After reading the memory sticky. I have 4 memory slots. I know i can put my 2x512mb xms2 pair in one channel and then place a 2x1gb xms2 pair in another channel. My question is this.... should i put the 1GB sticks in the 1 and 3 slots and the 512mb sticks in the 2 and 4 slots or vise versa ? Or does this matter at all ?