Dell OptiPlex GX270 - Manual (Page 10)

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Opening the Computer Cover
Dell™ OptiPlex™ GX270 Service Manual
1. Shut down the computer through the Start menu.
2. Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut
down your computer, turn them off now.
3. Disconnect any telephone or telecommunication lines from the computer.
4. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.
5. Remove the computer stand, if it is attached.
Small Form-Factor and Small Desktop Computers
1. Locate the two release buttons shown in the illustration. Then press the two release buttons as you lift the cover.
2. Raise the back of the cover, and pivot it toward the front of the computer.
Small Form-Factor Computer
Small Desktop Computer
CAUTION: Before you begin any of the procedures in this section, follow the steps in " Safety Instructions ."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
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.
NOTICE: Open the cover slowly to ensure that you do not damage any cables.
1 security cable slot
2 padlock ring
3 release buttons (one on each side)