I just installed my i5-3570 with 212 hyper evo on my p8z77-v lk. I am trying to overclock, but its weird. My mobo wont accept my ddr3 1600 and sets the max bandwith to 667 isntead of 800, makes the bclk 103 and even if the voltage i set is 1.3V, it puts it to 1.415V (which is a bit too much). Currently i have overclocked it to x45 for 4.5 ghz on a max temp of 50C and v core of 1.4-1.415V
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It should be lower that voltage, 1.365v or less is more likely.