Lenovo THINKCENTRE 8804 User Manual

Hardware Replacement Guide  
Types 8010, 8792, 8796, 8800  
Types 8804, 8808, 8813  
Hardware Replacement Guide  
Types 8010, 8792, 8796, 8800  
Types 8804, 8808, 8813  
First Edition (June 2006)  
© Copyright Lenovo 2006.  
Portions © Copyright International Business Machines Corporation 2005.  
All rights reserved.  
U.S. GOVERNMENT USERS – RESTRICTED RIGHTS: Our products and/or services are provided with  
RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to the GSA ADP Schedule  
contract with Lenovo Group Limited, if any, or the standard terms of this commercial license, or if the agency is  
unable to accept this Program under these terms, then we provide this Program under the provisions set forth in  
Commercial Computer Software–Restricted Rights at FAR 52.227-19, when applicable, or under Rights in  
Data-General, FAR 52.227.14 (Alternate III).  
Contents  
© Lenovo 2006. Portions © IBM Corp. 2005.  
iii  
iv Hardware Replacement Guide  
Overview  
This guide is intended to be used by customers who are replacing Customer  
Replaceable Units (CRUs) as well as trained service personnel who are replacing  
Field Replacement Units (FRUs). In this guide, CRUs and FRUs will often be  
referred to as parts.  
Note: Trained service personnel should refer to the Hardware Maintenance Manual  
(HMM) for parts ordering information.  
This guide does not include procedures for all parts. It is expected that cables,  
switches, and certain mechanical parts can be replaced by trained service personnel  
without the need for step-by-step procedures.  
Note: Use only the parts provided by Lenovo.  
This guide contains instructions for replacing the following parts:  
v Power supply  
v System board  
v Microprocessor  
v Hard disk drive  
v Optical drive  
v Diskette drive  
v Memory modules  
v PCI adapter  
v Fan assembly  
v Internal speaker  
v Keyboard  
v Mouse  
Safety information for customers  
Do not open your computer or attempt any repair before reading the “Important  
safety information” in the Safety and Warranty Guide that was included with your  
computer. If you no longer have this copy of the Safety and Warranty Guide, you  
can obtain one online from the Support Web site at http://www.lenovo.com/  
support.  
Safety information for service personnel  
Do not attempt any repair before reading the “Important safety information” in the  
Hardware Maintenance Manual (HMM) for the computer. You can find the HMM on  
© Lenovo 2006. Portions © IBM Corp. 2005.  
v
 
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:  
v CRU removal and installation information  
v CRU removal and installation videos  
v Publications  
v Troubleshooting information  
v Parts information  
v Downloads and drivers  
v Links to other useful sources of information  
v Support phone list  
support  
Tools required  
To replace some parts in your computer, you might need a flat-blade or Phillips  
screwdriver. Additional tools might be needed for certain parts.  
Handling static-sensitive devices  
Static electricity, although harmless to you, can seriously damage computer  
components and parts.  
When you are replacing a part, do not open the static-protective package  
containing the new part until the defective part has been removed from the  
computer and you are ready to install the new part.  
When you handle parts and other computer components, take these precautions to  
avoid static-electricity damage:  
v Limit your movement. Movement can cause static electricity to build up around  
you.  
v Always handle parts and other computer components carefully. Handle  
adapters, memory modules, system boards, and microprocessors by the edges.  
Never touch any exposed circuitry.  
v Prevent others from touching the parts and other computer components.  
v Before you replace a new part, touch the static-protective package containing the  
part to a metal expansion-slot cover or other unpainted metal surface on the  
computer for at least two seconds. This reduces static electricity in the package  
and your body.  
v When possible, remove the new part from the static-protective packaging, and  
install it directly in the computer without setting the part down. When this is  
not possible, place the static-protective package that the part came in on a  
smooth, level surface and place the part on it.  
v Do not place the part on the computer cover or other metal surface.  
vi Hardware Replacement Guide  
 
