My mobo is MSI MS-7222 version 2. And I already have a Buffalo 512 mb 667 pc2-5300 ddr2 240 pin installed on my mobo. I was wondering what kind of ram will it makes it compatible to run along with this ram. I heard that the latency, speed and voltage have to match, is there more? Does this ram compatible? http://www.newegg.com/Product/Product.aspx?Item=N82E16820148240