![]() ![]() On either side of you - what would be the top and bottom of the case, if it were standing up - is a large gray plastic tab set into the case. Make sure the ports are all closer to the floor than to the ceiling - if not, flip the computer so they are. Gently turn the computer on its side and spin it around so that you are looking at the rear (where most of the ports and connectors are). If you have any thumb drives or flash drives sticking out of the computer, remove them as well. Also disconnect any external cables, such as the monitor cable or a USB cable. If you have a Dell OptiPlex GX280, the procedure for opening the case is a relatively easy one.įirst, power down the computer and disconnect the power cord. Opening up a desktop computer case can be completely different from one computer to the next. When it comes to body style and design, desktop computers are a lot more varied than laptops.
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