I was given a Dell C600 with a p3 750(ewww) that I'd like to swap the CPU for something faster, I'm pretty sure its a socket 478 so I'm hoping I can go like 1.5 - 2.0 gHz centrino which I've seen going for cheap on ebay. I know I should open it up first and get some numbers off the mobo, but I also know how much knowledge is stored in this forum and I have no place I can really leave it taken apart, so does anyone know what I can put in that baby? There are no mobo or chipset numbers in the bios, the only identifying info in the bios is version A22, Phoenix 1985-1988 and Dell 1990-2002.