Sorry for this newb memory question, but i plan on building a system with the Asus A7N8X mobo and 2 sticks of 512MB OCZ EL memory. My question is that the nForce2 chipset can handle DDR-400. Is DDR-400 PC-3200 or PC-3500? And which one should i use, PC-3200 or PC-3500? Will the nForce2 accept both of these?