Hi, i have a problem; i have bought 4 module of RAM ( 2 Gb Geil DDR3 1600 Mhz CL8 Value Plus). But i have a incompatible Motherboard ( Asrock P45R2000-Wifi). My motherboard supports DDR3 1333, but doesn't support DDR3 1600. Then i need to underclock my RAM to 1333 Mhz by SPD. I attach my SDP, what i need to edit? Thanks.