It sounds like you need to do some reading on the subject of overclocking. Google it my friend. There are countless websites - some better than others - devoted to the dark arts. It isn't that difficult to do if you know what you're doing but you clearly don't know what you're doing and as such you're going to end up ruining your gear.

I'm not going to ask you why you want to toverclock your machine - who cares? Don't you hate people who answer questions with questions? But like anything, it takes a little time and effort. Sorry man but you're going to have to do some reading. If you're not willing to put in the time then don't mess with it - you will ruin your gear.