Asus Crosshair IV Extreme
Overclocking - Max HTT
Overclocking with the Crosshair IV Extreme was a pleasant enough experience. The board executed overclocks with minimal fuss, but was also capable of recovering itself whenever an overclock was too much for it.
Our HTT overclocking spree hit a brick wall at 350MHz. While this is an impressive enough result it is not exactly ground breaking either. A Max HTT of 300-350MHz will allow you to overclock any Athlon II/Phenom II to its (air cooled) limits but this particular sample is far from the best when the cheaper MSI 870A Fuzion Power Edition achieved a tastey 400MHz max.
Overclocking - Max Overall
After some further tweaking, we were able to push our 1090T Black Edition to 4.38GHz bootable, please ignore the 700 HT speed as this just seemed to be a strange quirk with our version of CPUZ and the board the correct value is actually 2100MHz. This of course was not stable and once again fell short of the MSI with its max bootable frequency of 4.50GHz dead.
For benchmarking purposes, we reached an optimum clock frequency of 4.03GHz, with the parameters of 350MHz * 11.5x.
All in all, not a poor show from the Crosshair IV Extreme, although there is no denying that we expected much more. Regardless, let the testing begin.