Lenovo Personal Computer Types 8288 User Manual

Hardware Replacement Guide  
Types 8288, 8297, 8326  
Types 8329, 8342, 8380  
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Hardware Replacement Guide  
Types 8288, 8297, 8326  
Types 8329, 8342, 8380  
Download from Www.Somanuals.com. All Manuals Search And Download.  
First Edition (November 2005)  
© Copyright Lenovo 2005.  
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).  
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Contents  
© Lenovo 2005. Portions © IBM Corp. 2005.  
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iii  
iv Hardware Replacement Guide  
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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 Replaceable 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 parts provided by Lenovo.  
This guide contains procedures for replacing the following parts:  
v Power supply  
v System board  
v Microprocessor  
v Memory modules  
v Adapter  
v Hard disk drive  
v Optical drive  
v Diskette drive  
v System fan  
v Front audio/USB panel  
v Keyboard  
v Mouse  
v Internal speaker  
Safety information for replacing CRUs  
Do not open your computer or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer. If  
you no longer have this copy of the Quick Reference, you can obtain one online  
Safety information for replacing FRUs  
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  
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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 Publications  
v Troubleshooting information  
v Parts information  
v Downloads and drivers  
v Links to other useful sources of information  
v Support phone list  
Tools required  
To replace some parts in your computer, you will 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.  
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  
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Chapter 1. Locations  
This chapter provides illustrations to help locate the various connectors, controls  
and components of the computer. To remove the computer cover, see “Removing  
Locating components  
The following illustration will help you locate the various components in your  
computer.  
ꢀ1ꢁ  
Microprocessor fan and heat  
sink  
ꢀ4ꢁ  
PCI adapter connectors  
ꢀ2ꢁ  
ꢀ3ꢁ  
Memory modules (2)  
PCI adapter card  
ꢀ5ꢁ  
ꢀ6ꢁ  
System fan  
Power supply  
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1
 
Locating connectors on the front of the computer  
The following illustration shows the location of connectors on the front of the  
computer.  
ꢀ1ꢁ  
ꢀ2ꢁ  
USB connector  
USB connector  
ꢀ3ꢁ  
ꢀ4ꢁ  
Headphone connector  
Microphone connector  
2
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Locating connectors on the rear of the computer  
The following illustration shows the location of connectors on the rear of the  
computer.  
ꢀ1ꢁ  
ꢀ2ꢁ  
ꢀ3ꢁ  
ꢀ4ꢁ  
ꢀ5ꢁ  
ꢀ6ꢁ  
ꢀ7ꢁ  
ꢀ8ꢁ  
Power supply diagnostics LEDs ꢀ9ꢁ  
USB connectors (2)  
Ethernet connector  
USB connectors (2)  
Microphone connector  
Audio line out connector  
Audio line in connector  
PCI adapter connectors (2)  
PCI Express x1 adapter connector  
Voltage selection switch  
Power connector  
ꢀ10ꢁ  
ꢀ11ꢁ  
ꢀ12ꢁ  
ꢀ13ꢁ  
ꢀ14ꢁ  
ꢀ15ꢁ  
ꢀ16ꢁ  
Standard mouse connector  
Standard keyboard connector  
Serial connector  
Parallel connector  
VGA monitor connector  
Chapter 1. Locations  
3
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Identifying parts on the system board  
The system board (sometimes called the planar or motherboard) is the main circuit  
board in your computer. It provides basic computer functions and supports a  
variety of devices.  
The following illustration shows the locations of parts on the system board.  
