Dont ask for oc suggestion, every cpu is different, experiment as long as you do not exceed the maximum safe voltage, apply a voltage, apply a multiplier and test to see if it is stable, if it is then go for a step up in multiplier, if not increase a step teh voltage and test again. Every cpu is different on some you get 5 ghz on 1.27v on some you get 4.4 at 1.3v, i can only say this, experiment.