I recently upgreaded from a pentium 4 1.8ghz to a 2.66 ghz. It is not overclocked and I'm not a gamer. just when surfing the internet or wotching youtube videos, when the cpu is at more than 60% for a few minutes it will get very hot and sometimes if it is on 100% few over 30 seconds it will turn of the computer. there is no where I can see the actual temp of the cpu. I was wondereing what I cando about this? I have already orded a new heatsink and fan that is sopposed do be better. Could this also be a problem with the cpu? thanks for your help