Warning: Always shut down your computer before opening it to avoid damaging its internal components or causing injury. Shut down the computer and wait five minutes before continuing.
3. Loosen the four captive screws at the base of the computer and gently remove the access panel.
Important: To avoid electrostatic discharge, always ground yourself by touching metal before you touch any parts or install any components inside the computer. To avoid static electricity building back up in your body, do not walk around the room until you have completed the installation and closed the computer.
4. Touch a metal surface inside the computer.
5. Unplug the power cord.
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