Chapter 1. Locations  
This chapter provides illustrations to help locate the various connectors, controls,  
and components of the computer. To open the computer cover, see “Opening the  
Locating components  
The following illustration will help you locate the various components in your  
computer.  
ꢀ1ꢁ  
ꢀ2ꢁ  
ꢀ3ꢁ  
Diskette drive lock  
Microprocessor and heat sink  
Memory connectors (2)  
ꢀ7ꢁ  
ꢀ8ꢁ  
ꢀ9ꢁ  
Internal speaker  
Hard disk drive  
Optical drive (such as a CD or  
DVD drive)  
ꢀ4ꢁ  
ꢀ5ꢁ  
ꢀ6ꢁ  
Battery  
PCI riser assembly  
Power supply assembly  
ꢀ10ꢁ Optical drive lock  
ꢀ11ꢁ Diskette drive  
© Lenovo 2006. Portions © IBM Corp. 2005.  
1
 
Locating controls and connectors on the front of your computer  
The following illustration shows locations of the controls and connectors on the  
front of your computer.  
Note: Not all computer models will have the following controls and connections.  
ꢀ1ꢁ  
ꢀ2ꢁ  
ꢀ3ꢁ  
ꢀ4ꢁ  
Optical drive (some models)  
Hard disk drive activity indicator ꢀ6ꢁ  
Power-on indicator  
Power button  
ꢀ5ꢁ  
USB connectors (2)  
Microphone connector  
Headphone connector  
Diskette drive (some models)  
ꢀ7ꢁ  
ꢀ8ꢁ  
2
Hardware Replacement Guide  
 
Locating connectors on the rear of your computer  
The following illustration shows locations of connectors on the rear of your  
computer.  
ꢀ1ꢁ  
ꢀ2ꢁ  
ꢀ3ꢁ  
ꢀ4ꢁ  
ꢀ5ꢁ  
ꢀ6ꢁ  
ꢀ7ꢁ  
Power cord connector  
Cable lock latch  
PCI Express x1 adapter connector ꢀ10ꢁ  
PCI adapter connector  
USB connectors (4)  
Ethernet connector  
USB connectors (2)  
ꢀ8ꢁ  
ꢀ9ꢁ  
Serial connector  
VGA monitor connector  
Parallel connector  
Audio line in connector  
Audio line out connector  
Power supply diagnostic LEDs  
ꢀ11ꢁ  
ꢀ12ꢁ  
ꢀ13ꢁ  
Chapter 1. Locations  
3
 
Identifying parts on the system board  
The following illustration shows the locations of parts on the system board.  
ꢀ1ꢁ  
ꢀ2ꢁ  
ꢀ3ꢁ  
ꢀ4ꢁ  
ꢀ5ꢁ  
ꢀ6ꢁ  
ꢀ7ꢁ  
Memory connector 1  
Memory connector 2  
SATA IDE connectors (3)  
Clear CMOS/Recovery jumper  
PCI riser connector  
ꢀ9ꢁ  
Internal speaker connector  
Diskette drive connector  
Front panel connector  
Power supply connector  
12v power connector  
Microprocessor  
ꢀ10ꢁ  
ꢀ11ꢁ  
ꢀ12ꢁ  
ꢀ13ꢁ  
ꢀ14ꢁ  
ꢀ15ꢁ  
Battery  
Cover presence switch (some  
models)  
Fan connector 2  
ꢀ8ꢁ  
Temperature sensor connector  
ꢀ16ꢁ  
Fan connector 1  
4
Hardware Replacement Guide  
 
Chapter 2. Replacing hardware  
Attention  
Do not open your computer or attempt any repair before reading the “Important safety  
information” in the Safety and Warranty Guide that was included with your computer or in  
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety  
and Warranty Guide or the HMM, go to the Support Web site at http://www.lenovo.com/  
support.  
Note: Use only parts provided by Lenovo.  
Opening the cover  
Important  
Turn off the computer and wait 3 to 5 minutes to let the computer cool  
before opening the computer cover.  
To open the computer cover, do the following:  
1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down your  
operating system, turn off all attached devices and the computer.  
2. Unplug all power cords from electrical outlets.  
3. Disconnect the cables attached to the computer. This includes power cords,  
input/output (I/O) cables, and any other cables that are connected to the  
4. Remove any locking devices, such as a cable lock that secure the computer  
cover.  
5. Press the buttons on the sides of the computer and pivot the cover upward to  
open the computer as shown.  
© Lenovo 2006. Portions © IBM Corp. 2005.  
5
 
