Well, I think I got a bit carried away and veered from what you wanted to know, but in doing some research I dug up these three articles. They're quite informative, even if it wasn't exactly what you're looking for..

http://www.xbitlabs.com/articles/mem.../ddr2-ddr.html

http://www.overclockercafe.com/Artic...DDR2/index.htm

http://www.digit-life.com/articles2/...-rmma-1ch.html

Sorry if it isn't what you're looking for, just felt this might help