Originally Posted by Widjaja
Doesn't BIOS put the CPU under some load which can cause the temperature increase while being viewed in BIOS?
The only way to be sure is to test it, and leave your clocks alone you have enough going on
I actually prefer Open Hardware Monitor 0.3.2 Beta for monitoring temps
Run prime95 in windows with your temp monitor running
The temp should not get about 70c under a load
Also I dont know if you read the instruction on thermal paste but its important. To much paste is bad. It a grain of rice