavi di alimentazione alla presa.

3. Rimuovere i cavi di segnale dai connettori.

5. Accendere l'unità.

4. Rimuovere tutti i cavi dalle unità.

ATTENZIONE:
Quando si sostituisce la batteria al litio, utilizzare solo il Numero parte 45C1566 o un tipo di batteria
equivalente consigliato dal produttore. Se sul sistema è presente un modulo che contiene una batteria
al litio, sostituirlo solo con un tipo di modulo dello stesso tipo della stessa casa di produzione. La
batteria contiene litio e può esplodere se usata, maneggiata o smaltita in modo non corretto.
Non:
• Gettare o immergere la batteria nell'acqua
• Riscaldarla ad una temperatura superiore ai 100 gradi C (212 gradi F)
• Smontarla, ricaricarla o tentare di ripararla
Le batterie usate vanno smaltite in accordo alla normativa in vigore (DPR 915/82 e successive
disposizioni e disposizioni locali).

ATTENZIONE:
Quando vengono installati prodotti laser (quali CD-ROM, unità DVD-ROM, unità a fibre ottiche o
trasmittenti), tener presente quanto segue:
• Non rimuovere gli sportelli. L'apertura di un'unità laser può determinare l'esposizione a radiazioni
laser pericolose. All'interno dell'unità non vi sono parti su cui effettuare l'assistenza tecnica.
• L'utilizzo di controlli, regolazioni o l'esecuzione di procedure non descritti nel presente manuale
possono provocare l'esposizione a radiazioni pericolose.

Chapter 2. Safety information

PERICOLO
Alcune unità laser contengono un diodo laser di Classe 3A o Classe 3B. Tener presente quanto segue:
Aprendo l'unità vengono emesse radiazioni laser. Non fissare il fascio, non guardarlo direttamente
con strumenti ottici ed evitare l'esposizione al fascio.

≥18 kg

≥32 kg

≥55 kg

ATTENZIONE:
Prestare attenzione nel sollevare l'apparecchiatura.

ATTENZIONE:
Il pulsante di controllo dell'alimentazione presente sull'unità e l'interruttore dell'alimentatore non
disattivano l'alimentazione corrente fornita all'unità. E' possibile che l'unità disponga di più cavi di
alimentazione. Per disattivare l'alimentazione dall'unità, accertarsi che tutti i cavi di alimentazione
siano scollegati dalla fonte di alimentazione.

2
1

ThinkCentre Hardware Maintenance Manual

Chapter 2. Safety information

2
1

PELIGRO
La corriente eléctrica procedente de cables de alimentación, teléfonos y cables de comunicación puede
ser peligrosa.
Para evitar el riesgo de descarga eléctrica:
• No conecte ni desconecte los cables ni realice ninguna tarea de instalación, mantenimiento o
reconfiguración de este producto durante una tormenta eléctrica.
• Conecte todos los cables de alimentación a tomas de corriente debidamente cableadas y
conectadas a tierra.
• Cualquier equipo que se conecte a este producto también debe conectarse a tomas de corriente
debidamente cableadas.
• Siempre que sea posible, utilice una sola mano para conectar o desconectar los cables de señal.
• No encienda nunca un equipo cuando hay señales de fuego, agua o daños estructurales.

ThinkCentre Hardware Maintenance Manual

• Desconecte los cables de alimentación, los sistemas de telecomunicaciones, las redes y los
módems conectados antes de abrir las cubiertas de los dispositivos, a menos que se indique lo
contrario en los procedimientos de instalación y configuración.
• Conecte y desconecte los cables, como se describe en la tabla siguiente, cuando instale, mueva o
abra las cubiertas de este producto o de los dispositivos conectados.
Para conectar

Para desconectar

1. APÁGUELO todo.

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

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

3. Conecte los cables de señal a los conectores.

3. Desconecte los cables de señal de los conectores.

4. Enchufe los cables de alimentación a las tomas de
corriente.

4. Desconecte todos los cables de los dispositivos.

5. Encienda el dispositivo.

PRECAUCIÓN:
Cuando sustituya una batería de litio, utilice solamente una batería número de pieza 45C1566 u otra
de tipo equivalente recomendada por el fabricante. Si su sistema dispone de un módulo que contiene
una batería de litio, reemplácelo sólo con el mismo tipo de módulo, del mismo fabricante. La batería
contiene litio y puede explotar si no se utiliza, manipula o desecha correctamente.
No debe:
• Arrojarla al agua o sumergirla en ella
• Exponerla a temperaturas superiores a 100°C (212°F)
• Repararla o desmontarla
Deshágase de la batería según especifiquen las leyes o normas locales.

PRECAUCIÓN:
Cuando haya productos láser (como unidades de CD-ROM, unidades de DVD, dispositivos de fibra
óptica o transmisores) instalados, tenga en cuenta lo siguiente:
• No quite las cubiertas. Si quita las cubiertas del producto láser, podría quedar expuesto a radiación
láser peligrosa. Dentro del dispositivo no existe ninguna pieza que requiera servicio técnico.
• Si usa controles o ajustes o realiza procedimientos que no sean los especificados aquí, podría
exponerse a radiaciones peligrosas.

PELIGRO

Chapter 2. Safety information

Algunos productos láser tienen incorporado un diodo láser de clase 3A o clase 3B. Tenga en cuenta lo
siguiente:
Cuando se abre, queda expuesto a radiación láser. No mire directamente al rayo láser, ni siquiera con
instrumentos ópticos, y evite exponerse directamente al rayo láser.

≥18 kg

≥32 kg

≥55 kg

PRECAUCIÓN:
Adopte procedimientos seguros al levantar el equipo.

PRECAUCIÓN:
El botón de control de alimentación del dispositivo y el interruptor de alimentación de la fuente de
alimentación no desconectan la corriente eléctrica suministrada al dispositivo. Además, el dispositivo
podría tener más de un cable de alimentación. Para suprimir toda la corriente eléctrica del dispositivo,
asegúrese de que todos los cables de alimentación estén desconectados de la toma de corriente.

2
1

ThinkCentre Hardware Maintenance Manual

Chapter 3. General information
This chapter provides general information that applies to all machine types supported by this publication.

Specifications
This section lists the physical specifications for your computer.
Dimensions and weight
Multi-touch with frame stand

Non-touch with frame stand

Non-touch with monitor stand

Height

411.00 mm (16.18 inches)

430.85 mm (16.96 inches)

Width

506.80 mm (19.95 inches)

Depth

107.00 mm (4.21 inches)

100.50 mm (4.21 inches)

227.00 mm (8.94 inches)

Weight
(maximum)

7.95 kg (17.53 lbs)

6.64 kg (14.64 lbs)

8.40 kg (18.52 lbs)

Environment
• Air temperature:
Operating: 10°C to 35°C (50°F to 95°F)
Storage: -20°C to 60°C (-4°F to 140°F)
Storage: -10°C to 60°C (14°F to 140°F) without package
• Humidity:
Operating: 20% to 80% (non-condensing)
Storage: 20% to 80% (non-condensing)
• Altitude:
Operating: -50 to 10 000 ft (-15.2 to 3 048 m)
Storage: -50 to 35 000 ft (-15.2 to 10 668 m)
Electrical input
• Input voltage:
– Low range:
Minimum: 100 V ac
Maximum: 127 V ac
Input frequency range: 50 to 60 Hz
– High range:
Minimum: 200 V ac
Maximum: 240 V ac
Input frequency range: 50 to 60 Hz

Lenovo ThinkVantage Tools
The Lenovo ThinkVantage® Tools program guides you to a host of information sources and provides easy
access to various tools to help you work more easily and securely.

To access the Lenovo ThinkVantage Tools program, click Start ➙ All Programs ➙ Lenovo ThinkVantage
Tools.
The following table lists the programs that you can access from the Lenovo ThinkVantage Tools program. To
access a program, double-click the corresponding icon.
Table 1. Program icon names in Lenovo ThinkVantage Tools
Program name

Icon name in Lenovo ThinkVantage Tools

Create Recovery Media

Factory Recovery Disks

Fingerprint Software

Fingerprint Reader

Lenovo Solution Center

System Health and Diagnostics

SimpleTap

ThinkVantage Password Manager

Password Vault

ThinkVantage Power Manager

Power Controls

ThinkVantage Rescue and

Recovery®

Enhanced Backup and Restore

ThinkVantage System Update

Update and Drives

Communications Utility

Web Conferencing

View Manager

Screen Layout

Lenovo Welcome
The Lenovo Welcome program introduces you to some innovative built-in features of Lenovo and guides you
through a few important setup tasks to help you make the most of your computer.

Lenovo Solution Center
The Lenovo Solution Center program enables you to troubleshoot and resolve computer problems. It
combines diagnostic tests, system information collection, security status, and support information, along
with hints and tips for maximum system performance. See “Lenovo Solution Center” on page 51 for detailed
information.

SimpleTap
The SimpleTap program provides you with a quick way to customize some basic computer settings such as
muting the speakers, adjusting the volume, locking the computer operating system, launching a program,
opening a Web page, opening a file, and so on. You also can use the SimpleTap program to access the
Lenovo App Shop, from which you can download various applications and computer software.
To start the SimpleTap program, do any of the following:
• Click Start ➙ All Programs ➙ SimpleTap.
• Click Start ➙ All Programs ➙ Lenovo ThinkVantage Tools, and double-click SimpleTap.
• Click the red SimpleTap launch point on the desktop. The red launch point is available on the desktop
after you have launched the SimpleTap program for the first time.
• Press the blue ThinkVantage button if your keyboard has one.
Note: The SimpleTap program is only available on certain models preinstalled with the Windows 7 operating
system. If your Windows 7 model is not preinstalled with the SimpleTap program, you can download it
from http://www.lenovo.com/simpletap.

ThinkCentre Hardware Maintenance Manual

Additional information resources
If you have Internet access, the most up-to-date information for your computer is available from the World
Wide Web.
You can find the following information:
• CRU removal and installation instructions
• Publications
• Troubleshooting information
• Parts information
• Downloads and drivers
• Links to other useful sources of information
To access this information, go to:
http://www.lenovo.com/support

Chapter 3. General information

ThinkCentre Hardware Maintenance Manual

Chapter 4. General Checkout
Attention
The drives in the computer you are servicing might have been rearranged or the drive startup sequence
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.
General error messages appear if a problem or conflict is found by an application program, the operating
system, or both. For an explanation of these messages, refer to the information supplied with that software
package.
Before replacing any FRUs, ensure that the latest level of BIOS is installed on the system. A down-level BIOS
might cause false errors and unnecessary replacement of the system board. For more information on how to
determine and obtain the latest level BIOS, see “BIOS levels” on page 111.
Use the following procedure to help determine the cause of the problem:
1. Power-off the computer and all external devices.
2. Check all cables and power cords.
3. Set all display controls to the middle position.
4. Power-on all external devices.
5. Power-on the computer.
• Look for displayed error codes
• Listen for beep codes
• Look for readable instructions or a main menu on the display.
If you did not receive the correct response, proceed to step 6 on page 33.
If you do receive the correct response, proceed to step 7 on page 33.
6. Look at the following conditions and follow the instructions:
• If you hear beep codes during POST, go to “Beep symptoms” on page 57.
• If the computer displays a POST error, go to “POST error codes” on page 58.
• If the computer hangs and no error is displayed, continue at step 7 on page 33.
7. Run the Diagnostic programs. See “Diagnostics” on page 51.
• If the test stops and you cannot continue, replace the last device tested.

Problem determination tips
Due to the variety of hardware and software combinations that can be encountered, use the following
information to assist you in problem determination. If possible, have this information available when
requesting assistance from Service Support and Engineering functions.
• Machine type and model
• Processor or hard disk drive upgrades
• Failure symptom
– Do diagnostics indicate a failure?
– What, when, where, single, or multiple systems?
– Is the failure repeatable?
– Has this configuration ever worked?

– If it has been working, what changes were made prior to it failing?
– Is this the original reported failure?
• Diagnostics version
– Type and version level
• Hardware configuration
– Print (print screen) configuration currently in use
– BIOS level
• Operating system software
– Type and version level
Notes: To eliminate confusion, identical systems are considered identical only if they:
1. Are the exact machine type and models
2. Have the same BIOS level
3. Have the same adapters/attachments in the same locations
4. Have the same address jumpers/terminators/cabling
5. Have the same software versions and levels
6. Have the same Diagnostic Diskettes (version)
7. Have the same configuration options set in the system
8. Have the same setup for the operating system control files
Comparing the configuration and software set-up between “working and non-working” systems will often
lead to problem resolution.

ThinkCentre Hardware Maintenance Manual

Chapter 5. Troubleshooting and diagnostics
This chapter describes some basic troubleshooting and diagnostic programs. If your computer problem is
not described here, see “Diagnostics” on page 51 for additional troubleshooting resources.

Basic troubleshooting
The following table provides information to help you troubleshoot your computer problems.
Note: If you cannot correct the problem, have the computer serviced. For a list of service and support
telephone numbers, refer to the Safety , Warranty, and Setup Guide that comes with your computer or go to
the Lenovo Support Web site at http://www.lenovo.com/support/phone.
Symptom
The computer does not start
when you press the power
switch.

