I have been building computers for years and never found a reason for the placement of the memory slots on a motherboard. If you look at a board that uses an Intel CPU, the slots used are1-3 and/or 2-4. If you look at a board that uses an AMD CPU however, the slots used are 1-2 and/or 3-4. Does anybody know why this is? No, I'm not trying to make a better motherboard, I'm just curious enough to finally ask. Thanks for any info anyone can give.