5Remove the computer stand, if it is attached (see page 12).

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.

NOTICE: Ensure that there is sufficient space to support the open cover—at least 30 cm (1 ft) of desk top space.

6Locate the two release buttons shown in the illustration. Then press the two release buttons as you lift the cover.

NOTICE: Open the cover slowly to ensure that you do not damage any cables.

7Raise the back of the cover, and pivot it toward the front of the computer.

NOTE: Make sure that the computer is oriented with the cable security tab on top, as shown in the illustration.

cable security tab

release buttons (one on each side)

back of computer

Adding Parts

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Image 59
Dell H7228 manual Cable security tab, Back of computer Adding Parts