Unplug your computer, take it to wherever your washer/dryer is, plug it directly into the wall and turn it on. Turn your washer/dryer on and off a few times, it should surge and fry your power supply. Happened to my buddy's computer a few times before he found out it was a washing machine/dryer outside of his room causing it. I told him to plug it into a surge protector and he's never had the problem since.