well we need to know what ram you have, and what cooling you're using.

what you essentially do is you press delete when the PC starts, putting you in the bios. next you go to the chipset settings (i think). here you change the front-side bus and the multiplier, along with various volt settings.

you should try googling for overclocking guides, because you should really know what you're doing before you actually do it

good luck

__________________