Overclocking new Intel i7 960 @ 4GHz

[Oye!]

Hello friends, I was thinking to overclock my Intel i7 960 and also it is been my first time that I am doing overclocking. Well I have gone through method for doing overclocking but it is something which I am not at all clear about it. Well I am having Intel i7 960 @ 4GHz but I am not at sure that voltages are stable or not and also I have not run Pcmark or any stress tests till now. Well I was thinking that if someone or other is having idea about how far I can go or voltage which is sufficient or not, please help me out with it. Thank you.

[Aileya]

Let me tell you that if you are going with sheer bench scores then it is been constancy at 4 which is useless and also as long as you be able to boot/post support which will be all good running prime95 or IBT etc will tell you if you're stable or not