Dell OptiPlex 755 User Manual page 50

1
card retention latch
4 Disconnect the PS/2 serial adapter cable from the system board (see "System Board Components" on
page 32).
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:
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.
8 Before you close the card retention mechanism, ensure that:
• The tops of all cards and filler brackets are flush with the alignment bar.
• The notch in the top of the card or filler bracket fits around the alignment guide.
9 Secure the card(s) by closing the card retention latch and snapping it into place.
10 Replace the computer cover (see"Replacing the Computer Cover" on page 317).
50
Cards
2
1
2
alignment guide