System board, Removing the system board – Dell LATITUDE D400 User Manual
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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.
1.
Follow the instructions in "
Preparing to Work Inside the Computer
" to remove the battery and prepare the computer for work.
2.
Remove any installed
memory modules
, smart card,
modem
, or PC Card.
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.
8.
Disconnect the smart card cable from the 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 M2 x 5-mm screw 1428U