HP Compaq dc7700 MT Hardware Reference Manual page 30

c. If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion
socket away from the card and carefully rock the card back and forth until the connectors pull
free from the socket. Lift the card straight up to remove it. Be sure not to scrape the card
against other components.
Figure 2-13
9. Store the removed card in anti-static packaging.
10. If you are not installing a new expansion card, install an expansion slot cover to close the open
slot.
CAUTION
expansion slot cover for proper cooling of internal components during operation.
24 Chapter 2 Hardware Upgrades
Removing a PCI Express x16 Expansion Card
After removing an expansion card, you must replace it with a new card or
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