idiotec said:Primarily because DDR2 speeds are faster than Intels FSB. On current 965 boards, there are actually NO options below 1:1. That means that the lowest you can run the RAM is equal to the FSB, however, you can run the RAM faster than the FSB.
Are you sure about this? I thought it was the other way around. For instance, 5:4 would mean that the RAM runs at 80% the FSB, 3:2 would have RAM running at 67% the FSB, etc.