Got a question for more experience OC'ers. I really want to know the in's and outs of the bios.

What exactly does C1E, and CPU C3 report etc.. do? When I disable them, my clock stays the same and is not downclocked. Even with speestep enabled. I was wondering what each of their functions was and if it's save to leave all the CPu CX reports and C1E turned off permanently?