ok just flip the 6 switch to on. the other ones should be off. once u do that, auto = 1:1, 1:1 = 3/4, and 4:3 = ??? u can confirm this using wcpuid. clik on that arrow to bring out the date/time and memory frequency pullout. it should state ur memory, so all u do is double that amount and thats teh ddr u are running. make sure ur memory can handle this speed.