I have a question about adding 6mb memory. I had OCZ 1600 8-8-8-24 and got 6mb Corsair Dom 7-8-7-7-20 and was just going to run the Doms at the rated speed. Question is would running 12mb at a lower speed give me any benefits or should I just stick with the Corsair and sell the other OCZ sticks? Also I am running Win 7 64. Also not sure my MB below will run 12mb 1600 speeds.