HP Compaq 6000 Pro SFF Hardware Reference Manual page 27

7. Locate the correct vacant expansion socket on the system board and the corresponding expansion
slot on the back of the computer chassis.
8. Release the slot cover retention latch that secures the PCI slot covers by lifting the green tab on
the latch and rotating the latch to the open position.
Figure 2-11
9. Before installing an expansion card, remove the expansion slot cover or the existing 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. Pull the slot cover straight up then away from the inside
of the chassis.
Figure 2-12
ENWW
Opening the Expansion Slot Retainer
Removing an Expansion Slot Cover
Removing or Installing an Expansion Card 21