Action
Verify that:
• The power cord is correctly connected to the rear of the computer and to a
working electrical outlet.
• If your computer has a secondary power switch on the rear of the computer,
make sure that it is switched on.
• The power indicator on the front of the computer is on.
• The computer voltage matches the voltage available at the electrical outlet for
your country or region.

The monitor screen is blank.

Verify that:
• The monitor power cord is correctly connected to the monitor and to a working
electrical outlet.
• The monitor is turned on and the brightness and contrast controls are set
correctly.
• The computer voltage matches the voltage available at the electrical outlet for
your country or region.

The keyboard does not work.

Verify that:
• The computer is turned on.
• The keyboard is securely connected to a USB connector on the computer.
• No keys are stuck.

The mouse does not work.

Verify that:
• The computer is turned on.
• The mouse is securely connected to a USB connector on the computer.
• The mouse is clean.

Symptom
The wireless keyboard or mouse
does not work.

Action
Verify that:
• The computer is turned on.
• The battery or batteries installed in the wireless keyboard or mouse are in good
condition.
• The wireless configurations are all set correctly. You might need to refer to
the documentation that come with the wireless keyboard or mouse, or refer
to your Windows Help and Support information system for wireless related
instructions. If your wireless mouse has a dongle, make sure the dongle is
correctly connected to one of the USB connectors on the computer.
• For the wireless keyboard, no keys are stuck.
• The wireless mouse is clean.

The operating system does not
start.

Verify that:

The computer beeps multiple
times before the operating
system starts.

Verify that no keys are stuck.

• The startup sequence includes the device where the operating system resides.
Usually, the operating system is on the hard disk drive. For more information,
see “Selecting a startup device” on page 55.

Troubleshooting procedure
Use the following procedure as a starting point for diagnosing problems you are experiencing with your
computer:
1. Verify that the cables for all attached devices are connected correctly and securely.
2. Verify that all attached devices that require ac power are connected to properly grounded, functioning
electrical outlets.
3. Verify that all attached devices are enabled in the BIOS settings of your computer. For more information
about accessing and changing the BIOS settings, refer to your Chapter 6 “Using the Setup Utility
program” on page 53.
4. Go to the “Troubleshooting” on page 37 and follow the instructions for the type of problem you are
experiencing. If the Troubleshooting information does not help you resolve a problem, continue with the
next step.
5. Try using a previously captured configuration to see if a recent change to hardware or software settings
has caused a problem. Before restoring a previous configuration, capture your current configuration in
case the older configuration settings do not solve the problem or have adverse affects. To restore a
captured configuration, click Start ➙ Control Panel ➙ System and Security ➙ System ➙ System
Protection ➙ System Restore . If this does not correct the problem, continue with the next step.
6. Run the diagnostic programs. See “Diagnostics” on page 51 for more information.
• If the diagnostic programs detect a hardware failure, contact the Lenovo Customer Support Center.
See “Additional information resources” on page 31 for more information.
• If you are unable to run the diagnostic programs, contact the Lenovo Customer Support Center. See
“Additional information resources” on page 31 for more information.
• If the diagnostic programs do not detect a hardware failure, continue with the next step.
7. Use an antivirus program to see if your computer has been infected by a virus. If the program detects a
virus, remove the virus.
8. If none of these actions solve the problem, seek technical assistance. See “Additional information
resources” on page 31 for more information.

ThinkCentre Hardware Maintenance Manual

Troubleshooting
Use the troubleshooting information to find solutions to problems that have definite symptoms.
If the symptom your computer is experiencing occurred immediately after a new hardware option or new
software installed, do the following before referring to the troubleshooting information:
1. Remove the new hardware option or software. If you must remove the computer cover to remove a
hardware option, have the computer serviced. For your safety, do not operate the computer with the
cover removed.
2. Run the diagnostic programs to ensure your computer is operating correctly.
3. Reinstall the new hardware option or software.
Select the problem your computer is experiencing from the following list:
•

“Audio problems” on page 37

•

“CD problems” on page 38

•

“DVD problems” on page 39

•

“Intermittent problems” on page 41

•

“Keyboard, mouse, or pointing device problems” on page 41

•

“Monitor problems” on page 43

•

“Networking problems” on page 44

•

“Option problems” on page 47

•

“Performance and lockup problems” on page 48

•

“Printer problems” on page 49

•

“Serial port problems” on page 49

•

“Software problems” on page 50

•

“USB problems” on page 51

Audio problems
Select your symptom from the following list:
•
•

“No audio in Windows” on page 37
“An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted into a drive”
on page 38

•

“Sound comes from one external speaker only” on page 38

•

“No audio in DOS applications or games” on page 38

No audio in Windows
Symptom: No audio in Windows
Actions:
• If you are using powered external speakers that have an On/Off control, verify that the On/Off control is
set to the On position and the speaker power cable is connected to a properly grounded, functional ac
electrical outlet.
• If your external speakers have a volume control, verify that the volume control is not set too low.
• Double-click the speaker icon in the Windows notification area. A master volume-control window opens.
Verify that the Mute settings are not checked and none of the volume settings is set too low.
Chapter 5. Troubleshooting and diagnostics

• Some models have a front audio panel you can use to adjust volume. If you have a front audio panel,
verify that the volume is not set too low.
• Verify that your external speakers (and headphones, if used) are connected to the correct audio connector
on the computer. Most speaker cables are color-coded to match the connector.
Note: When external-speaker or headphone cables are attached to the audio connector, the internal
speaker, if present, is disabled. In most cases, if an audio adapter is installed in one of the expansion slots,
the audio function built into the system board is disabled; use the audio jacks on the adapter.
• Make sure that the program you are running is designed for use in the Microsoft Windows operating
system. If the program is designed to run in DOS, the program does not use the Windows sound feature
and must be configured to use SoundBlaster Pro or SoundBlaster emulation.
• Verify that the audio device drivers are correctly installed. See Microsoft Windows help system for more
information.
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51 for
instructions). If you need technical assistance, see “Additional information resources” on page 31.

An audio disc or AutoPlay-enabled disc does not automatically play when it is
inserted into a drive
Symptom: An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted into a drive
Action: See “CD problems” on page 38.

Sound comes from one external speaker only
Symptom: Sound comes from one external speaker only.
Actions:
• Ensure that the speaker cable is inserted completely into the connector on the computer.
• Make sure the cable that attaches the left speaker to the right speaker is securely connected.
• Double-click the speaker icon in the Windows notification area. A master volume-control window opens.
Verify that the Balance settings are set correctly.
If these actions do not correct the problem, you might have a failing speaker. Have the speaker serviced. If
you need technical assistance, see “Additional information resources” on page 31.

No audio in DOS applications or games
Symptom: No audio in DOS applications or games
Actions:
• Make sure the DOS application or game is configured to use SoundBlaster Pro or SoundBlaster
emulation. Refer to the documentation that comes with the application or game for instructions on
setting sound-card settings.
• If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51
for instructions). If you need technical assistance, see “Additional information resources” on page 31.

CD problems
Select your symptom from the following list:
•

“An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted into a CD
drive” on page 39

ThinkCentre Hardware Maintenance Manual

•
•

“A CD or DVD does not work” on page 39
“Unable to use a startable (bootable) recovery medium, such as the Product Recovery CD, to start
your computer” on page 39

An audio disc or AutoPlay-enabled disc does not automatically play when it is
inserted into a CD drive
Symptom: An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted into
a CD drive.
Actions:
• If you have multiple CD or DVD drives installed (or a combination of CD and DVD drives), try inserting the
disc into the other drive. In some cases, only one of the drives is connected to the audio subsystem.
• If you are using the Windows 7 operating system, follow the action for “A CD or DVD does not work”
on page 39.
If this does not correct the problem, follow the action for “A CD or DVD does not work” on page 39.

A CD or DVD does not work
Symptom: A CD or DVD does not work.
Actions:
• Verify that the disc is inserted correctly, with its label up.
• Make sure that the disc you are using is clean. To remove dust or fingerprints, wipe the disc clean with a
soft cloth from the center to the outside. Wiping a disc in a circular motion might cause loss of data.
• Verify that the disc you are using is not scratched or damaged. Try inserting another disc that you know
is good. If you cannot read from a known-good disc, you might have a problem with your CD or DVD
drive or the cabling to your CD or DVD drive. Make sure that the power cable and signal cable are
securely connected to the drive.

Unable to use a startable (bootable) recovery medium, such as the Product Recovery
CD, to start your computer
Symptom: Unable to use a startable (bootable) recovery medium, such as the Product Recovery CD,
to start your computer.
Action: Make sure that the CD or DVD drive is in the startup sequence before the hard disk drive. Refer
to your “Selecting or changing the startup device sequence” on page 55 for information on viewing and
changing the startup sequence. Note that on some models the startup sequence is permanently set and
cannot be changed.
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51 for
instructions). If you need technical assistance, see “Additional information resources” on page 31.

DVD problems
Select your symptom from the following list:
•

“Black screen instead of DVD video” on page 40

•

“DVD movie will not play” on page 40

•

“No audio or intermittent audio while playing DVD movie” on page 40

•

“Playback is very slow or choppy” on page 40

•

“Invalid disc or no disc found message” on page 40
Chapter 5. Troubleshooting and diagnostics

Black screen instead of DVD video
Symptom: Black screen instead of DVD video
Actions:
• Restart the DVD player program.
• Close any open files, turn off the computer, and then restart the computer.
• Try a lower screen resolution or color depth.
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51 for
instructions). If you need technical assistance, see “Additional information resources” on page 31.

DVD movie will not play
Symptom: DVD movie will not play.
Actions:
• Make sure that the disc surface is clean and not scratched.
• Check the disc or package for regional coding. You might need to purchase a disc with coding for
the region where you are using your computer.
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51 for
instructions). If you need technical assistance, see “Additional information resources” on page 31.

No audio or intermittent audio while playing DVD movie
Symptom: No audio or intermittent audio while playing DVD movie.
Actions:
• Check the volume control settings on your computer and on your speakers.
• Make sure that the disc surface is clean and not scratched.
• Check all cable connections to and from the speakers.
• Use the DVD menu for the video to select a different audio track.
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51 for
instructions). If you need technical assistance, see “Additional information resources” on page 31.

Playback is very slow or choppy
Symptom: Playback is very slow or choppy.
Actions:
• Disable any background programs, such as AntiVirus or Desktop Themes.
• Ensure that video resolution is set to less than 1152 x 864.
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51 for
instructions). If you need technical assistance, see “Additional information resources” on page 31.

Invalid disc or no disc found message
Symptom: Invalid disc or no disc found message
Actions:

ThinkCentre Hardware Maintenance Manual

• Ensure that a DVD disc is in the drive with the shiny side of the disc facing down.
• Ensure that video resolution is set to less than 1152 x 864.
• On computers that have a CD-ROM or CD-RW drive in addition to a DVD-ROM drive, make sure that the
DVD disc is in the drive labeled “DVD”.
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51 for
instructions). If you need technical assistance, see “Additional information resources” on page 31.

Intermittent problems
Symptom: A problem occurs only occasionally and is difficult to repeat.
Actions:
• Verify that all cables and cords are securely connected to the computer and attached devices.
• Verify that when the computer is on, the fan is not blocked (there is air flow around the fan), and the fan is
working. If airflow is blocked or the fan is not working, the computer might overheat.
• If SCSI devices are installed, verify that the last external device in each SCSI chain is terminated correctly.
(See your SCSI documentation.)
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51 for
instructions). If you need technical assistance, see “Additional information resources” on page 31.

Keyboard, mouse, or pointing device problems
Select your symptom from the following list:
•

“All or some keys on the keyboard do not work” on page 41

•

“The mouse or pointing device does not work” on page 42

•

“The pointer on the screen does not move smoothly with the mouse” on page 42

•

“The fingerprint reader does not work” on page 42

•

“The wireless keyboard does not work” on page 42

All or some keys on the keyboard do not work
Symptom: All or some keys on the keyboard do not work.
Actions:
• Verify that the keyboard cable is securely connected to the correct connector on the computer.
• If you are using an Enhanced Performance USB keyboard and one or more of the Rapid Access buttons
are the only keys that are not working, these buttons might have been disabled or have not been assigned
to a function. Use the help system in the Enhanced Performance Customization Keyboard program to
help diagnose problems with the Rapid Access buttons.
• On the Windows 7 operating system, do the following:
1. Click Start ➙ Control Panel.
2. Click Hardware and Sound.
3. Click Devices and Printers.
4. Double-click USB Enhanced Performance Keyboard. The USB Enhanced Performance Keyboard
Customization program starts.

Chapter 5. Troubleshooting and diagnostics

If these actions do not correct the problem, have the computer and keyboard serviced. See “Additional
information resources” on page 31 for details.

The mouse or pointing device does not work
Symptom: The mouse or pointing device does not work.
Actions:
• Verify that the mouse or pointing-device cable is securely attached to the correct connector on the
computer. Depending on the type of mouse you have, the mouse cable will connect to either the
mouse, serial, or USB connector. Some keyboards have integrated USB connectors that can be used
for a USB mouse or pointing device.
• Verify that the device drivers for the mouse or pointing device are installed correctly.
• If you are using a USB keyboard or mouse, verify that the USB connectors are enabled in the BIOS
settings. See “Enabling or disabling a device” on page 55.
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51 for
instructions). If you need technical assistance, see “Additional information resources” on page 31.

