Replacing The I/O Board; Procedure; Postrequisites - Dell XPS 2720 Owner's Manual

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 11. After working inside your computer, follow the instructions in "After
Working Inside Your Computer" on page 13. For additional safety best practices
information, see the Regulatory Compliance Homepage at
dell.com/regulatory_compliance.

Procedure

1 Slide the power-port cable and power-supply indicator cable through the slot on
the I/O-board bracket.
2 Place the I/O board in the I/O-board bracket and press the securing tabs to secure
the I/O board to the I/O-board bracket.
3 Route the power-supply indicator cable through the routing guides and connect
the cable to the power-supply unit.
4 Connect the power-port cable to the power-supply unit.
5 Align the screw holes on the I/O-board assembly with the screw holes on the
middle cover.
6
Press down on the I/O-board assembly to connect the I/O board to the
system board.
NOTE: Ensure that no cables are placed under the I/O-board assembly.
7
Replace the screws that secure the I/O-board assembly to the middle cover.

Postrequisites

1 Replace the system-board shield. See "Replacing the System-Board Shield" on
page 32.
2 Replace the I/O panel. See "Replacing the I/O Panel" on page 41.
3 Replace the stand. See "Replacing the Stand" on page 22.
4 Replace the trim cover. See "Replacing the Trim Cover" on page 20.
5 Replace the back cover. See "Replacing the Back Cover" on page 18.
6 Follow the instructions in "After Working Inside Your Computer" on page 13.
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| Replacing the I/O Board