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 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

left-side cover.

2. Follow the procedure from step 1 to step 4 in "

Removing the power-supply unit".

3. Remove the

memory modules.

4. Remove the solid-state drive.

5. Remove the

wireless card.

6. Remove the processor fan and heat-sink assembly .

7. Remove the graphics card.

8. 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. Disconnect all the cables connected to the system-board assembly.