Dell Precision 690 - Manual (Page 38)

6. Press down the tab on the top of the card retainer at the appropriate card slot and pivot the card retainer back through the chassis wall.
7. Remove the card:
a. If necessary, disconnect any cables connected to the card.
b. If the card is full-length, press the release tab on the end of the alignment guides on the fan bracket.
c. If the connector has a release tab, press the release tab as you grasp the card by its top corners, and ease it out of its connector.
8. If you are replacing the card, see Installing PCI Express Graphics Cards in a Dual Configuration .
If you are not replacing the card, install a filler bracket in the empty card-slot opening.
9. Before you rotate the card retainer back into place, ensure that:
l The tops of all cards and filler brackets are flush with the alignment bar.
l The notch in the top of each card or filler bracket fits around the alignment guide.
1 release tab
2 card retainer
1 PCI Express x16 card
2 securing tab
3 PCI Express x16 card slot
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.
NOTE: The graphics card bridge (not present on all dual-graphics configurations) is unnecessary in a single card configuration.
NOTE: For extra security, remove the alignment guide (an upside-down screw) and screw it in right side up to secure a card.