Actually, the IC7/G has a 255 fsb limitation @ 1:1! You can use a program like SoftFSB to accomplish higher, but that is more of a nusense (sp?) than anything...
With the right RAM and a quick 20 minute vdimm mod, you can run 285 1:1 at 3.05 volts with ease...
I know I said I was going to do...