eek 0_0. you have something running very very dangerously hot. (temp 2,3) which im guessing is your processor.... which is single core....... That graphics temp is still very high, but for the moment im more concerned with the unidentified ones running at extremely high temps. do you have any idea what they may be?

North and South Bridge? I've always had problems with the chipset running really hot, I have a fan on one of the heatsinks on the motherboard. It used freeze and shutdown in the past.