I have two ASUS boards, Sabertooth Z77 and a P8Z68-V Pro Gen3 and version 1.24 shows a normal temp, 30C-34C. I suspect it is some Haswell bug. There are many benchmark programs which don't play well with Haswell too. I initially bought a Sabertooth Z87 and i7-4770K but returned them in favor of Ivy Bridge. Too hot, too much trouble. A HGaswell refresh in rumored to be in the works.