The pointer on the screen does not move smoothly with the mouse
Symptom: The pointer on the screen does not move smoothly with the mouse.
Action: Erratic movement of the mouse pointer is generally caused by a buildup of dirt, oils, and other
contaminants on the ball inside the mouse. Clean the mouse.

The fingerprint reader does not work
Symptom: The fingerprint reader does not work.
Action: The following could cause the fingerprint reader not to operate properly:
• Not enrolling your fingerprint correctly.
• Scratching the surface of the reader with a hard, pointed object.
• Scraping the surface of the reader with your nail or anything hard.
• Using or touching the reader with a dirty finger.
• The surface of your finger is very different from when you enrolled your fingerprint.

The wireless keyboard does not work
Symptom: The wireless keyboard does not work.
Action: If the Transceiver Communications LED is on and the wireless Keyboard does not work, restart your
computer. If restarting your computer does not solve the problem, verify that the following conditions are met:
• The batteries are properly installed.
• The batteries still retain their current.
• The wireless keyboard is located less than ten meters away from the transceiver.
• The transceiver is fully installed.
Action: If the transceiver communications LED is not on, reconnect the transceiver and the keyboard.

ThinkCentre Hardware Maintenance Manual

Monitor problems
Note: Many monitors have status-indicator lights and built-in controls for adjusting brightness, contrast,
width, height, and other picture adjustments. However, the controls vary from monitor type to monitor type.
Select your symptom from the following list:
•

“Wrong characters appear on the screen” on page 43

•

“The monitor works when you turn on the computer, but goes blank after some period of computer
inactivity” on page 43

•

“The monitor works when you turn on the computer, but goes blank when you start some application
programs” on page 43

•

“The image appears to be flickering” on page 43

•

“The image is discolored” on page 44

Wrong characters appear on the screen
Symptom: Wrong characters appear on the screen.
Action: Have the computer serviced. For details, see “Additional information resources” on page 31.

The monitor works when you turn on the computer, but goes blank after some period
of computer inactivity
Symptom: The monitor works when you turn on the computer, but goes blank after some period of computer
inactivity.
Action: The computer is probably set for energy savings with the power-management feature. If the
power-management feature is enabled, disabling it or changing the settings might solve the problem.
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51 for
instructions). If you need technical assistance, see “Additional information resources” on page 31.

The monitor works when you turn on the computer, but goes blank when you start
some application programs
Symptom: The monitor works when you turn on the computer, but goes blank when you start some
application programs.
Action:
Verify that the necessary device drivers for the application programs are installed. Refer to the documentation
for the affected application program to see if device drivers are required.
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51 for
instructions). If you need technical assistance, see “Additional information resources” on page 31.

The image appears to be flickering
Symptom: The image appears to be flickering.
Actions:
• The monitor might be operating in a low-refresh rate display mode. Set the monitor to the highest,
noninterlaced refresh rate supported by your monitor and the video controller in your computer.
• The monitor might be affected by interference from nearby equipment. Magnetic fields around other
devices, such as transformers, appliances, fluorescent lights, and other monitors might be causing the

Chapter 5. Troubleshooting and diagnostics

problem. Move fluorescent desk lighting or any equipment that produces magnetic fields farther away
from the monitor. If this does not correct the problem, do the following:
1. Turn off the monitor. (Moving a color monitor while it is turned on might cause screen discoloration.)
2. Adjust the placement of the monitor and other devices so that they are at least 305 mm (12 inches)
apart.
3. Turn on the monitor.
• You can reset the refresh rate through your operating system Control Panel:
On the Windows 7 operating system, click Start ➙ Control Panel ➙ Hardware and Sound ➙ Adjust
screen resolution ➙ Advanced Settings. Then click the Monitor tab and select a new refresh rate.
• See your operating system documentation or help for further information on monitor settings.
If these actions do not correct the problem, your monitor might need service. See “Additional information
resources” on page 31 for details.

The image is discolored
Symptom: The image is discolored.
Action: The monitor might be affected by interference from nearby equipment. Magnetic fields around other
devices, such as transformers, appliances, fluorescent lights, and other monitors might be causing the
problem. Move fluorescent desk lighting or any equipment that produces magnetic fields further away from
the monitor. If this does not correct the problem, do the following:
1. Turn off the monitor. (Moving a color monitor while it is turned on might cause screen discoloration.)
2. Adjust the placement of the monitor and other devices so that they are at least 305 mm (12 inches) apart.
3. Turn on the monitor.
If these actions do not correct the problem, your monitor might need service. See “Additional information
resources” on page 31 for details.

Networking problems
The following are the most common networking problems. Select your networking problem from the
following list:
•

“Ethernet problems” on page 44

•

“A wireless LAN problem” on page 46

•

“A wireless WAN problem” on page 46

•

“Bluetooth problems” on page 46

Ethernet problems
For Ethernet problems, select your symptom from the following list:
•

“Your computer cannot connect to the network” on page 44

•

“The adapter stops working for no apparent reason” on page 45

•

“If your computer is a Gigabit Ethernet model and you use a speed of 1000 Mbps, the connection fails
or errors occur” on page 45

•

“If your computer is a Gigabit Ethernet model, it cannot connect to the network at 1000 Mbps. Instead,
it connects at 100 Mbps” on page 46

Your computer cannot connect to the network
Symptom: Your computer cannot connect to the network.

ThinkCentre Hardware Maintenance Manual

Actions: Make sure that:
• The cable is installed properly.
The network cable must be securely connected to both the Ethernet connector of your computer and
the RJ45 connector of the hub. The maximum allowable distance from the computer to hub is 100
meters. If the cable is connected and the distance is within acceptable limits but the problem persists, try
a different cable.
• The cable is installed properly.
• You are using the correct device driver.
On the Windows 7 operating system, do the following:
1. Click Start ➙ Control Panel.
2. Click Hardware and Sound.
3. Click Device Manager. If you are prompted for an administrator password or confirmation, type the
password or provide confirmation.
4. If an exclamation mark is displayed next to an adapter name under Network adapters, you might not
use the correct driver or the driver is not enabled. To update the driver, right-click the highlighted
adapter.
5. Click Update Driver Software, and then follow the instructions on the screen.
• The switch port and the adapter have the same duplex setting.
If you configured the adapter for full duplex, make sure the switch port is also configured for full duplex.
Setting the wrong duplex mode can degrade performance, cause data loss, or result in lost connections.
• You have installed all networking software that is necessary for your network environment.
Check with your LAN administrator for the necessary networking software.
The adapter stops working for no apparent reason
Symptom: The adapter stops working for no apparent reason.
Action: The network driver files may be corrupt or missing. Update the driver by referring to the “Solution”
description for the procedure to make sure that the correct device driver is installed.
The Wake on LAN feature is not working
Symptom: The Wake on LAN (WOL) feature is not working.
Actions:
• Make sure that WOL is enabled in the BIOS Setup Utility program.
• If it is, check with your LAN administrator for the necessary settings.
If your computer is a Gigabit Ethernet model and you use a speed of 1000 Mbps, the connection
fails or errors occur
Symptom: If your computer is a Gigabit Ethernet model and you use a speed of 1000 Mbps, the connection
fails or errors occur.
Actions:
• Use Category 5 wiring and make sure that the network cable is securely connected.
• Connect to a 1000 BASE-T hub/switch (not 1000 BASE-X).

Chapter 5. Troubleshooting and diagnostics

If your computer is a Gigabit Ethernet model, it cannot connect to the network at 1000 Mbps. Instead,
it connects at 100 Mbps
Symptom: If your computer is a Gigabit Ethernet model, it cannot connect to the network at 1000 Mbps.
Instead, it connects at 100 Mbps.
Actions:
• Try another cable.
• Make sure that the link partner is set to auto-negotiate.
• Make sure that the switch is 802.3ab-compliant (gigabit over copper).

A wireless LAN problem
Symptom: You cannot connect using the built-in wireless networking card.
Actions:
• Make sure that your wireless LAN driver is the latest version. Check the Web site and verify the driver
version supported by Access Connections is the latest documented in the readme file.
• Make sure that your computer is within range of a wireless access point.
• Make sure that the wireless radio is enabled by double-clicking the Access Connections icon in the
Windows notification area.
Note: If your computer is preinstalled with the Windows 7 operating system, click Show hidden icons in
the Windows notification area. The Access Connections icon is displayed. For more information about
the icon, see the Help in Access Connections.
• Check Network Name (SSID), and your encryption information. Use Access Connections to verify this
case-sensitive information.

A wireless WAN problem
Message: Unauthorized WAN card is plugged in - Power off and remove the WAN card.
Action: Seek technical assistance for help to remove the unauthorized WAN card. See “Additional
information resources” on page 31 for more information.
Note: Some computer models do not have a wireless WAN.

Bluetooth problems
Bluetooth is available with some certain computer models.
For Bluetooth problems, select your symptom from the following list:
•

“Sound does not come from the Bluetooth headphone” on page 46

•

“PIM items sent from the Windows 7 operating system cannot be received correctly” on page 47

Sound does not come from the Bluetooth headphone
Symptom: Sound does not come from the Bluetooth headset/headphone but comes from the local speaker
even though the headset/headphone is connected using Headset profile or AV profile.
Action: Do the following:
1. Exit the application that uses the sound device (for example, Windows Media Player).
2. Open the Control Panel by clicking Start ➙ Control Panel.
3. Click Hardware and Sound ➙ Sound .

ThinkCentre Hardware Maintenance Manual

4. Select the Playback tab.
5. If you are using Headset profile, select Bluetooth Hands-free Audio and click the Set Default button. If
you are using AV profile, select Stereo Audio and click the Set Default button.
6. Click OK to close the Sound window.
PIM items sent from the Windows 7 operating system cannot be received correctly
Symptom: Personal Information Manager (PIM) items sent from the Windows 7 operating system cannot be
received correctly into the address book of any other Bluetooth-enabled device.
Action: The Windows 7 operating system sends PIM items in XML format, but most Bluetooth-enabled
devices handle PIM items in vCard format. If another Bluetooth-enabled device can receive a file through
Bluetooth, a PIM item sent from the Windows 7 operating system system might be saved as a file with
the extension contact.

Option problems
Use this information to diagnose problems with Lenovo hardware options that do not have their own
troubleshooting information.
Select your symptom from the following list:
•

“An option that was just installed does not work” on page 47

•

“An option that previously worked does not work now” on page 47

An option that was just installed does not work
Symptom: An option that was just installed does not work.
Action: Verify that:
• The option is designed for your computer.
• You followed the installation instructions supplied with the option and the installation instructions provided
with your computer, and all option files (such as device drivers, if required) are installed correctly.
• You have not loosened other installed options or cables.
• If the option is an adapter, you have provided enough hardware resources for the adapter to function
correctly. See the documentation supplied with the adapter (as well as the documentation for any other
installed adapters) to determine the resources required for each adapter.
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51 for
instructions). If you need technical assistance, see “Additional information resources” on page 31.

An option that previously worked does not work now
Symptom: An option that previously worked does not work now.
Actions:
• Verify that all option hardware and cable connections are secure.
• If the option comes with its own test instructions, use those instructions to test the option.
• If the failing option is a SCSI option, verify that:
– The cables for all external SCSI options are connected correctly.
– The last option in each SCSI chain, or the end of the SCSI cable, is terminated correctly.
– All external SCSI options are turned on. External SCSI options must be turned on before the computer
is turned on. For more information, see your SCSI documentation.
Chapter 5. Troubleshooting and diagnostics

• Verify that the option and any required device drivers are installed correctly.
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51 for
instructions). If you need technical assistance, see “Additional information resources” on page 31.

Performance and lockup problems
Poor performance and lockup problems can be a result of any of the following:
•

“Insufficient free hard disk drive space” on page 48

•

“Excessive number of fragmented files” on page 49

Make a selection from the above list to find out more about the corrective actions you can take.

Insufficient free hard disk drive space
Symptom: Insufficient free hard disk drive space
The Windows operating system will slow down and might produce errors if the hard disk drive gets too full.
To check the amount of free space on the Windows 7 operating system, do the following:
1. Click Start ➙ Computer.
2. Right-click your C drive entry and then click Properties. The amount of free disk space is displayed.
Actions to free up disk space:
• On the Windows 7 operating system, do one or all of the following:
–
1. Click Start ➙ Computer.
2. Right-click your C drive entry and then click Properties.
3. Click Disk Cleanup.
4. A list of unnecessary file categories is displayed. Select each file category you want to delete, and
then click OK.
–
1. Click Start ➙ Control Panel.
2. Click Programs.
3. Click Turn Windows features on or off.
4. A list of optional Windows components is displayed. Follow the instructions on the screen.
–
1. Click Start ➙ Computer.
2. Right-click your C drive entry and then click Properties.
3. Click Disk Cleanup.
4. Click Clean up system files.
5. Click the More Options tab.
6. In the Programs and Features area, click the Clean up button.
7. A list of installed applications is displayed. Select the application you want to remove. Click
Uninstall/Change.

ThinkCentre Hardware Maintenance Manual

• Clean out your Inbox, Sent Items, and Deleted Items folders from your e-mail application. The folder
names and procedures vary depending on your e-mail application. If you need assistance, see the
help system for your e-mail application.

