Remove any media from the drives and turn off all connected devices and the computer.
Disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer.
Remove the computer cover. For details, see Computer cover.
Disconnect the internal speaker cable from the internal speaker connector on the system board. See Parts on the system board.
Connect the internal speaker cable to the internal speaker connector on the system board. See Parts on the system board.
Reinstall the computer cover and reconnect the cables. For details, see Completing the parts replacement.