some motherboards have automatic overclocking check the BIOS for it or the motherboard manual, that thing is way to hot for my liking, i would think about getting a new HSF something like the zalman CNPS7700-CU or the XP-120 with a 120 mm fan
download this and see if it starts throttling when running something CPU intensive
http://www.benchmarkhq.ru/cgi-bin/mclick.cgi?54
I'm out of bed and dressed, what more do you want?
I always take life with a grain of salt, ... a slice of lemon, ...and a shot of tequila
I used to have an open mind but my brains kept falling out
One more step to enlightenment ... but which way ?