Dell XPS 13 7390 Service Manual - Page 51

Replacing the system board, Procedure, program after you replace the system board.

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27 Replacing the system board NOTE: 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. Topics: • Procedure • Post-requisites • Entering the Service Tag in the BIOS setup program Procedure 1. Using the alignment posts, place the system board on the palm-rest assembly and align the screw holes on the system board with the screw holes on the palm-rest assembly. 2. Replace the 10 screws (M1.6x2.5) that secure the system board to the palm-rest assembly. 3. Connect the display cable to the system board. 4. Align and place the display cable bracket on the system board. 5. Replace the two screws (M1.6x2.5) that secure the display cable bracket to the system board. 6. Connect the keyboard-controller cable to the system board and close the latch to secure the cable. 7. Connect the touchpad cable to the system board and close the latch to secure the cable. Replacing the system board 51

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Replacing the system board
NOTE:
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.
Topics:
•
Procedure
•
Post-requisites
•
Entering the Service Tag in the BIOS setup program
Procedure
1.
Using the alignment posts, place the system board on the palm-rest assembly and align the screw holes on the system board with the
screw holes on the palm-rest assembly.
2.
Replace the 10 screws (M1.6x2.5) that secure the system board to the palm-rest assembly.
3.
Connect the display cable to the system board.
4.
Align and place the display cable bracket on the system board.
5.
Replace the two screws (M1.6x2.5) that secure the display cable bracket to the system board.
6.
Connect the keyboard-controller cable to the system board and close the latch to secure the cable.
7.
Connect the touchpad cable to the system board and close the latch to secure the cable.
27
Replacing the system board
51