ꢀ1ꢁ  
ꢀ2ꢁ  
ꢀ3ꢁ  
ꢀ4ꢁ  
ꢀ5ꢁ  
ꢀ6ꢁ  
ꢀ7ꢁ  
ꢀ8ꢁ  
ꢀ9ꢁ  
Microprocessor  
ꢀ11ꢁ Clear CMOS/Recovery jumper  
ꢀ12ꢁ SATA IDE connectors (2)  
ꢀ13ꢁ Front panel USB connector  
ꢀ14ꢁ USB Memory Card Reader  
ꢀ15ꢁ System fan connector  
ꢀ16ꢁ PCI Express x1 adapter connector  
ꢀ176ꢁ PCI adapter connectors  
ꢀ18ꢁ Front audio connector  
Microprocessor fan connector  
Memory connector 1  
Memory connector 2  
Internal speaker connector  
Power connector  
Diskette drive connector  
PATA IDE connector  
Battery  
ꢀ19ꢁ 12V power connector  
ꢀ10ꢁ Front panel connector  
4
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Chapter 2. Replacing hardware  
Attention:  
Do not remove the computer cover or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer or in the  
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  
Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.  
Note: Use only parts provided by Lenovo.  
Removing the computer cover  
Important  
Turn off the computer and wait 3 to 5 minutes to let the computer cool  
before removing the computer cover.  
To remove the computer cover:  
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 all 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 that secure the computer cover.  
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5
 
5. Remove the two screws on the right side cover, slide the cover to the rear, and  
remove.  
6
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Removing and replacing the front bezel  
To remove and replace the front bezel:  
1. Remove the computer cover. See “Removing the computer cover” on page 5.  
2. Remove the front bezel by releasing the three plastic tabs inside the chassis and  
push the bezel outward as shown.  
3. To reinstall the bezel, align the plastic tabs on the bottom of the bezel with the  
corresponding holes in the chassis, then snap it into position at the bottom and  
top of the chassis.  
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7
 
Replacing the power supply  
Attention:  
Do not remove the computer cover or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer or in the  
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  
Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.  
To replace the power supply:  
1. Remove the computer cover. See “Removing the computer cover” on page 5.  
Note: For this procedure, it helps to lay the computer on its side.  
2. Disconnect the power supply cables from the system board and from all drives.  
3. Remove the four screws that secure the power supply at the rear of the chassis.  
4. Lift the power supply out of the chassis.  
5. Install the new power supply into the chassis so that the screw holes in the  
power supply align with those in the chassis.  
6. Install the four screws to secure the power supply.  
Note: Use only the screws provided by Lenovo.  
7. Reconnect the power supply connectors to the system board.  
8. Reconnect a power supply connector to each of the drives.  
8
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Replacing the system board assembly  
Attention:  
Do not remove the computer cover or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer or in the  
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  
Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.  
To replace the system board assembly:  
1. Remove the computer cover. See “Removing the computer cover” on page 5.  
2. Lay the computer on its side.  
3. Disconnect the 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.  
4. Remove the system fan assembly. See “Replacing the system fan assembly” on  
5. Remove the screws securing the system board.  
6. Lift the system board toward the front of the computer to disengage it from  
the mounting tabs and lift it out.  
7. Place the defective system board next to the new system board on a clean, flat  
surface.  
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9
 
8. Remove the heat sink ꢀ1ꢁ from the system board by removing the four screws.  
Then, carefully lift up the heat sink off the mounting brackets. Place the heat  
sink on its side on a clean, flat surface so the thermal material on the bottom  
of the heat sink does not touch the surface and become contaminated.  
9. Release the lever ꢀ3ꢁ holding the microprocessor ꢀ2ꢁ and pivot the  
microprocessor retainer ꢀ1ꢁ until it is open.  
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10. Using the vacuum penꢀ1ꢁ, remove the microprocessor from the system board  
socket by lifting it straight up and out of the socket.  
Important  
Do not touch the gold contacts on the bottom of the microprocessor. If  
you must touch the microprocessor, touch only the sides.  
Notes:  
a. Note the orientation of the notches ꢀ1ꢁ on the microprocessor. This is  
important when reinstalling the microprocessor on the new system board.  
b. Do not drop anything onto the microprocessor socket while it is exposed.  
The socket pins must be kept as clean as possible.  
