So I've always had 4 memory modules, but I recently switched to 2 x 2GB. I have an Asus P5B Deluxe and I put the memory in the first yellow/black slot. Thus i am only running single channel. I'd like to move one over to the other yellow to run dual mode, but will I have to reformat to do that? Question is can i move the modules around and not lose anything? thanks