thats not entirely true, maybe in amd boards but not P4 boards. yes 1:1 is optimum, but running it async in a p4 bord is definitely worth it if you want higher bandwitdh. personally since I dont have a dual channel board I dont know if it has 3:4 or 4:5, but if it does then the memory will be able to run at speeds you want, the only real benefit will be dual channel. I too am debating this since I have a it7max2v2 also. but unless I have a 200 fsb p4 to go with it, to me its not worth it. but I would also have to buy another stick of memory, If I was in yor shoes with 2 sticks I dont know what I would do, I would probably buy a is-7, lol