Is this an ok overclock for 6600k?

BrandonTheGPU

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Jun 13, 2016
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I am currently overclocking my friends PC in which he has a 6600k. I do not have much experience in overclocking hence why I am here asking for assistance :)

I have currently got it set to 4.2ghz at 1.23V is this ok? I tried to set it lower (1.123) volts but it would always go back up so instead I have set it to 1.23v the problem is is while stress testing it with prime 95 it says at 4.2 ghz but the Volts variate from 1.23 to 1.27 is this normal? and either way is this an ok voltage for the processors core speed?

I am new to overclocking so I apologise for my ignorance :)