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 base cover.
2  Remove the top cover.
3  Remove the hard drive.
4  Remove the processor fan.
5  Remove the processor heat sink.
6  Remove the processor.
7  Remove the video-card fan.
8  Remove the memory modules.
9  Remove the wireless card.
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