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
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your computer.
For more safety best practices, see the Regulatory Compliance home
page at
www.dell.com/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 stability foot.
2 Remove the left and right side-panels. See “Removing the side panels”.
3 Remove the top fan.
4 Remove the graphics card or multiple graphics cards.
5 Remove the memory modules.
6 Remove the processor liquid-cooling assembly.
7 Remove the wireless card.
Procedure
NOTE: Note the routing of all cables as you remove them so that you can
route them correctly after you replace the system board. For information
on system-board connectors, see “
system-board components”.
1 Lay the chassis on the right side.
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