Problem after installing CPU cooler

[jmf2525]

I was running an i5-3570K at 4.4 ghz w/ stock cooler and had cpu temps over 90C under stress. So I installed a Hyper 212 EVO. Running much cooler now but following install I cannot raise the CPU Ratio above 40. Seems to be a hard limit within the bios.

I updated the bios. Reset CMOS. Not sure what else to try. I'm new to OCing so I assume I'm overlooking something obvious. Any suggestions?


Specs
Gigabyte GA-Z77x-UD3H
i5-3570K | Hyper 212 EVO
Gigabyte GTX 660
G Skill 8 GB DDR3
Corsair TX 750W

 

[monkeydelmagico]

You oc'ing in the bios or with a windows based utility?

 

[jmf2525]

Bios. I have the Intel XTU installed but have not used it for oc'ing. I had EasyTune6 installed and used it to oc at the middle setting, but uninstalled it before resetting the cmos. Since my original post I reset the cpu ratio to 34 and oc'd using the turbo ratios. The max I can set each is 42, 42, 41, 40.