Removing the Side Panels
1 Loosen the two thumbscrews on the right side of the back panel. You may need a flathead screwdriver. These screws do not detach; they’ll stay on the side panel loosely until you tighten them again.
2 Pull the panel toward you until it stops. Lift the panel off the chassis and set it aside.
3 If you are replacing an optical drive, remove the other side panel in the same manner. Note that the screws on this panel detach and are loose from the panel.
4 Gently lay the computer on its side. Skip this step if replacing an optical drive.
182 hp media center pc user’s guide