I have an old Dell dimension that only supports 2.4GHz, that's how much the cpu has, the Dell dimension has a socket 478 and that's what the processor supports. People always say there are no new processors that has socket 478 but I found a bunch. Am I wrong?
Just to clear this up, a socket 478 mobo won't work with newer LGA775 Chips (Pentium 4 5xx, 6xx, EE, Pentium D, Core based). They are physically a different chip. With prices so low it's hard to pass up a good deal on core2 based stuff.