I have corsair xms3 4gb which has 1600 mhz and my mainboard supports(MSI 880GMS-E35) 1333mhz so its working at 1333mhz.My mainboard has 2 slots so I am going to buy 1 Kingston HyperX Savage 4GB 1600MHz DDR3.Can my mainboard run btoth of them at 1333mhz ?