Hi, since 1998 OC days, I've always suspected that traces lenghts affect voltage cleanness. I've got 2 mobo differ. revition, one has the ATX power connector in the middle of the VRM CPU zone, and the other one to the right of the dimm-slots. First one OC very good CPU, but is unstable even at stock with all-4-dimm filled at aggresive timming 2-2-2. The other one is very stable at 2-2-2 , but not so good at CPU OC. Could it be because of the shorter distance between ATX power and DIMM regulator zone?