DDR3 Dual channel mem only running single channel

[col_sanders]

I have a (2x2GB) set of Gskill DDR3 1600mhz ram that used to run dual channel in my old motherboard but now it only runs in single channel mode on my new crosshair iii.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231193
thats my memory

http://i47.tinypic.com/5dmhjp.png

[col_sanders]

nvm, I've fixed it.
The manual was mistyped and said to put the memory in banks a1/b1 for dual channel mode. I now put them in a1 and a2 and it works in dual channel mode.