Dell dxcwrk1 - XPS - One Owner's Manual page 100

5 Remove the TV-in port cable and the infrared-emitter port cable from their
routing guides.
6
Lift the I/O-board assembly off the computer base.
1
1 power-supply light cable
3 TV-in port cable
5 I/O-board assembly
7 Push the securing tabs outward to release the I/O board and then lift the I/O board
away from the I/O-board bracket.
1
1 I/O-board bracket
3 I/O board
100
| Removing the I/O-Board
2
5
2 3
3
4
2 power-port cable
4 infrared-emitter port cable
2 securing tabs (4)