Dell OptiPlex 755 User Manual page 120

Rotate the riser-card cage handle up and gently pull on the handle to lift the riser-card cage up and
b
away from the computer.
1
4 Gently lift the release tab on the card retention latch from the inside to pivot the latch open. Pivot the
latch until it snaps into the open position.
5 If you are installing a new PS/2 serial port adapter, remove the filler bracket to create an empty card-slot
opening.
6 If you are replacing a PS/2 adapter that is already installed in the computer, remove the adapter.
7 If necessary, disconnect any cables connected to the adapter.
CAUTION:
To guard against electrical shock, be sure to unplug your computer from its electrical outlet before
installing any cards or adapters.
8 Align the PS/2 serial-port adapter bracket in the retention slot and press down firmly. Ensure that the
adapter is fully seated in the slot.
9 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.
120
Expansion Cards
2
riser-card cage
3
handle
1
2
2
3
riser cards (2)