Does the asus board support your ram? If not, look up the timings or use cpu-z to see what they are running at. The listing is for half the actual speed, so 1333 is listed as 667. You may have to set the timings manually, or adjust the voltage slightly. The maximum voltage for most ddr3 is 1.65 volts. Also check your motherboard bios settings, and be sure "memory mapping" is enabled.