Assuming the nforce3 chipset has an AGP lock (i'm not really sure who to believe on this one), is it possible to build a system with components that can run way out of spec so that the cpu is the limiting factor? Right now, what are the limiting factors? The hard drive, and anything that uses PCI slots right? As long as those things were OK, you could in theory run your computer at a FSB of 250 or greater right?