OK.. First of all i don't really know how to overclock to much. I have GA-EG41MFT-US2H. The board supports ddr3 1066 or 1333(OC) but I'm running ddr3 at 1666. I'm guessing the board under clocks it automatically? I had 1333 ram before, but i swapped it because i was drunk :S Anyway i can't manage to overclock more then 8mhz, if i try to go higher then 2.74ghz it won't boot. Processor is q8400. FSB 1333 Bus speed 333 Mulitplier x8 or x6 x.xxA = FSB 266 MHZ x.xxB = FSB 333 MHZ x.xxC = FSB 200 MHZ I don't know what that is..
OCing is always a hit and miss someone with an identical setup might get 1GHz boost. while you only get 8MHz.