Ok, first you need to have proper cooling, which it looks like you already have covered pretty well. Next, you have to up your FSB multiplier in the BIOS, slowly and steadily until you reach optimal settings and temps. You should be able to push it that far. just use your BIOS clock settings to do it, but you can also go onto the MOBO and alter the clock muliplier for voltage settings and FSB chipset.. AMDs overclock well, but be wary...