I have been overclocking my CPU but only mildly due to the lack of a very good heatsink. Anyhow, I still have plenty of room to OC but what happens is if I set my frequency to 390x8=3.12GHz when I go to stress test with prime95 it crashes me to a blue screen. It works fine at 380x8. I believe that it is because my bios forces me to set voltage control to auto in order to change the clock frequency. I'd appreciate some help as I plan on getting a new heatsink and overclocking a lot more.
Also, this is what I'm running
Intel C2D E6750 2.66GHz
Nvidia GTX 260
4 GB DDR2 800 RAM
And actually, I'm looking at info from HWiNFO and I can actually see that the normal CPU configuration was '2666.7 MHz = 8 x 333 MHz @ 1.3500 V' while it also shows my current configuration '3074.0 MHz = 8 x 384.2 MHz @ 1.3500 V'
So I can only conclude that the Auto setting in my bios isn't doing anything to voltage and that's why it crashes when i get too high.