I can't seem to OC my memory even 1 mhz, and if i try the computer just wont boot. I have Corsair twin2x2048-6400 memory and a ds3 mobo. right now i have 4-4-4-12 timings at 800mhz stable and +.3v, but i try to go over 400 mhz fsb and the computer just wont boot. I loosened the timings to 5-5-5-15, and upped the mem voltage to +.5 and I still can't get over 400 mhz fsb. It seems as if the memory just wont work over its stock 800 mhz. any ideas on what i can do? I have the F9 bios for the ds3 as well.