Asrock z77 extreme4 Overclock

Hi guys, anyone got stable overclock settings for an i5 2500k on the asrock z77 extreme 4? Looking for 4Ghz and up. Bit of a noob who isnt daring enough to take the plunge using the myriad guides available. 



Not on a ASRock Z77. I have an MSI P67A-G45. I have 4.5GHz stable (100x45) with 1.325v. I get around 68c under Prime 95 with a Xigmatek Dark Knight


Awesome. I just got to 4.4GHz with one of the presets. Gonna go back and customize and go higher later in the week :) thanks!