I have DDr800 mem running at 667. My FSB is at 240. That's my max. I gave an extra .1v to mem and cpu for overclocking. I can not go past 240. the shitty thing is my MB maxes out at 265 fsb too. updated to latest bios. anyone know what i am doing wrong> i have a scyth ninja cooler. my temps are in the 35's. Does my mother board just blow?