The big thing that comes into play with these 200MHz FSB Pentium4's when overclocking is the memory you're using. With the PCI and AGP divider you can simply lock them at 33MHz and 66MHz respectively with no substantial performance hit and overclock the FSB until your hearts content. With the memory that isn't necessarily so. With the memory the higher DDR bus you have your performance scales right along with it. With a bus that is default at 200MHz you need some memory that can carry the mail