Dell 5521, 3521 manual Replacing the I/O Board, Procedure, Postrequisites

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 7. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance.

Procedure

1Gently slide the I/O board below the tab that secures it and snap the I/O board into place.

2Replace the screw that secures the I/O board to the computer base.

3Connect the I/O board cable to the connector on the I/O board.

Postrequisites

1Replace the palm-rest. See "Replacing the Palm-Rest" on page 35.

2Replace the keyboard. See "Replacing the Keyboard" on page 29.

3Replace the optical-drive assembly. See "Replacing the Optical-Drive Assembly" on page 21.

4Follow the instructions from step 3 and step 4 in "Replacing the Memory Module(s)" on page 17.

5Replace the battery. See "Replacing the Battery" on page 13.

6Follow the instructions in "After Working Inside Your Computer" on page 9.

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