I have a pair of CORSAIR XMS3 DHX 1600 4GB and it only goes up to 800mhz in my bios. I currently have a ASUS M4A785TD-V EVO MB.
ASUS M4A785TD-V EVO
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131398
CORSAIR XMS3 DHX 1600
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145200
ASUS M4A785TD-V EVO
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131398
CORSAIR XMS3 DHX 1600
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145200