Back to Contents PageDell™ Dimension™ 4600C Service ManualOpening the Computer CoverOpening the Computer Cover1. Shut down the computer through the Start menu.2. Turn off any attached devices and disconnect them from their electrical outlets.3. Disconnect the computer power cable from the wall outlet, and then press the power button to ground the system board.4. Remove the computer stand, if it is attached.5. If you have installed a padlock through the padlock ring on the back panel, remove the padlock.6. Locate the two release buttons shown in the illustration. Then press the two release buttons as you lift the cover.Raise the back of the cover, and pivot it toward the front of the computer.Back to Contents PageCAUTION: Before you begin any of the procedures in this section, follow the safety instructions in your Owner's Manual or Product InformationGuide.CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.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.