i7960

Hello,i have Asus x58 Rampage Extreme III motherboard and 4gb of ram installed. I want to upgrade this system but dont know what ram modules to choose because its old beast mobo. I found some corsair TR3X6G1600C9 v2.1 1.65v 2x3GB (6GB)1600mhz kit and in the motherboard manual i can find this...