FYI for in the future I always DL the Boards PDF Manual file and check the QML (Qualified Memory List). Before I purchase Ram. Even though I don't use it to make my final decision I use it to become more familiar with what is recommended and their voltages.
I'll then go to my favorite Overclockers forum and look up what others are using with that board and how it is working out for them.
This list contains Ram Modules that have been tested and qualified to run at the rated speeds and voltages for that particular board.
You can either download the user manual from here ASUSTeK Computer Inc.-Support-
Or I uploaded the zip file and scanned it with MSE (No viruses found) to RapidShare you'll find the QVL on Chapter 2 of the manual. http://***************/files/42956524...eme_manual.zip
My 2cents worth.