My bus speed is 400 mhz, rated FSB is 1600 mhz. My multipier is 8x and core speed is 3200mhz.
I have that mobo, its a beast.
edit: I think I have a different one than mentioned, however, they may be similar...
I figured it'd have OC limitations like that, it's happened with other onboard video solutions as well.In order to protect the operation of the X3000 graphics engine, Intel instituted a hardware lock in the chipset that turns off asynchronos memory timings. This means the boards are not going to be overclocking any where near their P965 counterparts. Gigabyte sent me another bios that is suppose to maximize overclocking but on average depending on the quality of your chipset, memory, and CPU utilized (affects the memory controller strap) they told us not to expect to much above 350FSB