Replacing the power supply assembly  
Attention  
Do not open your computer or attempt any repair before reading the “Important safety  
information” in the Safety and Warranty Guide that was included with your computer or in  
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety  
and Warranty Guide or the HMM, go to the Support Web site at http://www.lenovo.com/  
support.  
To replace the power supply assembly, do the following:  
1. Remove the four screws at the rear of the chassis that secure the power  
supply.  
2. Open the computer cover. See the “Opening the cover” on page 5.  
3. Pivot the drive bay assembly upward to gain access to the system board.  
4. Locate the power supply assembly. See “Locating components” on page 1.  
6
Hardware Replacement Guide  
 
5. Disconnect the power supply cables ꢀ1ꢁand ꢀ2ꢁ from the system board  
connectors and from all drives.  
6. Remove the power supply cables from the cable clips and ties.  
7. Slide the power supply assembly forward and remove it from the computer.  
8. Install the new power supply assembly into the chassis so that the screw holes  
in the power supply assembly align with those in the chassis.  
Note: Use only the screws provided by Lenovo.  
9. Install and tighten the four screws at the rear of the chassis to secure the  
power supply assembly.  
10. Reconnect all the power supply cables to the drives and the system board.  
Chapter 2. Replacing hardware  
7
Replacing the system board  
Attention  
Do not open your computer or attempt any repair before reading the “Important safety  
information” in the Safety and Warranty Guide that was included with your computer or in  
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety  
and Warranty Guide or the HMM, go to the Support Web site at http://www.lenovo.com/  
support.  
To replace the system board, do the following:  
1. Turn off the computer and allow the computer to cool for one hour.  
2. Open the computer cover. See “Opening the cover” on page 5.  
3. Pivot the drive bay assembly upward to gain access to the system board.  
8
Hardware Replacement Guide  
 
4. While holding the rear of the computer chassis down, pull upward on the  
handle provided to remove the PCI riser assembly and any adapters that are  
currently installed.  
5. Carefully take note of the location of all cable connections on the system  
board. It will be necessary to reconnect them properly when installing a new  
system board.  
6. Disconnect all cables connected to the system board. See “Identifying parts on  
Important  
Note the cable routing. It is important to route the cables the same way  
after you install the new system board.  
Chapter 2. Replacing hardware  
9
7. Pull upward on the handle ꢀ1ꢁto release the system board from the front  
latch, slide the system board toward the drive bay assembly, and then  
carefully lift the system board out of the chassis.  
Note: You might have to tilt the front end of the system board between the  
diskette drive and the fan assembly to remove it completely from the chassis.  
8. Place the failing system board next to the new system board on a clean, flat  
surface.  
9. Remove all memory modules from the failing system board and install them  
in the same connectors on the new system board. See “Replacing a memory  
module” on page 25. Return here after installing the memory modules on the  
new system board.  
10 Hardware Replacement Guide  
10. Remove the heat sink from the failing system board by pivoting the lever  
ꢀ1ꢁsecuring the heat sink until it is fully in the up position. Carefully lift the  
heat sink off of the failing system board.  
Note: Place the heat sink on its side on a clean, flat surface so the thermal  
grease on the bottom of the heat sink does not touch the surface and become  
contaminated.  
11. To remove the microprocessor from the failing system board, release the lever  
ꢀ1ꢁ securing the microprocessor ꢀ3ꢁ then pivot the microprocessor retainer ꢀ2ꢁ  
until it is fully open.  
Chapter 2. Replacing hardware 11  
12. Lift the microprocessor straight up and out of the socket.  
Important  
Do not touch the gold contacts on the bottom of the microprocessor.  
When handling the microprocessor, touch only the sides.  
a. Note the orientation of the notches ꢀ1ꢁ on the microprocessor. This is  
important when installing the microprocessor on the new system board.  
b. Do not drop anything on the socket while it is open. Keep all contacts as  
clean as possible.  
13. On the new system board, release the lever securing the microprocessor  
retainer and then pivot the retainer until it is fully open.  
14. Position the microprocessor so that the notches on the microprocessor are  
aligned with the tabs in the microprocessor socket on the new system board.  
Important  
To avoid damaging the microprocessor, do not tilt the microprocessor  
when installing it into the microprocessor socket.  
12 Hardware Replacement Guide  
15. Lower the microprocessor straight down into the microprocessor socket.  
16. Lower the microprocessor retainer ꢀ2ꢁ and then lower the lever ꢀ1ꢁ to secure  
the retainer. Make sure the lever is securely locked into position.  
Note: There will be a black plastic cover on the microprocessor retainer to  
protect the socket on the new system board. When you lock the  
microprocessor in position, remove the black plastic cover. Place the black  
plastic cover on the microprocessor retainer of the failing system board.  
17. Place the heat sink into position and lower the lever to secure the heat sink.  
18. To install the new system board into the chassis, tilt the front end of the  
system board between the diskette drive and the fan assembly, and position it  
so that the slots in the new system board are aligned with the pins on the  
chassis.  
Chapter 2. Replacing hardware 13  
19. Slide the system board toward the rear of the computer until the front latch  
snaps into position.  
20. Reconnect the cables that were disconnected from the system board. Make  
sure all cables are routed correctly. See “Identifying parts on the system  
21. Reinstall the PCI riser assembly and adapters.  
Replacing the microprocessor  
Attention  
Do not open your computer or attempt any repair before reading the “Important safety  
information” in the Safety and Warranty Guide that was included with your computer or in  
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety  
and Warranty Guide or the HMM, go to the Support Web site at http://www.lenovo.com/  
support.  
This section provides instructions on how to replace the microprocessor.  
Important  
Do not touch the gold contacts on the bottom of the microprocessor. When  
handling the microprocessor, touch only the sides.  
Important  
Turn off your computer for at least one hour before removing the  
microprocessor to allow the thermal grease between the microprocessor and  
the heat sink time to cool down.  
14 Hardware Replacement Guide  
 
