I recently was repairing a few problems with a Toshiba Satellite laptop (L305D-S5938 in this particular case) for someone and was getting nowhere real fast, because it overheated if you just looked at it funny. The second something normal caused the fan to get a little louder, *poof*, off it went; just shut right off in the middle of whatever you were doing. And on top of that, when it wasn't shutting off, it just took foreverrrrr to do anything. Anything.