I have a i5-7600k, after a few months with it, it just cant handle all the games I play, most triple a games run it at 100%, so of course I decided I have to overclock to 2.3 ghz, I want to start out slow with overclocking using Intel(R) Extreme Tuning Utility, how do I go about doing this? Or is the i5-7600k already running at 4.2 ghz?