CAUTION: Before you perform the following procedures, see the safety instructions in the Product
Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by
periodically touching an unpainted metal surface (such as the back panel) on the computer.
NOTICE: To avoid damaging the system board, you must remove the main battery before you begin
working inside the computer.
The system board's BIOS chip contains the Service Tag, which is also visible on a barcode label on the bottom of the computer. The replacement kit for the system board includes a CD that provides a utility for transferring the Service Tag to the replacement system board.
Remove the three M2.5 x 5-mm screws from the system board.
1
M2.5 x 5-mm screws (3)
2
system board bottom assembly
Disconnect the cable connector for the internal card with Bluetooth wireless technology from
the system board.
With the front of the computer facing you, lift the system board assembly from the right side,
and then lift the left side to raise the system board assembly out of the computer.
1
system board assembly
2
cable connector for internal card with Bluetooth wireless technology
NOTICE: Before turning on the computer, replace all screws and ensure that no stray screws remain
inside the computer. Failure to do so may result in damage to the computer.
Turn on the computer.
NOTE: After replacing the system board, enter the computer Service Tag sequence into the BIOS of the
replacement system board.
Insert the floppy disk or CD that accompanied the replacement system board into the
appropriate drive. Follow the instructions that appear on the screen.