The Athlon has a ABIt MOBO as support 400 MHc memory but I have only 200 MHz. I think if should I buy 2 512 MB DDR DIMM PC 3200 400 MHz memory it should speed up the computer. I think Corsair twin is a good memory but expansive. Kingston has twin matched memorys as is mych cheaper but got good recensations. The memorys I have now is different and cause interuptions if I try use "Turbo setting" to overclock it. What do you guy think?