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How To Open a PC Case

Before opening the case, unplug the PC to avoid an electrical shock hazard. Exercise caution as there are sharp edges on a PC and its components. Always wear a static electricity discharge strap and attach the lead to the metal frame of the case, when working with your PC's components to avoid damaging your PC. Note that some manufacturers will void your PC's warranty if you open the case.

Caution: Please read our safety information before attempting any testing or repairs.

  1. Unplug the PC.

  2. While not strictly necessary, it is generally advisable to disconnect all of the wires from the back of the PC.

  3. Remove the screws or unfasten whatever secures the cover in place.

  4. Remove the shell or panel.

The method to open a case varies and it is not always obvious how it is done. A large percentage of cases have the screws on the back, along the edges. A plastic cover plate may have to be removed first. It is held in place with snaps and removed by gently tugging a corner. After removing the screws, a "U" shaped shell or a single panel will slide back (and/or up) from a tower case or forward (and/or up) from a desktop case.

Other designs include a case with the fasteners on the front, behind a removable plastic face plate or toolless designs that use a thumbscrew, sliding lock or simple friction to secure the cover in place. Look for screws along the perimeter of the case or devices that resemble a latch. You may have to do some detective work to figure out how to open your particular case.

When you put the cover back on, note any guide rails or alignment guides that must be matched for the cover to fit securely. Also, be careful not to snag any wires, which can easily be sliced by the case.




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