Removing the system-board assembly
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.
Topics:
• Prerequisites
• Procedure
Prerequisites
NOTE
: Remove the SD card before removing the system board to avoid damage to the SD card.
1 Remove the base cover.
2 Remove the battery (half-length) or the battery (full-length).
3 Remove the wireless card.
4 Follow the procedure from step 1 to step 4 in “Removing the hard drive”.
5 Remove the solid-state drive (half-length) or the solid-state drive (full-length).
6 Remove the fans.
7 Remove the heat sink.
8 Remove the memory modules.
Procedure
NOTE
: The touch-screen cable is available only on laptop congurations with touch displays.
1 Disconnect the power-adapter port cable and speaker cable from the system-board assembly.
2 Open the latch and disconnect the keyboard-control board cable and touchpad cable from the system-board assembly.
3 Peel the tape to access the ngerprint reader cable.
4 Open the latch and disconnect the ngerprint reader cable (optional) from the system-board assembly.
5 Peel o the tape that secures the touch-screen cable to the system-board assembly if applicable.
6 Peel the tape and then disconnect the touch-screen cable from the system-board assembly if applicable.
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Removing the system-board assembly 47