i have a p 4 2.53GHz processor that doesnt support hyperthreading.Can i swap it out with a 2.4GHz P 4 that does support HT.And will i have to upgrade my bios and download new drivers.Or will the change in speed be so minimal that it just is'nt worth it.ive tried overclocking the cpu with the ati tool but i cant get it to stay at the higher speed.