Excessive number of fragmented files
Symptom: Excessive number of fragmented files
Action: Run the Windows Disk Defragmenter program.
Note: Depending on the size of the hard disk drive and amount of data currently stored on the hard disk
drive, the disk defragmentation process might take up to several hours to complete.
On the Windows 7 operating system, do the following:
1. Close any programs that are currently running and close any open windows.
2. Click Start ➙ Computer.
3. Right-click your C drive entry and then click Properties.
4. Click the Tools tab.
5. Click Defragment Now, then click Continue.
6. Click Defragment Now again to start a disk-defragmentation process.

Printer problems
Printer is supported by some certain computer models.
Symptom: The printer does not work.
Actions: Verify that:
1. The printer is turned on and is online.
2. Paper is loaded correctly.
3. The printer signal cable is securely connected to the correct parallel, serial, or USB connector on the
computer.
Note: Non-IEEE-approved printer signal cables might cause unpredictable problems.
1. Any device drivers and other software that came with the printer are correctly installed.
2. You have assigned the printer port correctly in your operating system, application program, or BIOS
settings. For more information about BIOS settings, see Chapter 6 “Using the Setup Utility program”
on page 53.
If the problem persists, run the tests described in the documentation that comes with your printer. If you
cannot correct the problem, have the computer serviced. See “Additional information resources” on page 31.

Serial port problems
Serial port is available with some certain computer models.
Use this information to troubleshoot the serial port and devices attached to the serial port.
Symptom: Serial port cannot be accessed.
Actions:
• Make sure the serial cable is securely connected to the serial port on the computer and to the serial device.
If the serial device has its own power cord, make sure it is attached to a properly grounded electrical outlet.

Chapter 5. Troubleshooting and diagnostics

• If the serial device has its own On/Off switch, make sure it is in the On position.
• If the serial device has an Online switch, make sure it is in the Online position.
• If the serial device is a printer, make sure paper is loaded correctly.
• Verify that any software supplied with the serial device is correctly installed. Refer to the documentation
for the serial-device option.
• Make sure that the serial-port adapter, if you added one, is properly installed and firmly seated.
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostics” on page 51 for
instructions). If you need technical assistance, see “Additional information resources” on page 31.

Software problems
Select your symptom from the following list:
•

“When using a sort feature, dates do not sort in the correct order” on page 50

•

“Software does not work as expected” on page 50

When using a sort feature, dates do not sort in the correct order
Symptom: When using a sort feature, dates do not sort in the correct order.
Action: Some software developed before the year 2000 used only the last two digits of a year to sort
dates, always assuming the first two digits were 19. Consequently, these programs sort dates out of order.
Check with your software manufacturer to see if any updates are available. Many software manufacturers
make updates available from the World Wide Web.

Software does not work as expected
Symptom: Software does not work as expected.
Actions:
• Most software programs have built-in help systems that provide instructions for most tasks. If you are
having difficulty performing a specific task within a software program, refer to the help system for that
program. Help systems are typically accessible from a menu or button in the program, and frequently
from the F1 key.
• If you are having difficulty with the Windows operating system or one of its components, refer to the
Windows help system. It is accessible from the Windows Start menu.
• To determine if problems are caused by newly installed software, verify that:
– Your computer has the minimum memory requirements needed to use the software. See the
information supplied with the software to verify memory requirements. (If you just installed an adapter
or memory, you might have a memory-address conflict.)
– The software is designed to operate on your computer.
– Other software works on your computer.
– The software you are using works correctly on another computer.
• If you received any error messages while using the software program, see the printed documentation
supplied with the software or the help system for that software for a description of the messages and
solutions to the problem.
• Check with your software manufacturer to see if any updates are available. Many software manufacturers
make updates available from the World Wide Web.

ThinkCentre Hardware Maintenance Manual

• If the software program used to work correctly, but does not work correctly now, do the following:
On the Windows 7 operating system, click Start ➙ Control Panel ➙ System and Security ➙ System ➙
System Protection ➙ System Restore.
• If you are unable to resolve the problem through other methods, uninstall the software program and
reinstall it.
If these actions do not correct the problem, you might need technical assistance. Contact your software
manufacturer or see “Additional information resources” on page 31 for details.

USB problems
Symptom: The USB connectors cannot be accessed.
Actions:
• Make sure the USB cable is securely connected to the USB connector and to the USB device. If the USB
device has its own power cord, make sure it is attached to a properly grounded electrical outlet.
• If the USB device has its own On/Off switch, make sure it is in the On position.
• If the USB device has an Online switch, make sure it is in the Online position.
• If the USB device is a printer, make sure paper is loaded correctly.
• Make sure any device drivers or other software supplied with the USB device is correctly installed.
Refer to the documentation for the USB device.
• Reset the device by detaching and reattaching the USB connector.
If these actions do not correct the problem, run the diagnostic programs to test the USB connector (see
“Diagnostics” on page 51 for instructions). If the USB device came with its own diagnostics, run those
diagnostics against the USB device. If you need technical assistance, see “Additional information resources”
on page 31.

Diagnostics
Diagnostic programs are used to test hardware components of your computer. Diagnostic programs can
also report operating-system-controlled settings that interfere with the correct operation of your system.
You can use the preinstalled diagnostic program to diagnose computer problems, if your computer is
running in the Windows® operating system.
Notes:
1. Your computer is preinstalled with either the Lenovo Solution Center program for diagnostic purposes.
For more information about the Lenovo Solution Center program, see “Lenovo Solution Center” on
page 51.
2. If you are unable to isolate and repair the problem yourself after running the diagnostic program, save
and print the log files created by the diagnostic program. You will need the log files when you speak to a
Lenovo technical support representative.

Chapter 5. Troubleshooting and diagnostics

• The Lenovo Solution Center program is available only on models preinstalled with the Windows 7
operating system. If your Windows 7 model is not preinstalled with the program, you can download it
from http://www.lenovo.com/diagnose.
• If you are using the Windows Vista or Windows XP operating system, go to
http://www.lenovo.com/diagnose for the latest information on diagnostics for your
computer.
To run the Lenovo Solution Center program on the Windows 7 operating system, click Start ➙ All Programs
➙ Lenovo ThinkVantage Tools ➙ System Health and Diagnostics. Follow the instructions on the screen.
For additional information, refer to the Lenovo Solution Center help system.
Note: If you are unable to isolate and repair the problem yourself after running the program, save and print
the log files created by the program. You will need the log files when you speak to a Lenovo technical
support representative.

ThinkCentre Hardware Maintenance Manual

Chapter 6. Using the Setup Utility program
The Setup Utility program is used to view and change the configuration settings of your computer, regardless
of which operating system you are using. However, the operating system settings might override any similar
settings in the Setup Utility program.

Starting the Setup Utility program
To start the Setup Utility program, do the following:
1. Make sure your computer is turned off.
2. Repeatedly press and release the F1 key when turning on the computer. When you hear multiple
beeps or see a logo screen, release the F1 key.
Note: If a Power-On Password or an Administrator Password has been set, the Setup Utility program
menu will not be displayed until you type the correct password. For more information, see “Using
passwords” on page 53.
When the POST detects that the hard disk drive has been removed from your computer or the memory
module size has decreased, an error message will be displayed when you start the computer and you will be
prompted to do one of the following:
• Press F1 to enter the Setup Utility program.
Note: After you enter the Setup Utility program, select Save Changes and Exit at the bottom of the
screen. The error message will not be displayed again.
• Press F2 to bypass the error message and log in to the operating system.
Note: You have to enable the configuration change detection feature for the POST to detect the removal of
the hard disk drive. To enable the configuration change detection feature, do the following:
1. Start the Setup Utility program.
2. From the Setup Utility program main menu, select Security ➙ Configuration Change Detection,
and press Enter.
3. Select Enabled and press Enter.
4. Press F10 to save changes and exit the Setup Utility program. Press Enter when prompted to confirm
the exit.

Viewing and changing settings
The Setup Utility program menu lists various items about the system configuration. To view or change
settings, start the Setup Utility program. See “Starting the Setup Utility program” on page 53. Then, follow
the instructions on the screen.
You can use the keyboard to navigate through BIOS menu choices. The keys used to perform various
tasks are displayed at the bottom of each screen.

Using passwords
By using the Setup Utility program, you can set passwords to prevent unauthorized access to your computer
and data. The following types of passwords are available:
• Power-On Password
© Copyright Lenovo 2012

• Administrator Password
• Hard Disk Password
You do not have to set any passwords to use your computer. However, using passwords improves
computing security. If you decide to set any passwords, read the following sections.

Password considerations
A password can be any combination of up to 64 alphabetic and numeric characters. For security reasons, it
is recommended to use a strong password that cannot be easily compromised. To set a strong password,
use the following guidelines:
• Have at least eight characters in length
• Contain at least one alphabetic character and one numeric character
• Setup Utility program and hard disk drive passwords are not case sensitive
• Not be your name or your user name
• Not be a common word or a common name
• Be significantly different from your previous passwords

Power-On Password
When a Power-On Password is set, you are prompted to type a valid password each time the computer is
turned on. The computer cannot be used until the valid password is typed in.

Administrator Password
Setting an Administrator Password deters unauthorized users from changing configuration settings. If you
are responsible for maintaining the configuration settings of several computers, you might want to set an
Administrator Password.
When an Administrator Password is set, you are prompted to type a valid password each time you try to
access the Setup Utility program. The Setup Utility program cannot be accessed until a valid password
is typed in.
If both the Power-On Password and Administrator Password are set, you can type either password. However,
you must use your Administrator Password to change any configuration settings.

Hard Disk Password
Setting a Hard Disk Password prevents unauthorized access to the data on the hard disk drive. When a
Hard Disk Password is set, you are prompted to type a valid password each time you try to access the
hard disk drive.
Notes:
• After you set a Hard Disk Password, your data on the hard disk drive is protected even if the hard disk
drive is removed from one computer and installed in another.
• If the Hard Disk Password is forgotten, there is no way to reset the password or recover data from the
hard disk drive.

Setting, changing, and deleting a password
To set, change, or delete a password, do the following:
1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 53.

ThinkCentre Hardware Maintenance Manual

2. From the Setup Utility program main menu, select Security.
3. Depending on the password type, select Set Power-On Password, Set Administrator Password, or
Hard Disk Password.
4. Follow the instructions on the right side of the screen to set, change, or delete a password.
Note: A password can be any combination of up to 64 alphabetic and numeric characters. For more
information, see “Password considerations” on page 54.

Enabling or disabling a device
This section provides information on how to enable or disable user access to the following devices:
USB Setup

Use this option to enable or disable a USB connector. When a USB connector is
disabled, the device connected to the USB connector cannot be used.

SATA Controller

When this feature is set to Disable, all devices connected to the SATA connectors
(such as hard disk drives or the optical drive) are disabled and cannot be accessed.

To enable or disable a device, do the following:
1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 53.
2. From the Setup Utility program main menu, select Devices.
3. Depending on the device you want to enable or disable, do one of the following:
• Select USB Setup to enable or disable a USB device.
• Select ATA Drive Setup to enable or disable a SATA device.
4. Select the desired settings and press Enter.
5. Press F10 to save and exit the Setup Utility program. See “Exiting the Setup Utility program” on page 56.

Selecting a startup device
If your computer does not start up from a device such as the disc or hard disk drive as expected, do one of
the following to select the startup device you want.

Selecting a temporary startup device
Use this procedure to select a temporary startup device.
Note: Not all discs and hard disk drives are bootable.
1. Turn off your computer.
2. Repeatedly press and release the F12 key when turning on the computer. When the Startup Device
Menu window displays, release the F12 key.
3. Select the desired startup device and press Enter. The computer will start up from the device you
selected.
Note: Selecting a startup device from the Startup Device Menu window does not permanently change
the startup sequence.

Selecting or changing the startup device sequence
To view or permanently change the configured startup device sequence, do the following:
1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 53.
2. From the Setup Utility program main menu, select Startup.

Chapter 6. Using the Setup Utility program

3. Select the devices for the Primary Boot Sequence, the Automatic Boot Sequence, and the Error Boot
Sequence. Read the information displayed on the right side of the screen.
4. Press F10 to save and exit the Setup Utility program. See “Exiting the Setup Utility program” on page 56.

Exiting the Setup Utility program
After you finish viewing or changing settings, press Esc to return to the Setup Utility program main menu.
You might have to press Esc several times. Do one of the following:
• If you want to save the new settings, press F10 to save and exit the Setup Utility program.
• If you do not want to save the settings, select Exit ➙ Discard Changes and Exit, and then press Enter.
When the Reset Without Saving window shows, select Yes, and then press Enter to exit the Setup
Utility program.
• If you want to return to the default settings, press F9 to load the default settings, and then press F10 to
save and exit the Setup Utility program.

ThinkCentre Hardware Maintenance Manual

Chapter 7. Symptom-to-FRU Index
The Symptom-to-FRU index lists error symptoms and possible causes. The most likely cause is listed first.
Always begin with Chapter 4 “General Checkout” on page 33. This index can also be used to help you
decide which FRUs to have available when servicing a computer. If you are unable to correct the problem
using this index, go to “Undetermined problems” on page 60.
Notes:
• If you have both an error message and an incorrect audio response, diagnose the error message first.
• If you cannot run the diagnostic tests or you get a diagnostic error code when running a test, but did receive a
POST error message, diagnose the POST error message first.
• If you did not receive any error message, look for a description of your error symptoms in the first part of this index.