Chapter 2. Replacing hardware 11  
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11. On the new system board, release and pivot the locking lever, then pivot the  
microprocessor retainer until it is open.  
Note: There will be a black plastic cover on the retainer to protect the  
microprocessor socket. As you close the microprocessor retainer, remove the  
black plastic cover. Place the black plastic cover on the microprocessor retainer  
of the defective system board.  
12. 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.  
13. Using the vacuum pen ꢀ1ꢁ, lower the microprocessor straight down into the  
microprocessor socket, and secure the microprocessor.  
14. Position the heat sink on the heat sink mounting bracket and align the four  
holes of the heat sink with the holes on the system board.  
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15. Install the four screws ꢀ1ꢁ to secure the heat sink.  
16. Install the new system board assembly into the computer chassis, align the  
screw holes, and install the screws.  
Note: Use only the screws provided by Lenovo.  
17. Reconnect all cables that were disconnected from the system board. Make sure  
all cables are routed correctly. See “Identifying parts on the system board” on  
page 4 for cable locations.  
Chapter 2. Replacing hardware 13  
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Replacing the microprocessor  
Attention:  
Do not remove the computer cover or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer or in the  
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  
Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.  
Important  
Turn off your computer for at least one hour before removing the  
microprocessor to allow the thermal interface between the microprocessor and  
the heat sink time to cool down.  
Important  
Do not touch the gold contacts on the bottom of the microprocessor. Use the  
vacuum pen provided to remove and install the microprocessor. If you must  
touch the microprocessor, touch only the sides.  
Important  
A grease syringe is required to complete the new microprocessor installation.  
Make sure the grease syringe is available before beginning the procedure.  
Trained service personnel should refer to the HMM for parts ordering  
information.  
To replace the microprocessor:  
1. Remove the computer cover. See “Removing the computer cover” on page 5.  
2. Lay the computer on its side.  
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3. Remove the heat sink ꢀ1ꢁ from the system board by removing the four screws.  
Then, carefully lift up the heat sink off the mounting brackets. Place the heat  
sink on its side on a clean, flat surface so the thermal material on the bottom  
of the heat sink does not touch the surface and become contaminated.  
4. Release the lever ꢀ3ꢁ holding the microprocessor ꢀ2ꢁ and pivot the  
microprocessor retainer ꢀ1ꢁ until it is open.  
Chapter 2. Replacing hardware 15  
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5. Using the vacuum penꢀ1ꢁ, remove the microprocessor from the system board  
socket by lifting it straight up and out of the socket.  
Important  
Do not touch the gold contacts on the bottom of the microprocessor. If  
you must touch the microprocessor, touch only the sides.  
Notes:  
a. Note the orientation of the notches ꢀ1ꢁ on the microprocessor. This is  
important when reinstalling the microprocessor on the system board.  
b. Do not drop anything onto the microprocessor socket while it is exposed.  
The socket pins must be kept as clean as possible.  
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6. On the system board, release and pivot the locking lever, then pivot the  
microprocessor retainer until it is open.  
7. Loosen the protective cover ꢀ3ꢁ that protects the gold contacts on the new  
microprocessor ꢀ2ꢁ but do not remove it. Use the vacuum pen ꢀ1ꢁ to pick up  
the microprocessor then completely remove the protective cover.  
8. Position the microprocessor so that the notches on the microprocessor are  
aligned with the tabs in the microprocessor socket.  
9. Using the vacuum pen ꢀ1ꢁ, lower the microprocessor straight down into the  
microprocessor socket.  
Chapter 2. Replacing hardware 17  
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10. 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).  
11. Position the heat sink on the heat sink mounting bracket and align the four  
holes of the heat sink with the holes on the system board.  
12. Install the four screws ꢀ1ꢁ to secure the heat sink.  
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Replacing a memory module  
Attention:  
Do not remove the computer cover or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer or in the  
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  
Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.  
