HP EliteDesk 800 G1 Tower Service Manual page 116

5.
Release the slot cover retention latch that secures the slot covers by lifting the green tab on the
latch and rotating the latch to the open position.
6. 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. Pull the slot cover straight up then away from the inside
of the chassis.
104 Chapter 6 Removal and replacement procedures: Small Form Factor (SFF)
Before removing an installed expansion card, disconnect any cables that may be