I have a bit of a problem with my system (see sig below). I have been able to get it stable at 4 GHZ using a X20 multiplier and a Vcore of 1.408 volts. Strangely, when I DROP Vcore by 1 step to 1.376 volts it runs OK until I try running Prime95.
Then Vcore goes to 1.536 volts and the core temperature climbs above 50 degrees C. Clearly unsustainable.
This seems very strange. I stepped up Vcore a step at a time. All resulted in predictable Vcore - EXCEPT 4th step to 1.376 volts.
Does this seem to be a BIOS problem? Do other people see this effect? Any explanations?
I will run at 5 steeps (1.408 V) but would like to drop down a notch. Suggestions?