ThinkCentre
™
Hardw are Replacement Guide
Ty pe s 9212 9213
ThinkCentre
™
Hardw are Replacement Guide
Ty pe s 9212 9213
Second Edition (March 2005)
© Copyright International Business Machines Corporation 2005. All rights reserved.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.
Contents
Overview . . . . . . . . . . . . . .v
Safety information for replacing CRUs . . . . . .v
Safety information for replacing FRUs . . . . . .v
Additional information resources . . . . . . .v
Tools required . . . . . . . . . . . . .vi
Handling static-sensitive devices . . . . . . .vi
Chapter 1. Locations . . . . . . . . .1
Locating components . . . . . . . . . . .1
Locating connectors on the front of the computer . .2
Locating connectors on the rear of the computer . .3
Identifying parts on the system board . . . . . .4
Chapter 2. Replacing hardware . . . . .5
Removing the cover . . . . . . . . . . . .5
Removing and replacing the front bezel . . . . .6
Replacing the power supply . . . . . . . . .6
Replacing the system board assembly . . . . . .10
Replacing the microprocessor . . . . . . . .13
Replacing a memory module . . . . . . . .19
Replacing a PCI adapter . . . . . . . . . .20
Replacing a hard disk drive . . . . . . . . .22
Replacing an optical drive . . . . . . . . .25
Replacing the diskette drive . . . . . . . . .27
Replacing the keyboard . . . . . . . . . .28
Replacing the mouse . . . . . . . . . . .29
Replacing the internal speaker . . . . . . . .30
Completing the parts replacement . . . . . . .31
Updating (flashing) BIOS from a diskette . . . .32
© Copyright 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 Replaceable Units (FRUs). In this guide, CRUs and FRUs will often be
referred to as parts.
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 IBM.
This guide contains procedures for replacing the following parts:
v Power supply
v System board
v Microprocessor
v Memory modules
v PCI adapter
v Hard disk drive
v Optical drive
v Diskette drive
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
from the World Wide We b at http://www.ibm.com/pc/support/.
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
the World Wide Web at http://www.ibm.com/pc/support/.
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 instructions
v Publications
v Troubleshooting information
v Parts information
v Downloads and drivers
v Links to other useful sources of information
© Copyright IBM Corp. 2005 v
To access this information, point your browser to
http://www.ibm.com/pc/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.
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 remove the cover, see “Removing the cover”
on page 5.
Locating components
The following illustration will help you locate the various components in your
computer.
1 Optical drive
2 Memory modules
3 Power supply
4 Hard disk drive
5 PCI adapter connector
6 Optional PCI adapter
7 System board
8 Internal speaker
9 Diskette drive
© Copyright IBM Corp. 2005 1
Locating connectors on the front of the computer
This section shows the various external connectors on the computer to which you
can attach external devices.
1
3
9
4
1 IEEE 1394 connector 4 Microphone connector
2 USB connector 5 Headphone connector
3 USB connector
2 Hardware Replacement Guide
Locating connectors on the rear of the computer
The following illustration shows the location of connectors on the rear of the
computer.
1 Power supply diagnostic
11 USB connectors (2)
LEDs
2 Voltage selection switch 12 Standard keyboard connector
3 Power connector 13 PCI Express x16 adapter connector (some
models)
4 Audio line in connector 14 PCI adapter connector
5 Audio line out connector 15 PCI adapter connector
6 Microphone connector 16 PCI Express x1 adapter connector
7 Serial connector (COM 1) 17 Standard mouse connector
8 Parallel connector 18 Ethernet connector
9 VGA monitor connector 19 Serial connector (COM 2) (some models)
10 USB connectors (2)
Chapter 1. Locations 3
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.
