2.The top cover is secured by three screws along the top of the back panel and two screws on each side of the main unit. Remove the screws and put them in a safe place.

back panel screws

3.Now turn the main unit around so the front panel faces you. Grasp the cover and pull it toward you, away from the back of the computer.

4.When the cover clears the main unit, lift it off and set it aside.

A-2Installing Option Cards