I've just got a new E8500 E0, and I was wondering if there is a definitive guide to all the options in the BIOS I need to tweak for a good overclock?

My E8200 C0 will not do more than 3.6ghz no matter what I try, but I'm also conscious of the fact that I don't know what the majority of the settings in the BIOS actually do, haha!