Notice that each access slot cover on the back panel is secured by a tab at the bottom and a clip at the top. Locate the access slot cover that corresponds to the position of the option card you installed. Then hold the back panel of the computer with the inside facing you. As shown in Figure 4-5, push down on the clip at the top and push out to remove the cover.

Figure 4-5. Removing an access slot cover

Replacing the Main Unit Cover

After you install the option card, follow these steps to replace the main unit’s cover:

1.With the back of the computer facing you, hold the cover over the computer with the side feet on the left. Tip the cover slightly down- ward near the front panel.

2.Lower the cover onto the main unit. Slide the front edge of the cover beneath the top edge of the computer’s front panel. Make sure that the bottom edges of the cover fit inside the main unit. Then lower the back of the cover so it is in position.

3.To secure the cover, replace the two screws on either side of the main unit. Then replace the plastic inserts over the side feet.

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