Dell XPS 8500 (Early 2012) - Manual (Page 83)

Replacing the Top I/O Panel
1 Align the screw holes on the top I/O panel with the screw holes on the top
panel.
2 Replace the screws that secure the top I/O panel to the top panel.
3 Connect the top I/O panel cables to the system board connectors, F_USB3
and F_AUDIO1. See "System-Board Components" on page 21.
Postrequisites
1 Replace the top cover. See "Replacing the Top Cover" on page 78.
2 Replace the optical drive. See "Replacing the Optical Drive" on page 69.
3 Replace the front bezel. See "Replacing the Front Bezel" on page 33.
4 Replace the computer cover. See "Replacing the Computer Cover" on
page 25.
5 Follow the steps in "After Working Inside Your Computer" on page 15.
Top I/O Panel 83