ive building a new computer and i have a gigabyte ga8ik110 mb and a pentium 4 2.8 ghz 800mhz fsb 512k cache so far. i would like to buy some performance ram to pair with this that is good for overclocking and will run stable. also related question. why do they sell ram over ddr 400 like ddr 433 or 466 or 500 if ive never seen any motherboards that say they support anything over ddr 400.