Important: Read "Safety information" before opening the cover.
- Shut down the operating system, remove any media (DVDs, CDs, or tapes) from the drives, and turn off all attached devices.
- Unplug all power cords from electrical outlets.
- Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer.
- Press the buttons on the sides of the computer and pivot the cover upward to open.