Replacing the I/O Board

WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 8. After working inside your computer, follow the instructions in

"After Working Inside Your Computer" on page 10. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance.

Procedure

1Align the screw hole on the I/O board with the screw hole on the palm-rest assembly.

2Replace the screw that secures the I/O board to the palm-rest assembly.

3Route the I/O-board cable and I/O-board grounding cable on the palm-rest assembly and adhere the tapes to secure the cables.

4Slide the I/O-board cable into the I/O-board cable connector and press down on the connector latch to secure the cable.

5Connect the I/O-board grounding cable to the system board.

Postrequisites

1Replace the mSATA card. See "Replacing the mSATA Card" on page 37.

2Replace the battery. See "Replacing the Battery" on page 22.

3Follow the instructions from step 2 to step 7 in "Replacing the Base Cover" on page 14.

46 Replacing the I/O Board

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Dell XPS L521X, 15, L521X13590620SA manual Replacing the I/O Board

XPS L521X, L521X13590620SA, 15 specifications

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