My P4P800 is about 10C lower than IC7. Then, I have two IC7's, one is higher than the other by 15C. One of the IC7 (the lower reporting one) is the same as the IS7.

I believe Abit uses two different vendors on their boards, sometimes they are just off with each other. In this case, BIOS updates wouldn't do anything.

I suspect also the Asus board is reporting a bit low. I am simply using the best C/W of any cooler or w/c and judge whether it makes any sense. Unless, the W/C has below 0.15 C/W, which means 100 Watts heat dissipation yiedls 15C, add ambient 20C equals 35C including TIM and case temp factors.