HP Compaq Elite 8300 Series Reference Manual page 37

8. Before installing an expansion card, remove the expansion slot cover or the existing expansion
card.
NOTE: Before removing an installed expansion card, disconnect any cables that may be
attached to the expansion card.
a. If you are installing an expansion card in a vacant socket, remove the appropriate
expansion slot cover on the back of the chassis. Lift the expansion slot cover from the
expansion slot.
Figure 2-9 Removing an Expansion Slot Cover
b. If you are removing a standard PCI card or PCI Express x1 card, hold the card at each end
and carefully rock it 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 2-10 Removing a Standard PCI Expansion Card
Removing or Installing an Expansion Card 29