Replace the video card

The top cover and video I/O module are removed.

DANGER

To avoid serious injury from high currents, ensure that both power cords are disconnected prior to removing or replacing any parts.

Disconnect the two 6-pin power cables by pushing in on the video card connector retaining tab and pulling straight up on the connector for each.
Remove the video card mounting screw.
Pull the PCI Express retaining tab away from the video card and hold it in the released position.
Lift the vedeo card straight up until it is clear of the chassis.