1 Speaker connector 12 PCI adapter connector
2 Memory connector 4 13 PCI adapter connector
3 Memory connector 3 14 Serial connector (COM 2)
4 Memory connector 2 15 PCI Express x1 adapter connector
5 Memory connector 1 16 Clear CMOS/Recovery jumper
6 Front Panel connector 17 Battery
7 Power supply connector 18 Microprocessor fan connector
8 P ATA IDE connector 19 Microprocessor
9 System fan connector 20 Microprocessor heat sink
10 SATA IDE connectors (4) 21 12V power connector
11 PCI Express x16 adapter connector 22 Diskette drive connector
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 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 http://www.ibm.com/pc/support/.
Note: Use only the parts provided by IBM.
Removing the cover
Important
Turn off the computer and wait 3 to 5 minutes to let the computer cool
before removing the computer cover.
1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down your
operating system, and turn off all attached devices.
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
computer. See “Locating connectors on the front of the computer” on page 2
and “Locating connectors on the rear of the computer” on page 3.
4. Remove any locking devices such as a padlock or Kensington lock that secure
the computer cover.
5. Press the cover-release button on the right side cover, slide the cover to the
rear, and remove.
© Copyright IBM Corp. 2005 5
To replace the cover, go to “Completing the parts replacement” on page 31.
Removing and replacing the front bezel
1. Remove the computer cover. See “Removing the cover” on page 5.
2. To release the front bezel from the chassis, press the blue button at the top of
the chassis and pull the bezel outward as shown.
3. To install the bezel, align the tabs on the bottom of the bezel with the
corresponding holes in the chassis. Pivot the bezel until it snaps into position at
the top of the chassis.
4. Go to “Completing the parts replacement” on page 31
Replacing the power supply
Attention:
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 or in the
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick
Reference or HMM, go to http://www.ibm.com/pc/support/.
This procedure requires a flat-blade screwdriver.
1. Remove the computer cover. See “Removing the cover” on page 5.
2. Disconnect the power supply connectors at each of the drives.
6 Hardware Replacement Guide
3. Push the blue release lever 1to the left and pull the blue handle 2
outward. Pivot the hard disk drive outward to the fully open position as
shown.
4. Disconnect the power supply cables 1 and 2 connected to the system
board.
Chapter 2. Replacing hardware 7
5. Remove the four screws at the rear of the chassis that secure the power
supply.
6. Press inward on the metal retainer inside the chassis and remove the power
supply from the computer.
7. Install the new power supply into the chassis so that the screw holes in the
8. Install and tighten the four screws at the rear of the chassis that secure the
9. Reconnect the power supply connectors to the system board. For additional
10. Reconnect the power supply connectors to each of the drives.
8 Hardware Replacement Guide
power supply align with those in the chassis.
Note: Use only the screws provided.
power supply.
information, see “Identifying parts on the system board” on page 4.
11. Push the blue lever 1 and pivot the hard disk drive inward until it is
latched into position.
12. Go to “Completing the parts replacement” on page 31.
Chapter 2. Replacing hardware 9
Replacing the system board assembly
Attention:
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 or in the
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick
Reference or HMM, go to http://www.ibm.com/pc/support/.
1. Remove the computer cover. See “Removing the cover” on page 5.
2. Lay the computer on its side to make it easier to access the system board.
3. Carefully note the location of all cable connections on the system board. It will
be necessary to reconnect them correctly after you install the new system
board assembly. See “Identifying parts on the system board” on page 4 to
locate the cables.
Important
Note the cable routing. It is important to route the cables the same way
after you install the new system board.
4. Disconnect all cables connected to the system board.
5. Remove the air baffle by pressing on the tab and pulling the air baffle up.
6. Remove any PCI adapter cards. See “Replacing a PCI adapter” on page 20.
10 Hardware Replacement Guide
7. Remove the screws 1 through 7.
8. Slide the system board toward the front of the computer to disengage it from
the mounting tabs and lift it out.
9. Place the defective system board next to the new system board on a clean, flat
surface.
10. Remove all memory modules from the defective system board, and install
them in the same connector on the new system board. See “Replacing a
memory module” on page 19. Return here after installing the memory
modules.
