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 USB dongle-bay cover.
2  Remove the back cover.
3  Remove the memory modules.
4  Remove the stand.
5  Remove the chassis fan.
6  Remove the inner frame.
7  Remove the system-board shield.
8  Remove the I/O panel.
9  Remove the processor heat-sink.
10  Remove the processor.
11  Remove the coin-cell battery.
12  Remove the memory fan.
13  Remove the wireless card.
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