So all of a sudden, your box was too hot? That makes no sense, yet at the same time it does make sense. What I can't figure out is - why was I able to run so long previous to that fatal crash? And now I can not play for more than a couple minutes?
I have never had heat problems. I do know that my CPU runs about 135F, but that has never been a problem and I thought that was a normal temperature. I will try adding a fan and see if that helps...