Replacing 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.
Procedure
1 Align the screw holes on the system board with the screw holes on the palm-rest assembly.
2 Replace the four screws (M2x2) that secure the system board to the palm-rest assembly.
3 Slide the ngerprint-reader cable to the system board and close the latch to secure the cable.
4 Slide the touch-screen board cable to the system board and close the latch to secure the cable.
5 Adhere the tape that secures the touch-screen board cable to the system board.
6 Slide the I/O-board cable to the system board and close the latch to secure the cable.
7 Adhere the tape that secures the I/O-board cable to the system board.
8 Connect the coin-cell battery cable to the system board.
9 Slide the touchpad cable to the system board and close the latch to secure the cable.
10 Slide the keyboard-backlight cable to the system board and close the latch to secure the cable.
11 Slide the keyboard cable to the system board and close the latch to secure the cable.
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52 Replacing the system board
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