To replace a memory module:  
1. Remove the computer cover. See “Removing the computer cover” on page 5.  
Note: For this procedure, it helps to lay the computer on its side.  
2. Locate the memory module connectors. See “Locating components” on page 1.  
3. Remove the memory module being replaced by opening the retaining clips as  
shown.  
4. Position the new memory module over the memory connector. Make sure the  
notch ꢀ1ꢁ on the memory 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.  
Chapter 2. Replacing hardware 19  
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Replacing an adapter  
Attention:  
Do not remove the computer cover or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer or in the  
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  
Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.  
To replace an adapter:  
1. Remove the computer cover. See “Removing the computer cover” on page 5.  
2. At the rear of the computer, remove the screw securing the adapter latch and  
remove the adapter by pulling it straight out of the adapter connector.  
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3. Install the new adapter into the same adapter connector.  
4. Ensure the adapter is fully seated into the adapter connector.  
5. At the rear of the computer, align the screw hole and install the screw to secure  
the adapter.  
Replacing the hard disk drive  
Attention:  
Do not remove the computer cover or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer or in the  
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  
Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.  
Chapter 2. Replacing hardware 21  
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Important  
When you receive a new hard disk drive, you will also receive a set of  
Product Recovery CD. The set of Product Recovery CD 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 Softwarein the Quick  
Reference.  
To replace the hard disk drive:  
1. Remove the computer cover. See “Removing the computer cover” on page 5.  
Note: For this procedure, it helps to lay the computer on its side.  
2. Remove the diskette drive. See “Replacing the diskette drive” on page 24.  
3. Disconnect the signal and power cables from the hard disk drive.  
4. Remove the two screws at the side of the bay, remove the screw at the bottom,  
and tilt up into the diskette drive bay to avoid the heat sink when removing  
the hard disk drive.  
5. Slide the new hard disk drive into the drive bay so that the screw holes align  
with those in the drive bay.  
6. Install the two screws to secure the hard disk drive.  
7. Connect the power and signal cables to the hard disk drive. See “Identifying  
8. Reinstall the diskette drive.  
9. Connect the power and signal cables to the diskette drive. See “Identifying  
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Replacing an optical drive  
Attention:  
Do not remove the computer cover or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer or in the  
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  
Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.  
To replace an optical drive  
1. Remove the computer cover. See “Removing the computer cover” on page 5.  
Note: For this procedure, it helps to lay the computer its side.  
3. Disconnect the signal and power cables from the rear of the optical drive.  
4. Remove the two screws at the side of the optical drive bay and remove the  
optical drive out the front of the computer.  
5. Slide the new optical drive into the bay from the front and install the two  
screws.  
6. Connect the signal and power cables to the drive.  
Chapter 2. Replacing hardware 23  
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Replacing the diskette drive  
Attention:  
Do not remove the computer cover or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer or in the  
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  
Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.  
To replace the diskette drive:  
1. Remove the computer cover. See “Removing the computer cover” on page 5.  
3. Disconnect the signal and power cables from the rear of the diskette drive.  
4. Remove the two screws at the side of the drive bay and slide the diskette drive  
out the front of the computer.  
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5. Slide the new diskette drive into the drive bay so that the screw holes align  
with those in the drive bay.  
6. Install the two screws to secure the diskette drive.  
Replacing the system fan assembly  
Attention:  
Do not remove the computer cover or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer or in the  
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  
Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.  
To replace the system fan assembly:  
1. Remove the computer cover. See “Removing the computer cover” on page 5.  
2. Locate the system fan assembly. See “Locating components” on page 1.  
3. Disconnect the system fan assembly cable from the system board. See  
Chapter 2. Replacing hardware 25  
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4. Remove the four screws that secure the system fan assembly at the rear of  
chassis.  
5. Lift the system fan assembly out of chassis.  
6. Install the new system fan assembly into the chassis so that the screw holes in  
the system fan assembly align with those in the chassis.  
