The are a couple different ways you can overclock your system. First is the easiest and you can do it within Windows. Open the ASRock Extreme Tuning Utility and click on the Overclocking tab, here you can adjust the settings to overclock your system.
If you are a more seasoned overclocker you can go into the BIOS to do your overclocking. A pleasant surprised when I went into the BIOS was the CPU EZ OC Settings. For our processor, which is an i7-3930K there were 7 settings: 4.0GHz, 4.2GHz, 4.4GHz, 4.6GHz, 4.8GHz, 5.0GHz and 5.2GHz. I went through each one and to my surprise the system booted each time! At both 5.0GHz and 5.2GHz the system would bluescreen at the Windows loading screen, but I was able to get the system to load into Windows at 4.8GHz. I ran the stability tests and things were stable!
Also in the BIOS you can easily change the settings yourself to do your own overclock, which I’m sure most of you are used to doing. I would have liked to see the EZ Overclocking Settings in the AXTU software as well, that would make it very easy for first time overclockers.
4.8GHz is a great overclock, a 50% overclock actually! Taking our i7-3930K from 3.2GHz all the way up to 4.8GHz!