To replace the microprocessor, do the following:  
1. Open the computer cover. See “Opening the cover” on page 5.  
2. Pivot the drive bay assembly upward to gain access to the microprocessor.  
3. Remove the heat sink from the system board by pivoting the lever ꢀ1ꢁ  
securing the heat sink until it is fully in the up position. Carefully lift the heat  
sink off of the system board.  
Note: Place the heat sink on its side on a clean, flat surface so the thermal  
grease on the bottom of the heat sink does not touch the surface and become  
contaminated.  
Chapter 2. Replacing hardware 15  
4. Release the lever ꢀ1ꢁ for the microprocessor retainer ꢀ2ꢁ securing the  
microprocessorꢀ3ꢁ and pivot the retainer upward until it is fully open.  
5. Remove the microprocessor from the system board socket by lifting the  
microprocessor straight up and out of the socket.  
Important  
Do not touch the gold contacts on the bottom of the microprocessor.  
When handling the microprocessor, touch only the sides.  
16 Hardware Replacement Guide  
a. Note the orientation of the notches ꢀ1ꢁ on the microprocessor. This is  
important when installing the new microprocessor on the system board.  
b. Do not drop anything on the socket while it is open. Keep all contacts as  
clean as possible.  
6. Make sure that the lever on the microprocessor retainer is fully open.  
7. Remove the black cover ꢀ2ꢁthat protects the gold contacts on the new  
microprocessor ꢀ1ꢁ.  
8. Position the microprocessor so that the notches on the microprocessor are  
aligned with the tabs in the microprocessor socket.  
Important  
To avoid damaging the microprocessor contacts, do not tilt the  
microprocessor when installing it into the socket.  
Chapter 2. Replacing hardware 17  
9. Lower the microprocessor straight down into the microprocessor socket.  
10. Lower the microprocessor retainer ꢀ2ꢁ and then lower the lever ꢀ1ꢁto secure  
the retainer. Make sure the lever is securely locked into position.  
18 Hardware Replacement Guide  
11. Use the thermal grease syringe to place five drops of grease on the top of the  
microprocessor. Each drop of grease should be 0.03ml (3 tick marks on the  
grease syringe).  
12. Place the heat sink into position and lower the lever ꢀ1ꢁto secure the heat  
sink.  
Replacing a hard disk drive  
Attention  
Do not open your computer or attempt any repair before reading the “Important safety  
information” in the Safety and Warranty Guide that was included with your computer or in  
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety  
and Warranty Guide or the HMM, go to the Support Web site at http://www.lenovo.com/  
support.  
Chapter 2. Replacing hardware 19  
 