11. Remove the heat sink and microprocessor from the defective system board,
and install it on the new system board. Perform steps 5 on page 14 through
step 14 on page 18. Return here after installing the microprocessor.
Chapter 2. Replacing hardware 11
12. Install the new system board assembly into the computer chassis by aligning
the four slots in the metal plate on the bottom of the system board with the
tabs in the chassis.
Important
Make sure to correctly align the metal plate on the bottom of the system
board with the tabs in the chassis. Otherwise, the system board might be
damaged when you install the screws.
13. Align the seven screw holes, and install the screws.
14. Reinstall all adapter cards. See “Replacing a PCI adapter” on page 20.
15. Route the fan cable through the notch on the side of the air baffle. Then,
reinstall the air baffle by aligning the tabs with the holes in the chassis, and
press the air baffle down until it is secure.
16. 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.
17. Go to “Completing the parts replacement” on page 31.
12 Hardware Replacement Guide
Replacing the microprocessor
Attention:
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 or in the
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick
Reference or HMM, go to http://www.ibm.com/pc/support/.
Important
Leave your computer turned off 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
When you receive a new microprocessor, you will also receive a new heat
sink and vacuum pen. You must use the new heat sink with the new
microprocessor. If you use the old heat sink with the new microprocessor,
your computer might overheat causing intermittent problems.
Important
Avoid handling the microprocessor with your hands, and avoid contact with
the microprocessor contacts. Use the vacuum pen provided to remove and
install the microprocessor. If you must touch the microprocessor, touch only
the sides.
1. Remove the computer cover. See “Removing the cover” on page 5.
2. Lay the computer on its side.
3. Remove the air baffle by pressing on the tab and pulling the air baffle up.
4. Disconnect the fan cable from the system board. Note the cable connector
location on the system board.
Chapter 2. Replacing hardware 13
5. Pivot lever 1 securing the heat sink until it is fully in the up position.
Remove the heat sink 2 from the system board by carefully lifting it up and
off the system board.
Note: If you are replacing a defective system board you must reinstall the
same heat sink. Carefully 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.
6. Release the locking lever 2 that secures the microprocessor 1, then pivot
the microprocessor retainer 3 until it is fully open.
14 Hardware Replacement Guide
7. Using the vacuum pen1, 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. Take notice of the orientation of the notches 1 on the microprocessor.
This is important when reinstalling the microprocessor on the system
board.
* XXXX XXXXX*
b. Do not drop anything onto the microprocessor socket while it is exposed.
The socket pins must be kept as clean as possible.
8. Make sure that the microprocessor retainer is fully open.
Chapter 2. Replacing hardware 15
9. Loosen the protective cover 3 that protects the gold contacts on the
microprocessor 2 but do not remove it. Use the vacuum pen 1 to pick up
the microprocessor then completely remove the cover.
* XXXXXXXXX*
10. 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.
16 Hardware Replacement Guide
11. Using the vacuum pen 1, lower the microprocessor straight down into the
microprocessor socket.
Note: Install the black protective cover that was removed from the new
microprocessor onto the defective microprocessor after the installation is
complete.
12. Pivot the retaining plate3 to the closed position and pivot the locking lever
2 to secure the microprocessor 1in place. Make sure the locking lever is
engaged with the retainer tab when securing the microprocessor.
Note: If you are replacing the system board, there will be a black protective
cover on the retainer to protect the microprocessor socket. As you close the
microprocessor retainer, remove the cover. Place the black protective cover on
the microprocessor retainer of the defective system board.
Chapter 2. Replacing hardware 17
13. Slide the heat sink 2 into position over the microprocessor. Lower the lever
1 to secure the heat sink.
Note: If you are replacing a defective system board, use the heat sink that
was removed earlier.
14. If you are replacing the system board, continue at step 12 on page 12. If you
are replacing only the microprocessor, continue at the next step.
15. Route the fan cable through the notch on the side of the air baffle. Then,
install the air baffle by aligning the tabs to the holes in the chassis.
