If your device randomly shuts off and becomes very hot, the fan inside the tower may be clogged. Remove the fan and clean out debris. If the problem still persists, the fan unit should be replaced.

If your device is not reading DVDs and CDs, first check for a bad disk. If the disk does not work on other computers, it is a bad disk and there is no problem with your optical drive. If the disk is good, the optical drive may need to be replaced.