I forgot what the term is called, but it's when you have two of the same RAM and they work together. Well, I bought 512mb of DDR400 Corsair XMS Memory with Platinum Heatspreads today. My 256mb of ram right now, is DDR400 3200 256mb Apacer ram, I just wanted to know if the motherboard automatically does the Dual Syncing or whatever you call it, and if it will interfere with my other ram?