The computer boots normal but soon turns off. When rebooted, it dies again. It works for a few minutes in the morning, but throughout the day, it only boots after it has been turned off for over an hour, then turns off again as soon as the windows desktop appears. What are your troubleshooting steps and repairs that you, the on-call technician, will use to resolve this malfunction? What went wrong? How did you fix it? How much must you charge the customer?