I need some help understanding exactly how Intel (maybe others) figure out the memory speed. I have 2 options effecting the memory speed (mhz). They are... Memory speed: 400 533 667 800 Reference frequency: 133 200 266 333 What does all this mean? Can it be translated into ratios? For example would memory speed 400 and reference frequency 200 mean 1:2? Is it as simple as dividing Memory speed by Reference frequency to get the ratio? 400/200=2 or 1:2? Would 800/333= 1:2.4? Sounds wrong that way. I just need to know what my ram will run at with each combination. It's alot easier when I can just flat out choose a ratio. Can someone spell it all out for me? Thanks.