[reggie_da_man]

Say i have an old p3 and i wanna upgrade to a basic pentium 4, would i have to reformat the harddrive after ive installed all the new hardware or would it be ok, becuase ive heard that it usually works but it pretty buggy.

[macdude425]

The hardware differences would have to be minute for it to not screw up. I would format and reinstall, just to be safe.

[timmer]

yea just reformat to make sure u get optimum performance

[reggie_da_man]

but lets say that some1 wants to keep the harddrive the way it is, is that still possible?

[macdude425]

Well, I suppose you could use it as an extra HD, but you couldn't boot off it or anything like that, just get files off it.

[Trotter]

Try it before you do anything drastic... just in case it works.

But, if you're going to change mobos (do they have p3 mobos that take a p4?), you'll have to reformat and reinstall, or use it as a data disk and put in a different master.