I understand but from my experiences, with vdroop enabled the core voltage should sit around what I have it set at in the BIOS and then droop a little under load. This is how my Asus board works. My EVGA board reduces the idle core voltage quite a bit and then raises it to what I have in the BIOS. This seems backwards.
"why is my idle temp so low with vdroop on? Shouldn't it be higher and then drop under load? Is this a PSU problem?"
The issue is because of a different power saving function on the mobo. Your mobo is cutting the voltage going to the core when it is idle then raising it when it goes under load to reduce the power consumption. This has nothing to do with vdroop. Vdroop is just a function that disables the voltage to go higher than what it is set at under load.
Best answer selected by krazynutz.
nMakes perfect sense. Thanks Overshocked!
nBut now I have a new question. If it's a power-saving feature by the mobo, why does it get enabled when I enable vdroop? Have you seen this before on other mobos?