Installing The System Board - Dell Latitude D631 Service Manual

17. Remove the four 5-mm hex screws on the back of the computer.
18. Lift the system board out and away from the base.
1 fan cable
4 antenna connector
Installing the System Board
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal
surface, such as a connector on the back of the computer.
1. Perform all the steps in Removing the System Board
NOTICE: When installing the system board, ensure that the fan cable and antenna cables are clear of the system board before fitting it into the base,
that the audio connectors are properly seated, and that the tab for the wireless switch fits properly into the detent on the slider mechanism.
2. Replace the battery (see Before Working Inside Your
3. Connect the AC adapter to the computer and to an electrical outlet.
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.
4. Turn on the computer.
NOTE: After replacing the system board, use the CD that accompanied the replacement system board to enter the computer Service Tag into the BIOS.
5. Insert the CD that accompanied the replacement system board into the appropriate drive and flash the system BIOS (see
instructions on the screen.
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2 system board
5 antenna connector
in reverse order.
Computer).
3 base
Flashing the BIOS). Follow the