16. Reconnect the fan cable to the system board.
17. Go to “Completing the parts replacement” on page 31.
18 Hardware Replacement Guide
Replacing a memory module
Attention:
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 or in the
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick
Reference or HMM, go to http://www.ibm.com/pc/support/.
1. Remove the computer cover. See “Removing the cover” on page 5.
2. Locate the memory connectors. See “Locating components” on page 1.
3. Open the retaining clips, and lift the memory module out of its connector.
4. Ensure that the notch on the new memory module 1aligns correctly with the
connector key 2 on the system board. Push the memory module straight
down into the connector until the retaining clips close.
5. Go to “Completing the parts replacement” on page 31.
Chapter 2. Replacing hardware 19
Replacing a PCI adapter
Attention:
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 or in the
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick
Reference or HMM, go to http://www.ibm.com/pc/support/.
1. Remove the computer cover. See “Removing the cover” on page 5.
2. Push the blue adapter latch as indicated and pivot it to the open position.
3. Remove the adapter by pulling it straight out of the adapter connector.
4. Install the new adapter into the same adapter connector. Ensure the adapter is
fully seated into the adapter connector.
20 Hardware Replacement Guide
5. Pivot the blue adapter latch to the closed position to secure the adapters.
6. Go to “Completing the parts replacement” on page 31.
Chapter 2. Replacing hardware 21
Replacing a hard disk drive
Attention:
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 or in the
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick
Reference or HMM, go to the World Wide We b at http://www.ibm.com/pc/support/.
Important
When you receive a new hard disk drive, you will also receive a Product
Recovery CD. The Product Recovery CD will enable you to restore the contents
of the hard disk drive to the same state as when the computer was originally
shipped from the factory. For more information on recovering
factory-installed software, refer to ″Recovering software″ in the Quick
Reference.
1. Remove the computer cover. See “Removing the cover” on page 5.
2. Pull the blue release lever 1 and pivot the drive bay until it is in the
position shown.
3. Disconnect the signal and power cables from the hard disk drive.
22 Hardware Replacement Guide
4. Slide the hard disk drive out of the hard drive bay by pulling the blue handle.
5. Remove the defective hard disk drive from the blue bracket by flexing the
bracket.
6. To install the new hard disk drive into the blue bracket, flex the bracket and
align the pins 1 through 4on the bracket with the holes in the hard disk
drive. Do not touch the circuit board 5 on the bottom of the hard disk drive.
Chapter 2. Replacing hardware 23
7. Insert the new hard disk drive into the hard drive bay with the circuit board
side facing downward.
8. Connect the power and signal cables to the new hard disk drive. See
“Identifying parts on the system board” on page 4.
9. Press the blue tab 1 to pivot the drive into the computer. Route the cables
so that the hard disk drive bay can be pivoted all the way into position.
10. Go to “Completing the parts replacement” on page 31.
24 Hardware Replacement Guide
Replacing an optical drive
Attention:
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 or in the
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick
Reference or HMM, go to http://www.ibm.com/pc/support/.
1. Remove the computer cover. See “Removing the cover” on page 5.
2. Disconnect the signal and power cables from the rear of the failing drive.
3. Release the drive by pressing on the blue retainer lever at the side of the drive
and sliding it outward from the front of the computer.
4. Remove the retainer bracket from the failing drive and install it on the new
drive.
Chapter 2. Replacing hardware 25
5. Install the optical drive into the bay until it snaps into position.
6. Connect the signal and power cables to the drive.
7. Go to “Completing the parts replacement” on page 31.
26 Hardware Replacement Guide
Replacing the diskette drive
Attention:
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 or in the
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick
Reference or HMM, go to http://www.ibm.com/pc/support/.
1. Remove the computer cover. See “Removing the cover” on page 5.
2. Remove the front bezel. See “Removing and replacing the front bezel” on page
6.
3. Disconnect the signal and power cables from the rear of the diskette drive.
4. Release the drive by pressing on the blue retainer lever at the side of the drive
and sliding it outward from the front of the computer.
