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.
Remove the computer access panel.
Locate the correct vacant expansion socket on the system board and the corresponding expansion
slot on the back of the computer chassis.
Press straight down on the two green thumb tabs inside the chassis (1) and rotate the expansion
card retention latch up (2).
Before installing an expansion card, remove the expansion slot cover or the existing expansion
Regardless of the power-on state, voltage is always present on the system board as
Opening the Expansion Slot Retainer
Removing or Installing an Expansion Card