I have overclocked my 3570k in BIOS (on Sabertooth Z77 MOBO) to about 4.2 GHz by enabling X.M.P. By "overclock" all I did is say that if it wanted to throttle up to 4.2GHz, it could, but it is not always at that frequency. My first question is, would it raise the idle temps by much if i had it OC'd at 4.2GHz constantly? Secondly, is it worth it to do this? I have liquid cooling so keeping temps down right now is no problem.