i have a home built pc. i put it together myself and now i am not satisfied. i have a 433 pentium 3, but i had to get an adaptor to make the processor fit into my motherboard. im pretty sure that the motherboard was only set up for a pentium 2, but i dont know off hand what it is. i know that i had to update the bios. i was wonderin what it would take for you all to tell me if i can upgrade to atleast a low end pentium 4.