The system board's BIOS contains the system service tag number, which is also visible on a bar-code
label on the bottom of the computer. The replacement kit for the system board assembly includes a
floppy disk or CD that provides a utility for transferring the service tag number to the replacement
system board assembly.
NOTICE: After replacing the microprocessor module, update the BIOS using a flash BIOS
update program floppy disk or CD that came with the replacement microprocessor.
Removing the System Board
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Remove the hard drive and fixed optical drive.
3. Remove any installed Mini PCI cards.
4. If migrating the memory, remove all installed memory modules.
5. Remove the keyboard assembly.
6. Remove the hinge cover.
7. Remove the display assembly.
8. Remove the palm rest assembly.
9. Remove the video card.
10. Remove the microprocessor thermal cooling assembly.
11. If migrating the microprocessor, remove the microprocessor module.
12. Remove the three M2.5 x 4-mm captive-washer screws from the system board.
13. Remove the M2.5 x 20-mm screw from the center of the LED board.
14. Lift the front of the system board and work it out of the back panel.
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