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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