5. Remove the retainer bracket from the failing drive and install it on the new
drive.
6. Install the diskette drive into the bay until it snaps into position.
7. Connect the signal and power cables to the drive.
8. To install the new bezel, align the tabs on the bottom of the bezel with the
corresponding holes in the chassis. Pivot the bezel until it snaps into position at
the top of the chassis.
9. Go to “Completing the parts replacement” on page 31.
Chapter 2. Replacing hardware 27
Replacing the keyboard
Attention:
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 or in the
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick
Reference or HMM, go to http://www.ibm.com/pc/support.
1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down the
computer, and turn off all attached devices.
2. Unplug all power cords from electrical outlets.
3. Locate the keyboard connector. See “Locating connectors on the rear of the
computer” on page 3 and “Locating connectors on the front of the computer”
on page 2.
Your keyboard might be connected to the standard keyboard connector 1 at
the rear of the computer or to a USB connector 2 at either the front or rear of
the computer. Locate the connector for the keyboard.
4. Disconnect the failing keyboard cable from the computer and connect the new
keyboard cable to the same connector.
5. Go to “Completing the parts replacement” on page 31.
28 Hardware Replacement Guide
Replacing the mouse
Attention:
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 or in the
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick
Reference or HMM, go to http://www.ibm.com/pc/support/.
1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down the
computer, and turn off all attached devices.
2. Unplug all power cords from electrical outlets.
3. Locate the mouse connector. See “Locating connectors on the rear of the
computer” on page 3 and “Locating connectors on the front of the computer”
on page 2.
Your mouse might be connected to the standard mouse connector 1 at the
rear of the computer or to a USB connector 2 at either the front or rear of the
computer. Locate the connector for the mouse.
4. Disconnect the failing mouse cable from the computer and connect the new
mouse cable to the same connector.
5. Go to “Completing the parts replacement” on page 31.
Chapter 2. Replacing hardware 29
Replacing the internal speaker
Attention:
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 or in the
Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick
Reference or HMM, go to http://www.ibm.com/pc/support/.
1. Remove the computer cover. See “Removing the cover” on page 5.
2. To locate the internal speaker, see “Locating components” on page 1.
3. Disconnect the speaker cable from the system board. See “Identifying parts on
the system board” on page 4.
4. Slide the speaker 1 downward to release it from the tabs that secure it.
5. Position the new speaker and slide it upward so that it is held in position by
the metal tabs.
6. Connect the speaker cable to the system board. See “Identifying parts on the
system board” on page 4.
7. Go to “Completing the parts replacement” on page 31.
30 Hardware Replacement Guide
Completing the parts replacement
After replacing a failed part, you need to install any other removed parts, install
the computer cover, and reconnect any 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
Utility″ in your Quick Reference.
To complete the 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. Clear any cables that might impede the replacement of the computer cover.
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
until it latches.
Chapter 2. Replacing hardware 31
4. Reconnect the external cables. Plug the power cord into the computer then into
a properly grounded power receptacle. See “Locating connectors on the front of
the computer” on page 2 and “Locating connectors on the rear of the
computer” on page 3.
5. If you are replacing the system board, you must update (flash) the BIOS, see
“Updating (flashing) BIOS from a diskette.”
6. To update your configuration, see ″Starting the Setup Utility″ in the Quick
Reference that was included with your computer.
Updating (flashing) BIOS from a diskette
Important
Start the IBM Setup Utility program to view your system information. See
“Starting the IBM Setup Utility” in your Quick Reference. 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, do the following:
1. Insert a system program update (flash) diskette into the diskette drive (drive A)
in your computer. System program updates are available at
http://www.ibm.com/pc/support on the World Wide Web.
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 which corresponds to the language then press Enter.
4. When prompted to change the serial number, press Y.
5. Type in the seven character serial number of your computer 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 then press
Enter.
8. Follow the instructions on the screen to complete the update.
32 Hardware Replacement Guide
Part Number: 39J7726
Printed in USA
(1P) P/N: 39J7726
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