Hard disk drive boot error
A hard disk drive boot error can have the following causes.
Error

FRU/Action

The start-up drive is not in the boot sequence in
configuration.

Check the configuration and ensure the start-up drive is
in the boot sequence.

No operating system installed on the boot drive.

Install an operating system on the boot drive.

The boot sector on the startup drive is corrupted.

The drive must be formatted. Do the following:
1. Attempt to back up the data on the failing hard disk
drive.
2. Using the operating system programs, format the
hard disk drive.

The drive is defective.

Replace the hard disk drive.

Power Supply Problems
If you suspect a power problem, use the following procedures.
Check/Verify

FRU/Action

Check the following for proper installation.

Reseat connectors

• Power cord
• On/Off switch connector
• On/Off switch power supply connector
• System board power supply connectors
• Microprocessor(s) connection
Check the power cord for continuity.

Power cord

Check the power-on switch for continuity.

Power-on switch

Beep symptoms
Beep symptoms are tones or a series of tones separated by pauses (intervals without sound) during POST.

The following tables describes beep symptoms.
Beep Symptom

FRU/Action

2 short beeps CMOS setting error

Common error code, see the detail failure information in
“POST error codes” on page 58.

3 short and 1 long beeps DRAM memory error

Perform the following actions in order.
1. Make sure the memory module(s) are properly seated
in the connector(s).
2. Replace the memory module(s).
3. Replace the system board.

POST error codes
Each time you power-on the system, it performs a series of tests that check the operation of the system
and some options. This series of tests is called the Power-On Self-Test, or POST. POST does the following
operations.
• Checks some basic system-board operations
• Checks the memory operation
• Starts the video operation
• Verifies that the boot drive is working
If the POST detects a problem, an error message appears on the screen. A single problem can cause several
error messages to appear. When you correct the cause of the first error message, the other error messages
probably will not appear on the screen the next time you turn on the system.
Error code

POST Error Message

Description/Action

0135

Fan failure

The system might be overheating.
Press F1 to enter Setup, F2 to resume.
Note: If the problem is caused by the
microprocessor fan, press F10 will
not solve the problem.

0211

Keyboard not found

When there is no keyboard detected,
the error message will be displayed.

0164

Memory size decreased

Press F1 to enter Setup, F2 to resume.

1762

Configuration change has occurred

This error message is displayed when
a hard disk drive or optical drive
change has been made.
Press F1 to enter Setup, F2 to resume.

1962

No operating system found. Press
any key to repeat boot sequence.

This error occurs only after the POST
is completed.
Press any key to repeat boot
sequence.

ThinkCentre Hardware Maintenance Manual

Miscellaneous error conditions
Message/Symptom

FRU/Action

Changing display colors

Display/Monitor

Computer will not power-off. See “Hard disk drive boot
error” on page 57.

1. Power Switch
2. System Board
3. Riser card, if installed.

Computer will not RPL from server

1. Ensure that network is in startup sequence as first
device or first device after diskette.
2. Ensure that network adapter is enabled for RPL.
3. Network adapter (Advise network administrator of
new MAC address)

Computer will not perform a Wake On LAN® (if applicable)

1. Check power supply and signal cable connections
to network adapter.
2. Ensure that the operating system settings are set to
enable Wake on LAN.
3. Ensure Wake On LAN feature is enabled in
Setup/Configuration (see “Starting the Setup Utility
program” on page 53)
4. Ensure network administrator is using correct MAC
address.
5. Ensure no interrupt or I/O address conflicts.
6. Network adapter (advise network administrator of
new MAC address)

Dead computer. See “Hard disk drive boot error” on page
57.

1. Power Supply

Diskette drive in-use light remains on or does not light
when drive is active.

1. Diskette Drive

2. System Board
2. System Board
3. Diskette Drive Cable

Blank screen except for flashing cursor.

1. System Board
2. Primary Hard Disk Drive
3. Hard Disk Drive Cable

Incorrect memory size during POST

1. Run the Memory tests.
2. Memory Module
3. System Board

"Insert a Diskette" icon appears with a known-good
diagnostics diskette in the first 3.5-inch diskette drive.

1. System Board
2. Diskette Drive Cable
3. Network Adapter

Intensity or color varies from left to right of characters
and color bars

1. Display
2. Video adapter (if present)
3. System Board

No power or fan not running

1. See “Hard disk drive boot error” on page 57.

Chapter 7. Symptom-to-FRU Index

Message/Symptom
Non-system disk or disk error-type message with a
known-good diagnostic diskette.

FRU/Action
1. Diskette Drive
2. System Board
3. Diskette Drive Cable

Other display symptoms not listed above (including blank
or illegible display)

1. Display

Power-on indicator or hard disk drive in-use light not on,
but computer works correctly

1. Power switch/LED assembly

Printer problems

1. Printer

2. System Board

2. System Board
2. System Board

Program loads from the hard disk with a known-good
diagnostics diskette in the first 3.5-inch diskette drive

1. Run the Setup Utility program and check Startup
sequence.
2. Diskette Drive
3. Diskette Drive Cable
4. System Board
5. Power Supply

RPL computer cannot access programs from its own hard
disk.

1. If network administrator is using LCCM Hybrid RPL,
check startup sequence:
a. First device - network
b. Second device - hard disk
2. Hard disk drive

RPL computer does not RPL from server

1. Check startup sequence.
2. Check the network adapter LED status.

Serial or parallel port device failure (system board port)

1. External Device Self-Test OK?
2. External Device
3. Cable
4. System Board

Serial or parallel port device failure (adapter port)

1. External Device Self-Test OK?
2. External Device
3. Cable
4. Alternate Adapter
5. System Board

Some or all keys on the keyboard do not work

1. Keyboard
2. Keyboard Cable
3. System Board

Undetermined problems
This section provides instructions on how to find out the failing devices or adapters.
1. Power-off the computer.
2. Remove or disconnect the following components (if installed) one at a time.
a. External devices (modem, printer, or mouse)
b. Any adapters
c. Memory modules
60

ThinkCentre Hardware Maintenance Manual

d. Extended video memory
e. External Cache
f. External Cache RAM
g. Hard disk drive
h. Diskette drive
3. Power-on the computer to re-test the system.
4. Repeat steps 1 through 3 until you find the failing device or adapter.
If all devices and adapters have been removed, and the problem continues, replace the system board.

Chapter 7. Symptom-to-FRU Index

ThinkCentre Hardware Maintenance Manual

Chapter 8. Locations
This chapter introduces the locations of the computer hardware components.

Locating connectors, controls, and indicators on the front of your
computer
Figure 1 “Front connector, control, and indicator locations” on page 63 shows the locations of the
connectors, controls, and indicators on the front of your computer.

Figure 1. Front connector, control, and indicator locations

1 Integrated Microphone

6 Hard disk drive activity indictor

2 Integrated camera indicator

7 Brightness-up / Auto-adjusting control

3 Integrated camera block shield

8 Brightness-down control

4 Liquid crystal display (LCD) panel

9 Frame stand

5 Power switch

Locating connectors on the rear of your computer
Figure 2 “Rear connector locations” on page 64 shows the locations of the connectors on the rear of your
computer. Some connectors on the rear of your computer are color-coded to help you determine where to
connect the cables on your computer.

Figure 2. Rear connector locations
1 Optical drive

8 DisplayPort connector (optional)

2 USB connectors (USB ports 3 to 6)

9 Card reader

3 Power cord connector

10 USB connector (USB port 2)

4 Ethernet connector

11 Headphone connector

5 PS/2 keyboard connector (optional)

12 Microphone connector

ThinkCentre Hardware Maintenance Manual

6 PS/2 mouse connector (optional)

13 USB connector (USB port 1)

7 Serial port

Chapter 8. Locations

Locating major FRUs and CRUs
Figure 3 “Locating major FRUs and CRUs” on page 67 shows the locations of the major FRUs and CRUs in
the computer. To remove the computer cover, see “Removing the computer cover” on page 79.

ThinkCentre Hardware Maintenance Manual

Figure 3. Locating major FRUs and CRUs

Chapter 8. Locations

The following table lists the major FRUs shown in Figure 3 “Locating major FRUs and CRUs” on page 67 and
identifies which FRUs are also self-service CRUs or optional-service CRUs.
Notes:
• Self-service CRUs: These CRUs unplug or are secured by no more than two screws. Examples of
these types of CRUs include the keyboard, the mouse, any USB device, and the power cord. Other
self-service CRUs depending on product design might include memory modules, adapter cards, hard
disk drives, and optical drives.
• Optional-service CRUs: These CRUs are isolated parts within the computer and are concealed by an
access panel that is typically secured by more than two screws. Once the access panel is removed, the
specific CRU is visible.
Number

FRU description

Self-service CRU

Optional-service CRU

System stand hinge cover

System stand

Computer cover

System board shield window

System board shield

Handle bar

Heat sink assembly

Microprocessor

Memory module

Battery

Microprocessor fan

System board

Card reader

Internal speaker

WI-FI connector

Power supply

Rear I/O connector

Frame stand

Internal speaker

Control button board

Hard disk drive

LCD bracket

LCD panel

Inverter

Optical drive

VESA mount bracket

Integrated camera

Keyboard

Yes

Mouse

Yes

ThinkCentre Hardware Maintenance Manual

Looking up FRU information
For detailed FRU information, such as the FRU part numbers and supported computer models, go to:
http:/www.lenovo.com/serviceparts-lookup

Chapter 8. Locations

System board parts and connectors
The following illustration shows the locations of the system board parts and connectors.

Figure 4. System board part and connector locations
1 Integrated camera cable connector

9 SATA connector

2 Memory slots (2)

10 Microprocessor fan connector

3 Battery

11 SATA connector

4 Card reader connector

12 Optical drive power connector/Hard disk drive power
connector

5 Internal speaker cable connector

13 Inverter connector

6 Control button connector

14 Power supply connector

7 LCD panel connector

15 Microprocessor

8 WI-FI connector

ThinkCentre Hardware Maintenance Manual

Chapter 9. Replacing FRUs
This chapter provides removal or replacement procedures for major FRUs. Not all FRUs are documented.
Important
Before you replace any FRU, read Chapter 2 “Safety information” on page 3. These precautions and
guidelines will help you work safely.
FRU replacements are to be done by trained service technicians only.

Removing and reinstalling the system stand hinge cover
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to remove and reinstall the system stand hinge cover.
CAUTION:
Turn off the computer and wait three to five minutes to let the computer cool before removing the
system stand hinge cover.
To remove and reinstall the system stand hinge cover, do the following:
1. Remove any media from the drives and turn off all attached devices and the computer.
2. Disconnect all power cords from electrical outlets.
3. Disconnect the power cords, Input/Output cables, and any other cables that are connected to the
computer. See “Locating connectors, controls, and indicators on the front of your computer” on page
63 and “Locating connectors on the rear of your computer” on page 64.
4. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay
it down so that the screen is against the surface and the cover is facing up.
5. Remove the screw that secures the system stand hinge cover, and then lift the system stand hinge cover
up and remove it from the computer.

Figure 5. Removing the system stand hinge cover

6. To reinstall the system stand hinge cover, place the system stand hinge cover on the computer so that
the two plastic tabs on the hinge cover align with the corresponding holes in the computer.

Figure 6. Reinstalling the system stand hinge cover

7. Reinstall the screw to secure the system stand hinge cover to the computer.

ThinkCentre Hardware Maintenance Manual

Figure 7. Reinstalling the screw to secure the system stand hinge cover to the computer

Removing and reinstalling the system stand
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to remove and reinstall the system stand.
To remove and reinstall the system stand, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the system stand hinge cover. See “Removing and reinstalling the system stand hinge cover”
on page 71.

Chapter 9. Replacing FRUs

3. Remove the two screws that secure the system stand, and then lift the system stand up and remove
it from the computer.

Figure 8. Removing the system stand

4. To reinstall the system stand, align the two screw holes with the corresponding holes in the chassis, and
then install the two screws to secure the system stand to the computer.

Figure 9. Reinstalling the system stand

5. Reinstall the system stand hinge cover. See “Removing and reinstalling the system stand hinge cover”
on page 71.

ThinkCentre Hardware Maintenance Manual

Removing and reinstalling the monitor stand
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to remove and reinstall the monitor stand.
CAUTION:
Turn off the computer and wait three to five minutes to let the computer cool before removing the
monitor stand.
To remove and reinstall the monitor stand, do the following:
1. Remove any media from the drives and turn off all attached devices and the computer.
2. Disconnect all power cords from electrical outlets.
3. Disconnect the power cords, Input/Output cables, and any other cables that are connected to the
computer. See “Locating connectors, controls, and indicators on the front of your computer” on page
63 and “Locating connectors on the rear of your computer” on page 64.
4. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay
it down so that the screen is against the surface and the cover is facing up.
5. Remove the four screws that secure the monitor stand, and then remove the monitor stand from the
computer.

Figure 10. Removing the monitor stand

Chapter 9. Replacing FRUs

6. To reinstall the monitor stand, align the four screw holes with the corresponding holes in the chassis,
and then install the four screws to secure the monitor stand to the computer.

