HP EliteDesk 800 Hardware Reference Manual page 34

8. Before installing an expansion card, remove the expansion slot cover or the existing expansion
card.
NOTE:
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.
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.
26 Chapter 2 Tower (TWR) hardware upgrades
Before removing an installed expansion card, disconnect any cables that may be
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