What do I have to oc in the bios so the Ram will run at 3000mhz? Since the ram runs at 3000 by default, the mb supports 3000 but the cpu supports only 2666 the ram will be limited by the cpu to 2666, so I know I have to oc something to make it run 3000mhz. What exactly do I have to do in the bios? Do i only have to turn on that XMP option and that's it?