Dell OptiPlex 760 - Manual (Page 75)

9. Replace the computer cover (see Replacing the Computer Cover ).
Removing a PS/2 Serial Port Adapter
1. Follow the procedures in Working on Your Computer .
2. Remove the computer cover (see Removing the Computer Cover ).
3. Gently push the release tab on the card retention latch from the inside to pivot the latch open. The latch will remain in the open position.
4. Disconnect the PS/2 serial adapter cable from the system board (see System Board Components ).
5. If necessary, disconnect any external cables connected to the adapter.
6. Ease the PS/2 serial-port adapter bracket out of its retention slot.
7. If you are removing the adapter permanently, install a filler bracket in the empty card-slot opening.
NOTE: See the documentation for the PS/2 serial port adapter for information about the cable connections.
1 card retention latch 2 alignment guide
NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep
dust and dirt out of your computer and maintains the airflow that cools your computer.