This section provides instructions on how to replace the hard disk drive.  
Important  
When you receive a new hard disk drive, you also receive a set of Product  
Recovery CDs. The set of Product Recovery CDs will enable you to restore the  
contents of the hard disk to the same state as when your computer was  
originally shipped from the factory. For more information on recovering  
factory-installed software, refer to “Recovering software” in your User Guide.  
To replace the hard disk drive, do the following:  
1. Open the computer cover. See “Opening the cover” on page 5.  
2. Pivot the drive bay assembly upward to gain access to the system board.  
3. If an optical drive is installed, disconnect the signal cable from the drive to  
access the hard disk drive cables.  
4. Disconnect the signal and power cables from the rear of the hard disk drive.  
20 Hardware Replacement Guide  
5. Pivot the hard disk drive and bracket to the rear, then pull the drive and  
bracket out of the drive bay by pulling on the blue handle.  
6. Remove the failing hard disk drive from the bracket by flexing the bracket.  
Chapter 2. Replacing hardware 21  
7. Install the new drive into the blue bracket, flex the bracket, and align the pins  
ꢀ1ꢁ through ꢀ4ꢁon the bracket with the holes in the hard disk drive. Do not  
touch the circuit board ꢀ5ꢁ on the bottom of the hard disk drive.  
8. Install the hard disk drive and bracket into the drive bay.  
9. Pivot the drive and bracket towards the front of the computer and snap it into  
position.  
10. Connect the signal and power cables to the rear of the new hard disk drive.  
Replacing an optical drive  
Attention  
Do not open your computer or attempt any repair before reading the “Important safety  
information” in the Safety and Warranty Guide that was included with your computer or in  
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety  
and Warranty Guide or the HMM, go to the Support Web site at http://www.lenovo.com/  
support.  
This section provides instructions on how to replace an optical drive.  
1. Open the computer cover. See “Opening the cover” on page 5.  
22 Hardware Replacement Guide  
 
2. Pivot the drive bay assembly upward to gain access to the hard disk drive.  
3. Disconnect the signal and power cables from the rear of the optical drive.  
4. Slide the optical drive lock ꢀ1ꢁ to the unlocked position.  
5. Open the door at the front of the optical drive and slide it out the front of the  
computer.  
6. Install the new optical drive into the bay.  
7. Slide the optical drive lock to the locked position.  
8. Connect the signal and power cables to the rear of the optical drive.  
Chapter 2. Replacing hardware 23  
Replacing the diskette drive  
Attention  
Do not open your computer or attempt any repair before reading the “Important safety  
information” in the Safety and Warranty Guide that was included with your computer or in  
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety  
and Warranty Guide or the HMM, go to the Support Web site at http://www.lenovo.com/  
support.  
This section provides instructions on how to replace the diskette drive.  
1. Open the computer cover. See “Opening the cover” on page 5.  
2. Pivot the drive bay assembly upward to gain access to the diskette drive.  
3. Disconnect the signal and power cables from the rear of the diskette drive.  
24 Hardware Replacement Guide  
 
4. Slide the diskette drive lock ꢀ1ꢁto the unlocked position.  
5. Slide the diskette drive towards the rear of the computer and remove the drive.  
6. Connect the flat cable to the new diskette drive.  
7. Install the new drive from the rear of the drive bay assembly and lock the  
drive into position.  
Replacing a memory module  
Attention  
Do not open your computer or attempt any repair before reading the “Important safety  
information” in the Safety and Warranty Guide that was included with your computer or in  
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety  
and Warranty Guide or the HMM, go to the Support Web site at http://www.lenovo.com/  
support.  
This section provides instructions on how to replace a memory module.  
Note: Your computer has support for two memory modules.  
1. Open the computer cover. See “Opening the cover” on page 5.  
Chapter 2. Replacing hardware 25  
 
