Well it is a bit hot however what could be is that you have your cpu shut off at a certain temperatue to prevent it from frying. Since I usually stress my computer alot (I convert AVI movies to DVD format) it usually stresses the computer a lot and since my Artic Silver wore off and I currently have no more my computer has been reaching some very high temp levels. For the past 5 days it was maintained at 72 Celsius, which I might add is extremely hot, It does sometimes random turn off which does cause loss of data however only happend once and I should have some artic silver later today.