Removing The System Board - Dell Latitude D400 Service Manual

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System Board
Removing the System Board
Replacing the System Board

Removing the System Board

The system board's BIOS chip contains the Service Tag, which is also visible on a bar code label on the bottom of the computer. The replacement kit for the
system board may include a CD that provides a utility for transferring the Service Tag to the replacement system board.
CAUTION: Before performing the following procedures, read the safety instructions in your System 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.
1. Follow the instructions in "Preparing to Work Inside the
2. Remove any installed memory
3. Remove the hard drive.
4. Remove the keyboard.
5. Remove the display.
6. Remove the palm rest.
7. If the system board has a removable BIOS chip, remove the M2 x 5-mm screw and lift the BIOS chip from the system board.
1 M2 x 5-mm screw 1428U
8. Disconnect the smart card cable from the system board.
Computer" to remove the battery and prepare the computer for work.
modules, smart card, modem, or PC Card.