Just saw this @ TheInquirer!

WHAT'S THE DIFFERENCE between a Pentium 4 Northwood that sits happily in a 533MHz chipset motherboard and a Pentium 4 Northwood that sits happily in a 400MHz chipset motherboard?

That's the question we asked Intel yesterday and the answer is "not a lot", but enough to entangle you in a nightmare if you buy the wrong sort of processor by accident. For more info warp 2 TheInquirer.net