Figure 11. Reinstalling the monitor stand

Removing and reinstalling the frame stand
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to remove and reinstall the frame stand.
CAUTION:
Turn off the computer and wait three to five minutes to let the computer cool before removing the
frame stand.
To remove and reinstall the frame stand, do the following:
1. Remove any media from the drives and turn off all attached devices and the computer.
2. Disconnect all power cords from electrical outlets.
3. Disconnect the power cords, Input/Output cables, and any other cables that are connected to the
computer. See “Locating connectors, controls, and indicators on the front of your computer” on page
63 and “Locating connectors on the rear of your computer” on page 64.
4. Place a soft, clean towel or cloth on the desk or the surface. Hold the sides of your computer and gently
lay it down so that the screen is against the surface and the cover is facing up.
5. Remove the four screws that secure the frame stand, and then pull the frame stand out of the computer.

ThinkCentre Hardware Maintenance Manual

Figure 12. Removing the frame stand

Chapter 9. Replacing FRUs

6. To reinstall the frame stand, place the frame stand on the computer so that the screw hole aligns with
the corresponding hole in the computer.

Figure 13. Reinstalling the frame stand to the computer

7. Reinstall the four screws to secure the frame stand to the computer.

ThinkCentre Hardware Maintenance Manual

Removing the computer cover
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to remove the computer cover.
CAUTION:
Turn off the computer and wait three to five minutes to let the computer cool before
removing the computer cover.
To remove the computer cover, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove any locking device that secures the computer cover, such as an integrated cable lock.
4. Remove the system stand. See “Removing and reinstalling the system stand” on page 73.
5. Loosen the two screws 1 at the bottom of the computer. Put your index finger or thumb in the finger
slot 2 , and then lift the computer cover up to remove it from the computer.

Figure 14. Removing the computer cover

Replacing the hard disk drive
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of

Chapter 9. Replacing FRUs

the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the hard disk drive.
To replace the hard disk drive, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 79.
3. Locate the hard disk drive in the computer. See “Locating major FRUs and CRUs” on page 66.
4. Remove the screw that secures the hard disk drive.

Figure 15. Removing the screw that secures the hard disk drive

5. Disconnect the hard disk drive cable and slide the hard disk drive out of the chassis.

ThinkCentre Hardware Maintenance Manual

Figure 16. Removing the hard disk drive

6. Remove the four screws on the hard disk drive bracket, then remove the hard disk drive out of the
bracket. Do not touch the circuit board on the bottom of the hard disk drive.

Figure 17. Removing the hard disk drive out of the bracket

7. To install the new hard disk drive into the bracket, position the hard disk drive so that the four screw
holes align with those in the bracket.
8. Install the four screws that secure the hard disk drive to the hard disk drive bracket.
9. Connect the hard disk drive cable.
10. Slide the new hard disk drive with the bracket into the hard disk drive bay. Align the screw hole in the
hard disk drive with that in the chassis.
11. Install the screw to secure the hard disk drive bracket to the chassis.
12. Go to “Completing the parts replacement” on page 109.

Chapter 9. Replacing FRUs

Replacing the optical drive
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the optical drive.
Note: The optical drive is available only in some models.
To replace the optical drive, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Locate the optical drive. See “Locating major FRUs and CRUs” on page 66.
5. Remove the screw 1 that secures the optical drive, and then slide the optical drive to disconnect the
optical drive from the optical drive cable. Remove the optical drive out of the optical drive bay.

Figure 18. Removing the optical drive

6. To install a new optical drive, slide the new optical drive into the optical drive bay to connect the cable to
the optical drive.

ThinkCentre Hardware Maintenance Manual

Figure 19. Installing the optical drive

7. Install the screw to secure the optical drive.

Figure 20. Installing the screw to secure the optical drive

8. Go to “Completing the parts replacement” on page 109.

Removing the VESA mount bracket
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to remove the VESA mount bracket.

Chapter 9. Replacing FRUs

To remove the VESA mount bracket, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Locate the VESA mount bracket. See “Locating major FRUs and CRUs” on page 66.
5. Remove the four screws 1 that secure the VESA mount bracket and lift the VESA mount bracket
out of the computer.

Figure 21. Removing the VESA mount bracket

6. To reinstall the VESA mount bracket, position the VESA mount bracket into the computer so that the
screw holes align with those in the computer. Reinstall the four screws to secure the VESA mount
bracket.
7. Go to “Completing the parts replacement” on page 109.

Replacing the rear I/O assembly
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the rear I/O assembly.
To replace the rear I/O assembly, do the following:
84

ThinkCentre Hardware Maintenance Manual

Figure 22. Removing the two screws that secure the rear I/O assembly

Chapter 9. Replacing FRUs

6. Turn the rear I/O assembly up side down, and then remove the two screws that secure the power cord
connector to the power cord connector bracket. Remove the rear I/O assembly from the computer.

Figure 23. Removing the power cord connector

7. To reinstall the rear I/O assembly, reinstall the two screws that secure the power cord connector to the
power cord connector bracket. Position the new rear I/O assembly into place, and then align the
screw holes with the corresponding holes in the computer main bracket. Install the two screws to
secure the rear I/O assembly.
8. Go to “Completing the parts replacement” on page 109.

Removing and reinstalling the system board shield
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to remove and reinstall the system board shield.
To remove and reinstall the system board shield, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Locate the system board shield in the computer. See “Locating major FRUs and CRUs” on page 66.

ThinkCentre Hardware Maintenance Manual

5. Remove the screw that secures the system board shield, and then slide the system board shield out
of the computer.

Figure 24. Removing the system board shield

6. To reinstall the system board shield, slide the system board shield into the system board shield slot so
that the screw hole aligns with that in the computer.
7. Reinstall the screw to secure the system board shield to the computer.
8. Go to “Completing the parts replacement” on page 109.

Replacing the power supply
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the power supply.
To replace the power supply, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Remove the VESA mount bracket. See “Removing the VESA mount bracket” on page 83.
5. Locate the power supply. See “Locating major FRUs and CRUs” on page 66.
6. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 86.
7. Disconnect the power supply cables from the system board. See “System board parts and connectors”
on page 70.
8. Remove the rear I/O assembly, and then remove the power cord connector from the power cord
connector bracket. See “Replacing the rear I/O assembly” on page 84.

Chapter 9. Replacing FRUs

9. Remove the three screws 1 that secure the power supply, and then remove the power supply out
of the computer.

Figure 25. Removing the three screws that secure the power supply

10. To reinstall the power supply, reinstall the two screws that secure the power cord connector to the
power connector bracket. See “Replacing the rear I/O assembly” on page 84.
11. Position the new power supply in the computer and align the three screw holes in the new power supply
with those in the computer main bracket. Install the three screws to secure the new power supply.
12. Route the new power cord connector cable, and then reinstall the rear I/O assembly. See “Replacing
the rear I/O assembly” on page 84.
13. Connect the new power supply cables to the power supply connectors on the system board. See
“System board parts and connectors” on page 70.
14. Reinstall the system board shield. See “Removing and reinstalling the system board shield” on page 86.
15. Reinstall the VESA mount bracket. See “Removing the VESA mount bracket” on page 83.
16. Reinstall the computer cover. See “Removing the computer cover” on page 79.
17. Go to “Completing the parts replacement” on page 109.

Replacing the microprocessor fan
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the microprocessor fan.
To replace the microprocessor fan, do the following:

ThinkCentre Hardware Maintenance Manual

1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Locate the microprocessor fan in the computer. See “Locating major FRUs and CRUs” on page 66.
5. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 86.
6. Note the routing of the microprocessor fan cable, and then disconnect the microprocessor fan cable
from the system board. See “System board parts and connectors” on page 70.
7. Remove the two screws 1 that secure the microprocessor fan to the main bracket. Then, lift the
microprocessor fan off the main bracket.

Figure 26. Removing the microprocessor fan

8. To reinstall the microprocessor fan, position the new microprocessor fan on the main bracket and align
the screw holes in the new microprocessor fan with those in the main bracket. Reinstall the two screws
that secure the microprocessor fan to the main bracket.
9. Connect the new microprocessor fan cable to the system board. See “System board parts and
connectors” on page 70.
10. Reinstall the system board shield. See “Removing and reinstalling the system board shield” on page 86.
11. Reinstall the computer cover. See “Removing the computer cover” on page 79.
12. Go to “Completing the parts replacement” on page 109.

Replacing the heat sink assembly
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of

Chapter 9. Replacing FRUs

the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the heat sink assembly.
CAUTION:
The heat sink and fan assembly might be very hot. Turn off the computer and wait three to five
minutes to let the computer cool before removing the computer cover.
To replace the heat sink assembly, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Locate the heat sink assembly on the system board. See “Locating major FRUs and CRUs” on page 66.
5. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 86.
6. Follow the sequence 1 , 2 , 3 , 4 on the heat sink assembly to loose the four screws that secure the
heat sink assembly to the system board.
Note: Carefully loose the four screws from the system board to avoid any possible damage to the
system board. The four screws cannot be removed from the heat sink assembly.

Figure 27. Loosing the four screws that secure the heat sink assembly to the system board

7. Lift the failing heat sink assembly off the system board.
Notes:
a. You might have to gently twist the heat sink assembly to free it from the microprocessor.
b. Do not touch the thermal grease while handling the heat sink assembly.
8. To reinstall the heat sink assembly, position the new heat sink assembly on the system board so that the
four screws are aligned with the corresponding holes in the system board.

ThinkCentre Hardware Maintenance Manual

9. Follow the sequence 1 , 2 , 3 , 4 on the heat sink assembly to tighten the four screws to secure the heat
sink assembly to the system board, as shown in Figure 27 “Loosing the four screws that secure the heat
sink assembly to the system board” on page 90.
10. Reinstall the system board shield. See “Removing and reinstalling the system board shield” on page 86.
11. Go to “Completing the parts replacement” on page 109.

Replacing the microprocessor
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the microprocessor.
CAUTION:
The heat sink and fan assembly might be very hot. Turn off the computer and wait three to five
minutes to let the computer cool before removing the computer cover.
To replace the microprocessor, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Locate the microprocessor on the system board. See “Locating major FRUs and CRUs” on page 66.
5. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 86.
6. Remove the heat sink assembly to gain access to the microprocessor. See “Replacing the heat sink
assembly” on page 89.
7. Press the small handle 1 to open the retainer 2 to access the microprocessor 3 .

Chapter 9. Replacing FRUs

Figure 28. Opening the retainer to access the microprocessor

8. Lift the microprocessor straight up and out of the socket.
Notes:
a. Your microprocessor and socket might look different from the one illustrated.
b. Note the orientation of the microprocessor in the socket. You can either look for the small triangle 1
on one corner of the microprocessor or note the orientation of the notches 2 on the microprocessor.
This is important when installing a new microprocessor on the system board.

Figure 29. Noting the orientation of the microprocessor in the socket

c. Touch only the sides of the microprocessor. Do not touch the gold contacts on the bottom.
d. Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must be
kept as clean as possible.

ThinkCentre Hardware Maintenance Manual

Figure 30. Removing the microprocessor

9. Make sure that the small handle is in the raised position and the microprocessor retainer is fully open.
10. Hold the new microprocessor and align the notches 2 on it with the alignment keys in the
microprocessor socket, or align the small triangle 1 on one corner of the new microprocessor with the
corresponding beveled corner of the microprocessor socket.

Figure 31. Installing the microprocessor

11. Lower the new microprocessor straight down into the microprocessor socket on the system board.
12. Close the microprocessor retainer and lock it into position with the small handle to secure the new
microprocessor in the socket.
13. Reinstall the heat sink assembly. See “Replacing the heat sink assembly” on page 89.
14. Reinstall the system board shield. See “Removing and reinstalling the system board shield” on page 86.
15. Go to “Completing the parts replacement” on page 109.

Chapter 9. Replacing FRUs

Replacing the card reader
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the card reader.
Note: The card reader is available only in some models.
To replace the card reader, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Locate the card reader in the computer. See “Locating major FRUs and CRUs” on page 66.
5. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 86.
6. Disconnect the card reader cable from the card reader.
7. Remove the two screws 1 that secure the card reader, and then lift the card reader out of the computer.

Figure 32. Removing the card reader

8. To reinstall the card reader, align the screw holes in the new card reader with those in the computer, and
then install the two screws to secure the card reader.
9. Connect the card reader cable to the new card reader.

ThinkCentre Hardware Maintenance Manual

10. Reinstall the system board shield. See “Removing and reinstalling the system board shield” on page 86.
11. Go to “Completing the parts replacement” on page 109.

Opening the system board shield window
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to open and close the system board shield window.
To open and close the system board shield window, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Locate the system board shield window. See “Locating major FRUs and CRUs” on page 66.
5. Press the upper metal tab of the system board shield window, and then pivot the system board shield
window to open it.

Figure 33. Opening the system board shield window

6. To close the system board shield window, place the system board shield window on the system board
shield. Pivot the system board shield window until the two metal tabs align with each other, and then
press the upper metal tab to snap it into the position.
7. Go to “Removing the computer cover” on page 79.

