Dell Inspiron 15-7558, Service Manual

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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 battery .
3 Remove the memory module .
4 Remove the fan .
5 Remove the heat sink .
Procedure
1 Remove the screws that secure the display-cable bracket to the system board.
2 Lift the display-cable bracket off the system board.
3 Using the pull tab, disconnect the display cable from the system board.
4 Peel off the tape that secures the Windows-button board cable to the system
board.
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