Dell OptiPlex GX280 - Manual (Page 222)

1 lever 5 card-edge connector
2 retention arm 6 card connector
3 filler bracket 7 riser board
4 card 8 card cage
7. Lower the retention arm and press it into place, securing the card(s) in the computer.
8. Replace the card cage:
a. Align the tabs in the side of the card cage with the slots on the side of the computer, and slide the card cage
down into place.
b. Ensure that the riser board is fully seated in the connector on the system board.
1 card cage