7. Install the four screws to secure the system fan assembly.  
Note: Use only the screws provided by Lenovo.  
Replacing the front audio/USB panel  
Attention:  
Do not remove the computer cover or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer or in the  
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  
Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.  
To replace the front audio/USB panel:  
1. Remove the computer cover. See “Removing the computer cover” on page 5.  
3. Disconnect the front panel connector, front audio connector, and front panel  
USB connector cables from the system board. See “Identifying parts on the  
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4. Remove the screw that secures the front audio/USB panel card and lift the  
front audio/USB panel card out of the lower slot.  
5. Insert bottom of the new front audio/USB panel in the lower slot.  
6. Align the front audio/USB panel with the screw hole.  
7. Install the screw to secure the front audio/USB panel.  
Replacing the keyboard  
Attention:  
Do not remove the computer cover or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer or in the  
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  
Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.  
To replace the 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  
Chapter 2. Replacing hardware 27  
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Note: Your keyboard might be connected to the standard keyboard connector  
ꢀ1ꢁ at the rear of the computer or to a USB connector ꢀ2ꢁ at either the front or  
rear of the computer.  
4. Disconnect the failing keyboard cable from the computer and connect the new  
keyboard cable to the same connector.  
Replacing the mouse  
Attention:  
Do not remove the computer cover or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer or in the  
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  
Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.  
To replace the 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.  
2. Unplug all power cords from electrical outlets.  
3. Locate the connector for the mouse. See “Locating connectors on the front of  
Note: Your mouse might be connected to the standard mouse connector ꢀ1ꢁ at  
the rear of the computer or to a USB connector ꢀ2ꢁ at either the front or rear of  
the computer.  
4. Disconnect the failing mouse cable from the computer.  
5. Connect the new mouse cable to the connector.  
Replacing the internal speaker  
Attention:  
Do not remove the computer cover or attempt any repair before reading the “Important  
safety information” in the Quick Reference that was included with your computer or in the  
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick  
Reference or HMM, go to the Support Web site at http://www.lenovo.com/think/support.  
To replace the internal speaker:  
1. Remove the computer cover. See “Removing the computer cover” on page 5.  
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2. Locate the internal speaker ꢀ1ꢁ.  
3. Locate the internal speaker connector, see “Identifying parts on the system  
4. Disconnect the speaker cable from the system board.  
5. Remove the speaker by sliding it upward and out of the retaining bracket.  
6. Install the new speaker.  
Completing the installation  
After replacing the parts, you need to close the computer 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 Starting the Setup Utilityin your Quick Reference or in  
the Hardware Maintenance Manual.  
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 the various components.  
2. Make sure that the cables are routed correctly before replacing the computer  
cover.  
Chapter 2. Replacing hardware 29  
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3. Position the computer cover on the chassis so that the rail guides on the bottom  
of the computer cover engage the rails. Then, push the computer cover closed  
and install the screws.  
4. If a cover lock is installed, lock the cover.  
5. Reconnect the external cables and power cords into the computer. See  
6. If you are replacing the system board or microprocessor, you must update  
7. To update your configuration, see Starting the Setup Utilityin the Quick  
Reference that was included with your computer or in the Hardware Maintenance  
Manual.  
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.  
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Updating (flashing) BIOS from a diskette or CD-ROM  
Important  
Start the Setup Utility program to view your system information. See  
“Starting the Setup Utility” in your Quick Reference or in 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.  
To update (flash) the BIOS from a diskette or CD-ROM, do the following:  
1. Insert a system program update (flash) diskette or CD-ROM into the diskette  
drive or optical drive. System program updates are available at  
Note: To insert a CD-ROM into the optical drive, the computer must be 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.  
Chapter 2. Replacing hardware 31  
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32 Hardware Replacement Guide  
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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 2005. Portions © IBM Corp. 2005.  
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33  
 
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 trademark 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.  
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Part Number: 41D4474  
Printed in USA  
(1P) P/N: 41D4474  
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