Dell OptiPlex GX620 - Manual (Page 122)

3. Press the tab to raise the riser-card retention latch.
4. Disconnect the cable that attaches the adapter to the system board connector (SER2).
5. Grasp the serial port adapter by its corners, and ease it out of its slot.
6. If you are removing the adapter permanently, install a filler bracket in the empty card-slot opening.
7. Lower the riser-card retention latch and press it into place.
8. Replace the riser-card cage:
a. Align the tabs in the side of the riser-card cage with the slots on the side of the computer, and slide the riser-card cage down into place.
b. Ensure that the riser cards are fully seated in the connectors on the system board.
9. Replace the computer cover .
10. Uninstall the adapter's driver. See the documentation that came with the adapter for instructions.
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1 riser-card cage
2 handle
3 riser cards (2)
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.