Wowza, this bios owns. I dont know if its optimizing my motherboard usage lowering temps or reading them better, but when it was snowing outside I idled Motherboard and processor at 44 degrees, which was frustrating. Now I have 35 on idle processor (warmer weather by far) and 41 on motherboard.
Load went from roughly 47 mobo down to 42, and from 55 processor down to about 50. I dont know if this is simply a temperature monitor change or not, but I think it might be a power overhaul to get the 8 phase power working properly, because the chipset doesnt feel as physically hot anymore, and it used to get scorching when my hot CPU temps were blowing on the chipset heatsink.
edit... PS if you want to scare the poop out of yourself, set the bios to load defaults on start, and keep your monitors plugged in on the slot 2 video card. You get a nice black screen, because the default is PCI1->PCI2, and I was using PCI2->PCI1