You just start bumping your bus speed up little by little. After you get to around 215mhz you might have to set your Hypertransport back to X4 and bump your memory back, you dont say what speed memory your running but if it DDR2 800 set it back to 667 and so on. It overclocks your Hypertransport and memory when you raise the bus speed. When it gets unstable you can back off the mhz some or you can bump your CPU voltage up but keep a eye on your CPU temps.