msi z68 gd80 nueva y 4X4GB Kingston Hyperx Genesis $600
http://www.msi.com/product/mb/Z68AGD80_B3.html#hero-overview
http://www.kingston.com/us/hyperx/memory/genesis
http://www.msi.com/product/mb/Z68AGD80_B3.html#hero-overview
http://www.kingston.com/us/hyperx/memory/genesis