Removing The System Board; Prerequisites; Procedure - Dell P78G Service Manual

Removing the system board

WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
working inside your
the instructions in
practices, see the Regulatory Compliance home page at
regulatory_compliance.
NOTE: Your computer's Service Tag is stored in the system board. You
must enter the Service Tag in the BIOS setup program after you replace the
system board.
NOTE: Replacing the system board removes any changes you have made to
the BIOS using the BIOS setup program. You must make the appropriate
changes again after you replace the system board.
NOTE: Before disconnecting the cables from the system board, note the
location of the connectors so that you can reconnect the cables correctly
after you replace the system board.

Prerequisites

1 Remove the base
2 Remove the battery.
3 Remove the rear
4 Follow the procedure from step 1 to step 8 in
keyboard assembly".

Procedure

1 Remove the screw (M2x3) that secures the display-cable bracket to the system
board.
2 Lift the display-cable bracket off the system board.
3 Using the pull-tab, disconnect the display cable from the system board.
4 Disconnect the power-adapter port cable from the system board.
5 Disconnect the coin-cell battery cable from the system board.
computer. After working inside your computer, follow
After working inside your
cover.
cover.
computer. For more safety best
www.dell.com/
"Removing the palm rest and
Before
73