With respect I have a gigabyte 990fxa-d3 motherboard an fx-8150 and 16 giga memory of blue corsair vengeance 1866 mhz stock
My PC run with 1333 mhz memory I try everything on bios to run on 1866 mhz but without succes Please I need your help
you have to manually set the timings in the bios to the 'BY SPD' column in the DRAM settings, thats what I had to do to get my ram to run at 1600, it defaulted at 1333 too, I have the UD7, but i assume the bios is mostly the same