Dell OptiPlex GX60 - Manual (Page 62)

Small Mini-Tower Computer
1. Disconnect the control-panel cable from the control-panel connector on the I/O panel. Disconnect the I/O cable from the I/O panel.
Note the routing of the control-panel cable as you remove it from the computer so that you can replace it correctly.
2. Remove all cables that are connected to the I/O panel, such as the chassis intrusion switch and internal speaker cables.
1 I/O cable 4 mounting screw
2 control-panel cable 5 chassis intrusion switch cable
3 front audio cable 6 internal speaker cable
1 internal speaker cable 4 control-panel cable
2 chassis intrusion switch cable 5 front audio cable
3 mounting screw 6 I/O cable