2. While holding the rear of the computer chassis down, pull upward on the  
handle provided to remove the PCI riser assembly and any adapters that are  
currently installed.  
3. Pivot the drive bay assembly upward to gain access to the system board.  
4. Locate the memory connectors. See “Identifying parts on the system board” on  
26 Hardware Replacement Guide  
5. Remove the memory module being replaced by opening the retaining clips as  
shown.  
6. Position the replacement memory module over the memory connector. Make  
sure the notch ꢀ1ꢁon the memory module aligns correctly with the connector  
key ꢀ2ꢁ on the system board. Push the memory module straight down into the  
connector until the retaining clips close.  
7. Reinstall the PCI riser assembly and adapters.  
Replacing a PCI adapter  
Attention  
Do not open your computer or attempt any repair before reading the “Important safety  
information” in the Safety and Warranty Guide that was included with your computer or in  
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety  
and Warranty Guide or the HMM, go to the Support Web site at http://www.lenovo.com/  
support.  
This section provides instructions on how to replace a PCI adapter.  
1. Open the computer cover. See “Opening the cover” on page 5.  
Chapter 2. Replacing hardware 27  
 
2. While holding the left rear of the computer chassis down, pull upward on the  
handle provided to remove the PCI riser assembly including any adapters that  
are already installed.  
3. Open the adapter latch and remove the failing adapter.  
4. Remove the new adapter from its static-protective package.  
5. Install the new adapter into the expansion connector into the PCI riser.  
6. Ensure the adapter is fully seated into the adapter connector.  
28 Hardware Replacement Guide  
7. Close the adapter latch to retain the adapter.  
8. Reinstall the PCI riser assembly into the system board.  
Replacing the fan assembly  
Attention  
Do not open your computer or attempt any repair before reading the “Important safety  
information” in the Safety and Warranty Guide that was included with your computer or in  
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety  
and Warranty Guide or the HMM, go to the Support Web site at http://www.lenovo.com/  
support.  
This section provides instructions on how to replace the fan assembly.  
1. Open the computer cover. See “Opening the cover” on page 5.  
2. Pivot the drive bay assembly upward to gain access to the fan assemblyꢀ1ꢁ.  
Chapter 2. Replacing hardware 29  
 
3. Disconnect the fan assembly cables from the system board. See “Identifying  
Note: Make sure you note the location of the fan cables when you disconnect  
the cables from the system board.  
4. Remove the front bezel by releasing the tab as shown and pivoting the bezel  
outward from the bottom.  
5. Remove the plastic fan insert behind the bezel by releasing the tabs as shown.  
30 Hardware Replacement Guide  
6. Remove the fan assembly by releasing the tabs as shown.  
7. Install the new fan assembly and connect the fan cables to the system board.  
8. Reinstall the plastic fan insert.  
9. Reinstall the front bezel.  
Replacing the internal speaker  
Attention  
Do not open your computer or attempt any repair before reading the “Important safety  
information” in the Safety and Warranty Guide that was included with your computer or in  
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety  
and Warranty Guide or the HMM, go to the Support Web site at http://www.lenovo.com/  
support.  
This section provides instructions on how to replace the internal speaker.  
1. Open the computer cover. See “Opening the cover” on page 5.  
Chapter 2. Replacing hardware 31  
 
2. Pivot the drive bay assembly upward to gain access to the system board.  
3. Locate the internal speaker connector on the system board. See “Locating  
4. Disconnect the internal speaker cable from the system board. See “Identifying  
Note: Make sure you note the location of the speaker cable when you  
disconnect it from the system board.  
5. Slide the internal speaker ꢀ1ꢁupward until the speaker is released from the  
metal tabs that secure it at the bottom. Then pivot the bottom of the internal  
speaker outward and remove the speaker from the chassis.  
32 Hardware Replacement Guide  
6. Position the bottom of the new internal speaker into the metal tabs and then  
pivot the top of the internal speaker inward until the speaker snaps into  
position.  
7. Connect the speaker cable to the system board. See “Identifying parts on the  
Replacing the keyboard  
Attention  
Do not open your computer or attempt any repair before reading the “Important safety  
information” in the Safety and Warranty Guide that was included with your computer or in  
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety  
and Warranty Guide or the HMM, go to the Support Web site at http://www.lenovo.com/  
support.  
This section provides instructions on how to replace a keyboard.  
1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down your  
operating system, and turn off all attached devices and the computer.  
2. Unplug all power cords from electrical outlets.  
3. Locate the connector for the keyboard. See “Locating connectors on the rear of  
4. Disconnect the failing keyboard cable from the computer.  
5. Connect the new keyboard cable to one of the USB connectors.  
Replacing the mouse  
Attention  
Do not open your computer or attempt any repair before reading the “Important safety  
information” in the Safety and Warranty Guide that was included with your computer or in  
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety  
and Warranty Guide or the HMM, go to the Support Web site at http://www.lenovo.com/  
support.  
This section provides instructions on how to replace a mouse.  
1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down your  
operating system, and turn off all attached devices and the computer.  
Chapter 2. Replacing hardware 33  
 
