Service Manual

Removing the System Board
NOTE: 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 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 desired 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 them correctly after you replace the system board.
Prerequisites
1. Remove the both the left and right side-panels. See “
Removing the Side Panels”.
2. Remove the
memory fan.
3. Remove the
graphics card.
4. Remove the multiple graphics cards.
5. Remove the
coin cell battery.
6. Remove the memory modules.
7. Remove the processor liquid-cooling assembly fan.
8. Remove the wireless card.
9. Remove the
processor.
Procedure
NOTE: Note the routing of all cables as you remove them so that you can reroute them correctly after you replace the
system board. For information on system board connectors, see “System-Board Components”.
1. Lay the computer on the left side.
2. Disconnect all the cables connected to the system-board assembly.
3. Remove the screws that secure the system-board assembly to the chassis.
4. Slide the system-board assembly towards the front of the chassis to disengage it from the latches that secure it to the chassis.
5. Lift the system-board assembly out of the chassis.
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