Chapter 9. Replacing FRUs

Replacing the battery
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the battery.
Your computer has a special type of memory that maintains the date, time, and settings for built-in features,
such as parallel-port assignments (configuration). A battery keeps the information active when you turn
off the computer.
The battery normally requires no charging or maintenance throughout its life. However, if the battery fails,
the date, time, and configuration information (including passwords) are lost. An error message will be
displayed when you turn on the computer.
Refer to “Lithium battery notice” in the Safety , Warranty, and Setup Guide for information about replacing
and disposing of the battery.
To replace the battery, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Locate the battery on the system board. See “Locating major FRUs and CRUs” on page 66.
5. Remove the system board shield or open the system board shield window to get access to the battery.
See “Removing and reinstalling the system board shield” on page 86 or “Opening the system board
shield window” on page 95.
6. Remove the battery.

Figure 34. Removing the battery

7. Install a new battery.

ThinkCentre Hardware Maintenance Manual

Figure 35. Installing a new battery

8. Reinstall the system board shield or close the system board shield window. See “Removing and
reinstalling the system board shield” on page 86 or “Opening the system board shield window” on
page 95.
9. Reinstall the computer cover. See “Completing the parts replacement” on page 109.
10. Turn on the computer and all attached devices.
Note: When you turn the computer for the first time after replacing the battery, an error message might
be displayed. This is normal after replacing the battery.
11. Use the Setup Utility program to set the date, time, and any passwords. See Chapter 6 “Using the Setup
Utility program” on page 53.

Replacing the inverter
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the inverter.
To replace the inverter, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay
it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Remove the optical drive. See “Replacing the optical drive” on page 82.
5. Locate the inverter in the computer. See “Locating major FRUs and CRUs” on page 66.
6. Remove the two screws that secure the inverter to the main bracket.

Chapter 9. Replacing FRUs

7. Disconnect the three cables from the inverter.
8. Lift the inverter off the computer.
9. To reinstall the new inverter, connect the three cables to the new inverter. Position the new inverter and
align the two screw holes in the new inverter with those in the computer.
10. Install the two screws to secure the new inverter to the main bracket.
11. Reinstall the optical drive. See “Replacing the optical drive” on page 82.
12. Go to “Completing the parts replacement” on page 109.

Installing or replacing a memory module
Attention:
Do not open your computer or attempt any repair before reading and understanding the “Important safety information”
in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of the Safety , Warranty,
and Setup Guide, go to:
http://www.lenovo.com/support

This section provides instructions on how to install or replace a memory module.
Your computer has two memory slots for installing or replacing DDR3 SODIMMs (small outline dual inline
memory modules). When installing or replacing a memory module, use 1 GB, 2 GB or 4 GB DDR3 SODIMMs
in any combination up to a maximum of 8 GB of system memory.
To install or replace a memory module, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
98

ThinkCentre Hardware Maintenance Manual

4. Locate the memory slots on the system board. See “Locating major FRUs and CRUs” on page 66.
5. Remove the system board shield or open the system board shield window to get access to the battery.
See “Removing and reinstalling the system board shield” on page 86 or “Opening the system board
shield window” on page 95.
6. Remove any parts and disconnect any cables that might prevent your access to the memory slots.
7. Do one of the following:
• If you are replacing a memory module, open the retaining clips and remove the old memory module
that is currently installed.

Figure 36. Removing a memory module

• If you are installing a memory module, open the retaining clips of the memory slot into which you
want to install the memory module.
8. Insert the notched end 1 of the new memory module into the slot. Press the memory module firmly
and pivot the memory module until it snaps into place. Make sure that the memory module is secured
in the slot and does not move easily.

Figure 37. Installing a memory module

9. Reinstall the system board shield or close the system board shield window. See “Removing and
reinstalling the system board shield” on page 86 or “Opening the system board shield window” on
page 95.
10. Go to “Completing the parts replacement” on page 109.

Chapter 9. Replacing FRUs

Replacing the internal speakers
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the internal speakers.
To replace the internal speakers, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Locate the internal speakers in the computer. See “Locating major FRUs and CRUs” on page 66.
5. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 86.
6. Note the location of the internal speaker cable connection and the routing of the internal speaker cables.
Disconnect the internal speaker cables from the system board.
7. Remove the two screws that secure each internal speaker to the front bezel, and then remove the
internal speakers from the computer.

Figure 38. Removing the internal speakers

8. Route the new internal speaker cables, and then position the new internal speakers on the front bezel so
that the two screw holes in each internal speaker align with those in the front bezel.
9. Reinstall the two screws to secure each of the internal speakers to the front bezel.
10. Connect the internal speaker cables to the system board. See “System board parts and connectors”
on page 70.
11. Reinstall the system board shield. See “Removing and reinstalling the system board shield” on page 86.
12. Go to “Completing the parts replacement” on page 109.

100

ThinkCentre Hardware Maintenance Manual

Replacing the integrated camera
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the integrated camera.
Note: The integrated camera is available only in some models.
To replace the integrated camera, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Locate the integrated camera in the computer. See “Locating major FRUs and CRUs” on page 66.
5. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 86.
6. Note the routing of the integrated camera cable, and then disconnect the cable from the system board.
See “System board parts and connectors” on page 70.
7. Remove the two screws that secure the integrated camera to the front bezel to remove the integrated
camera from the computer.

Figure 39. Removing the integrated camera

8. To reinstall the integrated camera, position the new integrated camera and align the two screw holes in
the new integrated camera with those in the front bezel.
9. Install the two screws to secure the new integrated camera to the front bezel.

Chapter 9. Replacing FRUs

101

10. Route the new integrated camera cable, and then connect the integrated camera cable to the system
board. See “System board parts and connectors” on page 70.
11. Reinstall the system board shield. See “Removing and reinstalling the system board shield” on page 86.
12. Go to “Completing the parts replacement” on page 109.

Replacing the system board
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the system board.
To replace the system board, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 86.
5. Locate the system board in the computer. See “Locating major FRUs and CRUs” on page 66.
6. Remove the heat sink assembly. See “Replacing the heat sink assembly” on page 89.
7. Remove the microprocessor. See “Replacing the microprocessor” on page 91.
8. Remove the memory modules. See “Installing or replacing a memory module” on page 98.
9. Remove the battery. See “Replacing the battery” on page 96.
10. Remove the rear I/O assembly to gain access to the system board. See “Replacing the rear I/O
assembly” on page 84.
11. Note the locations of all cable connections on the system board and disconnect all cables. See “System
board parts and connectors” on page 70.
12. Remove the seven screws that secure the system board to the main bracket. Carefully lift the system
board out of the chassis.

102

ThinkCentre Hardware Maintenance Manual

Figure 40. Removing the seven screws that secure the system board to the main bracket

13. Place the new system board into the chassis and align the screw holes with those in the chassis.
14. Reinstall the seven screws that secure the system board to the main bracket.
15. Reinstall the rear I/O assembly. See “Replacing the rear I/O assembly” on page 84.
16. Reinstall the battery. See “Replacing the battery” on page 96.
17. Reinstall the memory modules. See “Installing or replacing a memory module” on page 98.
18. Reinstall the microprocessor. See “Replacing the microprocessor” on page 91.
19. Reinstall the heat sink assembly. See “Replacing the heat sink assembly” on page 89.
20. Reinstall the system board shield. See “Removing and reinstalling the system board shield” on page 86.
21. Reconnect all cables that were disconnected from the system board. See “System board parts and
connectors” on page 70.
22. Go to “Completing the parts replacement” on page 109.
The failing system board must be returned with a microprocessor socket cover to protect the pins during
shipping and handling.
To install the microprocessor socket cover, do the following:
1. Release the lever securing the microprocessor retainer and open the retainer to access the
microprocessor.
2. Grasp the microprocessor on the sides and lift it straight up and out of the socket. Do not touch the
contacts on the microprocessor socket.
3. Note the orientation of the socket cover. Align the notches 1 on the microprocessor socket cover
with the alignment keys 2 on the microprocessor socket. Install one side of the socket cover into
the microprocessor socket.

Chapter 9. Replacing FRUs

103

Figure 41. Installing one side of the socket cover into the microprocessor socket

Note: Your microprocessor socket and cover might look slightly different from the illustration.
4. Carefully press the other side of the socket cover downwards until the socket cover snaps into place.
5. Carefully check the four corners of the socket cover to make sure that the cover is secured in the
microprocessor socket.
6. Lower the microprocessor retainer, and then lower the lever to secure the retainer. Make sure the
lever is locked into position.
7. Follow any additional instructions included with the replacement part you received.
Note: If your system board has two microprocessor sockets, be sure to install a socket cover for each
microprocessor socket.

Replacing the LCD panel
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the LCD panel.
To replace the LCD panel, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Remove the foot stands. See “Removing and reinstalling the frame stand” on page 76.

104

ThinkCentre Hardware Maintenance Manual

Figure 42. Removing the frame stand

5. Locate the LCD panel in the computer. See “Locating major FRUs and CRUs” on page 66.
6. Remove the optical drive. See “Replacing the optical drive” on page 82.
7. Remove the inverter. See “Replacing the inverter” on page 97.
8. Remove the rear I/O assembly. See “Replacing the rear I/O assembly” on page 84.
9. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 86.
10. Disconnect the LCD panel cable from the system board. See “System board parts and connectors”
on page 70.

Figure 43. Disconnect the LCD panel cable from the system board

Chapter 9. Replacing FRUs

105

11. Remove all the 15 screws that secure the computer main bracket to the front bezel.

Figure 44. Removing all the 15 screws that secure the computer main bracket to the front bezel

12. Note the locations of all cable connections that prevent you from lifting the computer main bracket, and
disconnect all cables. See “System board parts and connectors” on page 70.
13. Remove the integrated camera. See “Replacing the integrated camera” on page 101.
14. Lift the computer main bracket off the front bezel.
15. Remove the four screws that secure the chassis to the LCD panel, and then lift the chassis out of
the computer to get assess to the LCD panel.

Figure 45. Removing the four screws that secure the LCD panel

16. Place the computer chassis over the new LCD panel so that the four screw holes align with those in the
chassis. Reinstall the four screws to secure the LCD panel to the chassis.
17. Position the computer main bracket over the LCD panel. Make sure the screw holes in the computer
main bracket align with those in the front bezel.
18. Reinstall all the 15 screws that secure the computer main bracket to the front bezel.

106

ThinkCentre Hardware Maintenance Manual

Figure 46. Reinstalling all the 15 screws that secure the computer main bracket to the front bezel

19. Reconnect the LCD panel cable from the system board. See “System board parts and connectors”
on page 70.

Figure 47. Reconnect the LCD panel cable to the system board

20. Reinstall the integrated camera. See “Replacing the integrated camera” on page 101.
21. Reinstall the rear I/O assembly. See “Replacing the rear I/O assembly” on page 84.
22. Reinstall the system board shield. See “Removing and reinstalling the system board shield” on page 86.
23. Reinstall the foot stands. See “Removing and reinstalling the frame stand” on page 76.
24. Connect all the cables that were disconnected. See “System board parts and connectors” on page 70.
25. Go to “Completing the parts replacement” on page 109.

Chapter 9. Replacing FRUs

107

Replacing the WI-FI card
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety , Warranty, and Setup Guide that came with your computer. To obtain a copy of
the Safety , Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the WI-FI card.
Note: The WI-FI card is available only in some models.
To replace the WI-FI card, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 79.
4. Remove the system board shield. See “Removing and reinstalling the system board shield” on page 86.
5. Locate the WI-FI card on the system board. See “Locating major FRUs and CRUs” on page 66.
6. Remove the rear I/O assembly. See “Replacing the rear I/O assembly” on page 84.
7. Disconnect the two cables from the WI-FI card, and then carefully remove the screw that secures
the WI-FI card to the system board.

Figure 48. Removing the screw that secures the WI-FI card to the system board

8. Pivot the WI-FI card upward and lift the WI-FI card out of the mini PCI Express slot.

108

ThinkCentre Hardware Maintenance Manual

Figure 49. Removing the WI-FI card

9. Insert the notched end of the new WI-FI card into the mini PCI Express slot. Press the new WI-FI
card firmly, and then pivot the WI-FI card to align the screw hole in the new WI-FI card with that
in the system board.
10. Install the screw to secure the new WI-FI card to the system board.
11. Connect the two cables to the new WI-FI card.
12. Reinstall the rear I/O assembly. See “Replacing the rear I/O assembly” on page 84.
13. Reinstall the system board shield. See “Removing and reinstalling the system board shield” on page 86.
14. Go to “Completing the parts replacement” on page 109.

Completing the parts replacement
After completing the installation or replacement for all parts, you need to reinstall the computer cover
and reconnect cables.
To reinstall the computer cover and reconnect cables, do the following:
1. Make sure that all components have been reassembled correctly and that no tools or loose screws
are left inside your computer. See “Locating major FRUs and CRUs” on page 66 for the locations of
various components in your computer.
2. Make sure that the cables are routed correctly before reinstalling the computer cover. Keep cables clear
of the hinges and sides of the computer chassis to avoid interference with reinstalling the computer
cover.

