I have a Dell SC600 system, which does not allow overclocking. I also have a 2.0 Celeron, which runs 3.0 ghz (150 mhz FSB) comfortably at default voltage (on a different motherboard, of course). I have seen hints that the a P4 cpu can be modded in order to make the motherboard think it should be run at 133 (533) mhz FSB, instead of 100 (400) mhz FSB. However, I have been unable to find any information on the actual mod. Can anyone help me out with this?