I'm kind of stumped. I save the frequency settings for all cores- it sticks. I have turbo mode/eist/c-states etc turns off completely for the time being so I could test.. but its not overclocking. I tried turning on turbo mode and it boosts up to 4.5ghz when its under any stress so I was able to run stress tests, but the second I turn it off nothing works. I'm using an Asus Z170-A board with an i5 6600K. Sorry if I posted this in the wrong area.