Chapter 9. Replacing FRUs

109

3. Lower and position the computer cover into place and then tighten the two screws 1 to secure the
computer cover.

Figure 50. Installing the computer cover

4. Reinstall the system stand and system stand hinge cover. See “Removing and reinstalling the system
stand” on page 73 and “Removing and reinstalling the system stand hinge cover” on page 71.
5. Lock the computer cover if you have an integrated cable lock.
6. Reconnect the external cables and power cord to the computer.
7. Depending on the parts you installed or replaced, you might need to confirm the updated information in
the Setup Utility program. Refer to Chapter 6 “Using the Setup Utility program” on page 53.
Note: In most areas of the world, Lenovo requires the return of the defective Customer Replaceable Unit
(CRU). Information about this will come with the CRU or will come a few days after the CRU arrives.

110

ThinkCentre Hardware Maintenance Manual

Chapter 10. Additional Service Information
This chapter provides additional information that the service representative might find helpful.

Security features
Security features in this section include the following:
• Passwords
• Vital Product Data
• Management Information Format (MIF)

Hardware controlled Passwords
Hardware controlled passwords are set using the Setup Utility program. For more information about
passwords, see “Using passwords” on page 53.

Operating system password
An operating system password is very similar to a power-on password and denies access to the computer
by an unauthorized user when the password is activated. The computer is unusable until the password is
entered and recognized by the computer.

Vital product data
Each computer has a unique Vital Product Data (VPD) code stored in the nonvolatile memory on the system
board. After you replace the system board, the VPD must be updated. To update the VPD, see “Flash
update procedures” on page 111.

BIOS levels
An incorrect level of BIOS can cause false errors and unnecessary FRU replacement. Use the following
information to determine the current level of BIOS installed in the computer, the latest BIOS available for the
computer, and where to obtain the latest level of BIOS.
• To determine the current Level of BIOS:
– Start the Setup Utility.
– Select Standard CMOS Features.
• Sources for obtaining the latest level BIOS available
1. Lenovo support web site: http://www.lenovo.com/support/
2. Lenovo Customer Support Center
3. Levels 1 and 2 Support
To update (flash) the BIOS, see “Flash update procedures” on page 111.

Flash update procedures
This section details how to flash (update) the BIOS.

111

Note: You can download a self-starting bootable disc image (known as an ISO image) with the system
program updates to create a system-program-update disc. Go to:
http://www.lenovo.com/support
To update (flash) the BIOS from a disc, do the following:
1. Turn off your computer.
2. Repeatedly press and release the F12 key when turning on the computer. When the Startup Device
Menu window opens, release the F12 key.
3. On the Startup Device Menu window, select the desired optical drive as the startup device. Then, insert
the disc into this optical drive and press Enter. The update begins.
4. When prompted to change the serial number, it is suggested that you do not make this change by
pressing N. However, if you do want to change the serial number, press Y, then type in the serial number
and press Enter.
5. When prompted to change the machine type and model, it is suggested that you do not make this
change by pressing N. However, if you do want to change the machine type and model, press Y, then
type in the machine type and model and press Enter.
6. Follow the instructions on the screen to complete the update. After the update is completed, remove the
disc from the optical drive.

Updating (flashing) the BIOS from your operating system
Note: Because Lenovo makes constant improvements to its Web sites, the Web page contents are subject
to change without notice, including the contents referenced in the following procedure.
To update (flash) the BIOS from your operating system, do the following:
1. Go to
http://www.lenovo.com/support.
2. Do the following to locate the downloadable files for your machine type:
a. In the Enter a product number field, type your machine type and click Go.
b. Click Downloads and drivers.
c. Select BIOS from the Refine results drop-down list box to easily locate all the BIOS related links.
d. Click the BIOS update link.
3. Click the TXT file that contains the instructions for updating (flashing) the BIOS from your operating
system.
4. Print these instructions. This is very important because these instructions will not be displayed on
the screen after the download begins.
5. Follow the printed instructions to download, extract, and install the update.

Recovering from a POST/BIOS update failure
If the power to your computer is interrupted while the POST/BIOS is being updated (flash update), your
computer might not restart correctly. If this happens, perform the following procedure commonly called
Boot-block Recovery.
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 79.
3. Locate the Clear CMOS /Recovery jumper on the system board. See “System board parts and
connectors” on page 70.

112

ThinkCentre Hardware Maintenance Manual

4. Move the jumper from the standard position (pin 1 and pin 2) to the maintenance position (pin 2 and
pin 3).
5. Install the computer cover and reconnect all cables and power cords that were disconnected. See
“Completing the parts replacement” on page 109.
6. Repeatedly press and release the F12 key when turning on the computer. When the Startup Device
Menu opens, release the F12 key.
7. Insert the POST/BIOS update (flash) disc into the optical drive. Then, select the optical drive as the
startup device and press Enter. The recovery session begins.
Note: The recovery session will take two to three minutes. During this time you will hear a series
of beeps.
8. After the recovery session is completed, the series of beeps will end, and the system will automatically
turn off. Remove the disc from the optical drive before the system completely turns off.
9. Repeat steps 1 through 3.
10. Move the Clear CMOS /Recovery jumper back to the standard position (pin 1 and pin 2).
11. Install the computer cover and reconnect all cables and power cords that were disconnected. See
“Completing the parts replacement” on page 109.
12. Turn on the computer to restart the operating system.

Power management
Power management reduces the power consumption of certain components of the computer such as the
system power supply, processor, hard disk drives, and some monitors.

Automatic configuration and power interface (ACPI) BIOS
Being an ACPI BIOS system, the operating system is allowed to control the power management features
of the computer and the setting for Advanced Power Management (APM) BIOS mode is ignored. Not
all operating systems support ACPI BIOS mode.

Automatic Power-On features
The Automatic Power-On features within the Power Management menu allow you to enable and disable
features that turn on the computer automatically.
• Wake Up on Alarm: You can specify a date and time at which the computer will be turned on
automatically. This can be either a single event or a daily event.
• Wake on LAN: If the computer has a properly configured token-ring or Ethernet LAN adapter card that is
Wake on LAN-enabled and there is remote network management software, you can use the Wake on LAN
feature. When you set Wake on LAN to Enabled, the computer will turn on when it receives a specific
signal from another computer on the local area network (LAN).

Chapter 10. Additional Service Information

113

114

ThinkCentre Hardware Maintenance Manual

Appendix A. Notices
Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult
your local Lenovo representative for information on the products and services currently available in your
area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that
Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service
that does not infringe any Lenovo intellectual property right may be used instead. However, it is the user's
responsibility to evaluate and verify the operation of any other product, program, or service.
Lenovo may have patents or pending patent applications covering subject matter described in this
document. The furnishing of this document does not give you any license to these patents. You can send
license inquiries, in writing, to:
Lenovo (United States), Inc.
1009 Think Place - Building One
Morrisville, NC 27560
U.S.A.
Attention: Lenovo Director of Licensing
LENOVO PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow
disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply
to you.
This information could include technical inaccuracies or typographical errors. Changes are periodically
made to the information herein; these changes will be incorporated in new editions of the publication.
Lenovo may make improvements and/or changes in the product(s) and/or the program(s) described in this
publication at any time without notice.
The products described in this document are not intended for use in implantation or other life support
applications where malfunction may result in injury or death to persons. The information contained in this
document does not affect or change Lenovo product specifications or warranties. Nothing in this document
shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo
or third parties. All information contained in this document was obtained in specific environments and is
presented as an illustration. The result obtained in other operating environments may vary.
Lenovo may use or distribute any of the information you supply in any way it believes appropriate without
incurring any obligation to you.
Any references in this publication to non-Lenovo Web sites are provided for convenience only and do not in
any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of
the materials for this Lenovo product, and use of those Web sites is at your own risk.
Any performance data contained herein was determined in a controlled environment. Therefore, the result
obtained in other operating environments may vary significantly. Some measurements may have been
made on development-level systems and there is no guarantee that these measurements will be the same
on generally available systems. Furthermore, some measurements may have been estimated through
extrapolation. Actual results may vary. Users of this document should verify the applicable data for their
specific environment.

115

Television output notice
The following notice applies to models that have the factory-installed television-output feature.
This product incorporates copyright protection technology that is protected by method claims of certain U.S.
patents and other intellectual property rights owned by Macrovision Corporation and other rights owners.
Use of this copyright protection technology must be authorized by Macrovision Corporation, and is intended
for home and other limited viewing uses only unless otherwise authorized by Macrovision Corporation.
Reverse engineering or disassembly is prohibited.

European conformance CE mark

Trademarks
The following terms are trademarks of Lenovo in the United States, other countries, or both:
Lenovo
The Lenovo logo
Rescue and Recovery
ThinkVantage
Microsoft and Windows are trademarks of the Microsoft group of companies.
Intel is a trademark of Intel Corporation in the United States, other countries, or both.
Linux is a trademark of Linus Torvalds in the United States, other countries, or both.
Other company, product, or service names may be trademarks or service marks of others.

116

ThinkCentre Hardware Maintenance Manual

Index
A
Administrator, password

I
54

Identifying FRUs 66
information
resources 31
installing, replacing
memory module 98
integrated camera, replacing 101
internal speakers, replacing 100
inverter, replacing 97

B
basic troubleshooting 35
battery, replacing 96
boot-block recovery 112

C
card reader, replacing 94
changing
password 54
startup device sequence 55
components, internal 66
computer cover
removing 79
computer cover, reinstalling 109
connectors
rear 64
connectors, controls, indicators
front 63
considerations, passwords 54
CRU
completing the installation 109
CRUs (Customer Replacable Units), returning defective

LCD panel, replacing 104
Lenovo Solution Center 51
Lenovo Welcome 30
locating components 66
looking up part numbers 63, 69

memory module 98
installing, replacing 98
microprocessor fan, replacing 88
monitor stand
l, removing 75
monitor stand, reinstalling 75

D
deleting a password 54
diagnostics, troubleshooting

notice, television output
notices 115

116

environment, operating 29
exiting, Setup Utility 56

opening
system board shield window
optical drive, replacing 82
Optional-service CRUs 66

F
flashing the BIOS 111
frame stand
reinstalling
76
removing 76
front
connectors, controls, indicators
FRU locations 66
FRU part numbers 63, 69

H
hard disk drive, replacing 79
heat sink assembly, replacing 89

part numbers 63, 69
parts replacement, completing 109
password
Administrator 54
considerations 54
Power-On Password 54
setting, changing, deleting 54
passwords, using 53
physical specifications 29
power supply, replacing 87
Power-On, Password 54

117

rear connectors 64
rear I/O assembly, replacing 84
recovering
a POST/BIOS update failure 112
recovery
boot-block 112
removing
system board shield 86
VESA mount bracket 83
removing computer cover 79
removing the frame stand 76
removing the system stand hinge cover
replacing
battery 96
card reader 94
hard disk drive 79
heat sink assembly 89
integrated camera 101
internal speakers 100
inverter 97
LCD panel 104
microprocessor fan 88
power supply 87
rear I/O assembly 84
system board 102
WI-FI card 108
resources, information 31

television output notice 116
temporary startup device 55
the BIOS, updating (flashing) 111–112
trademarks 116
troubleshooting, basic 35
troubleshooting, diagnostics 35

U
71

118

112

V
VESA mount bracket, removing 83
viewing and changing settings 53

W
WI-FI card, replacing

S
security
enabling or disabling 55
selecting
startup device 55
temporary startup device 55
Self-service CRUs 66
setting
password 54
settings
changing 53
viewing 53
Setup Utility 53
Setup Utility program, starting 53
Setup Utility, exiting 56
starting the Setup Utility program 53
startup device 55
sequence, changing 55
temporary, selecting 55
system board shield window, Opening
system board shield, removing 86
system board, replacing 102
system stand
l, removing 73
system stand hinge cover
reinstalling
71
removing 71
system stand, reinstalling 73

updating
(flashing) the BIOS 111
updating (flashing) the BIOS
using
passwords 53
Setup Utility 53

ThinkCentre Hardware Maintenance Manual

108

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.4
Linearized                      : No
XMP Toolkit                     : Adobe XMP Core 4.0-c316 44.253921, Sun Oct 01 2006 17:14:39
Create Date                     : 2012:03:29 15:58:16+08:00
Creator Tool                    : Arbortext 5.4
Modify Date                     : 2012:05:09 23:01:45+08:00
Metadata Date                   : 2012:05:09 23:01:45+08:00
Graphics 0020resolution         : 600
JPEG0020quality                 : 80
Compression 0020type            : auto
EPS0020processor                : PStill version 1.74.14
Config 0020 File                : E:\PTC\Arbortext PE\custom\lib\standard.pdfcf
Compression 0020level           : 6
Graphics 0020resolution 0020threshold: 900
Producer                        : PDFlib+PDI 7.0.4 (Win32)
Format                          : application/pdf
Document ID                     : uuid:2d65b7b1-800d-4f6b-8091-c454411dc21a
Instance ID                     : uuid:4a125595-a1b4-46d3-a0ef-7f2b685eab8f
Page Count                      : 126
Language                        : EN
Creator                         : Arbortext 5.4
Graphics Resolution             : 600
JPEG Quality                    : 80
Compression Type                : auto
EPS Processor                   : PStill version 1.74.14
Config File                     : E:\PTC\Arbortext PE\custom\lib\standard.pdfcf
Compression Level               : 6
Graphics Resolution Threshold   : 900

EXIF Metadata provided by EXIF.tools

Lenovo M72Z Hmm Us User Manual All In One (Think Centre) Type 3528

Navigation menu

Versions of this User Manual:

Views

Navigation