Hardware reference guide

CAUTION: Regardless of the power-on state, voltage is always present on the system board as
long as the system is plugged into an active AC outlet. You must disconnect the power cord to
avoid damage to the internal components of the computer.
5. If the computer is on a stand, remove the computer from the stand.
6. Remove the access panel.
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 2-13 Opening the Expansion Slot Retainer
9. Before installing an expansion card, remove the expansion slot cover or the existing expansion
card.
ENWW Removing or Installing an Expansion Card 23