Quote Originally Posted by chew* View Post
I am busting my hump to get the manufactuers to get 1/1 ram ratios working on ddr III boards....that should help out most average guys as 400HT with 1/1 ram divider = 1600 ram
Just read this.

I'm not sure it's even possible to do it using the existing DDR2 memory dividers. Waaaaaay back when the first DDR3 boards were launched, I already asked some manufacturers to look into this, but most of them reported it's not as easy as just opening up the 'locked' dividers.

Check out page 185 of the BKDG of AMD's 10h. In short, the type of DDR memory detected determines what memory dividers are available. When DDR3 is used, the Ddr3Mode register is set to 1 thus enabling 400/533/667/800 dividers.

Do note that there are unused (reserved) divider registry keys available, but as far as I understand they are locked and not useable.