Hey, recently I've been working on overclocking my CPU, and I noticed (both in task manager and in speed fan) that one of my cores (on my Q6600 quad core processor (65nm)) is always under an 80-90% load even when it's just idling, while the rest of the cores are under a very low load. I am running 64 bit vista. Also, it takes much longer for whichever core is under a heavier load to finish a stage (of calculations or whatever) in the multi-core prime 95 stress tester. I have closed all programs that I can, except for symantec anti-virus, which you cannot close all the way (at least to my knowledge). Is this normal? And if not, what can I do to fix it?