2. Unplug all power cords from electrical outlets.  
3. Locate the connector for the mouse. See “Locating controls and connectors on  
4. Disconnect the failing mouse cable from the computer.  
5. Connect the new mouse cable to one of the USB connectors.  
Completing the parts replacement  
After replacing the parts, you need to close the cover and reconnect cables,  
including telephone lines and power cords. Also, depending on the part that was  
replaced, you might need to confirm the updated information in the Setup Utility  
program. See Using the Setup Utility programin your User Guide.  
To complete the part installation:  
1. Ensure that all components have been reassembled correctly and that no tools  
or loose screws are left inside your computer. See “Locating components” on  
page 1 for the location of various components.  
34 Hardware Replacement Guide  
 
2. Make sure that the cables are routed correctly before lowering the drive bay  
assembly.  
Important  
Correctly route all power supply cables to avoid interference with the  
drive bay assembly. Keep cables clear of the hinges and sides of the  
computer chassis.  
3. Lower the drive bay assembly and position the drive locks to the locked  
position. Otherwise, you cannot close the computer cover.  
4. Close the computer cover.  
5. If a cover lock is installed, lock the cover.  
6. Reconnect the external cables and power cords to the computer. See “Locating  
7. If you are replacing the system board or microprocessor, you must update  
8. To update your configuration, see Using the Setup Utility programin the User  
Guide.  
Note: In most areas of the world, Lenovo requires the return of the defective CRU.  
Information about this will come with the CRU or will come a few days after the  
CRU arrives.  
Updating (flashing) BIOS from a diskette or CD-ROM  
Important  
Start the Setup Utility program to view your system information. See “Using  
the Setup Utility program” in your User Guide or the Hardware Maintenance  
Manual. If the serial number and the machine type/model listed on the Main  
menu do not match what is printed on the label of your computer, you must  
update (flash) the BIOS to change the serial number and the machine  
type/model.  
Chapter 2. Replacing hardware 35  
 
To update (flash) the BIOS from a diskette or CD-ROM, do the following:  
1. Insert a system program update (flash) diskette or CD into the diskette drive or  
optical drive. System program updates are available at  
Note: If you are inserting a CD-ROM into the optical drive, make sure that the  
computer is turned on.  
2. Turn on the computer. If it is on already, you must turn it off and back on  
again. The update begins.  
3. When you are prompted to select a language, press the number on your  
keyboard that corresponds to the language and then press Enter.  
4. When prompted to change the serial number, press Y.  
5. Type in the seven character serial number of your computer and then press  
Enter.  
6. When prompted to change the machine type/model, press Y.  
7. Type in the seven character machine type/model of your computer and then  
press Enter.  
8. Follow the instructions on the screen to complete the update.  
36 Hardware Replacement Guide  
Appendix. 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.  
500 Park Offices Drive, Hwy. 54  
Research Triangle Park, NC 27709  
U.S.A.  
Attention: Lenovo Director of Licensing  
LENOVO GROUP LTD. 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  
© Lenovo 2006. Portions © IBM Corp. 2005.  
37  
 
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.  
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.  
Trademarks  
The following terms are trademarks of Lenovo in the United States, other  
countries, or both:  
Lenovo  
ThinkCentre  
IBM is a trademarks of International Business Machines Corporation in the United  
States, other countries, or both.  
Other company, product, or service names may be trademarks or service marks of  
others.  
38 Hardware Replacement Guide  
 
Part Number: 41X6211  
Printed in USA  
(1P) P/N: 41X6211  

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