HP dx2818 - Microtower PC Hardware Reference Manual page 25

NOTE:
to the expansion card.
a. If you are installing an expansion card in a vacant socket, you must use a flatblade screwdriver
to pry out the metal shield on the rear panel that covers the expansion slot. Be sure to remove
the appropriate shield for the expansion card you are installing.
Figure 2-10
b. If you are removing a PCI 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. Be sure not to scrape the
card against the other components.
Figure 2-11
ENWW
Before removing an installed expansion card, disconnect any cables that may be attached
Removing an Expansion Slot Cover
Removing a PCI or PCI Express x1 Expansion Card
Removing or Installing an Expansion Card 19