Hello guy, i have some problem here.. I just bought Hyperx 1866 4x2.. But the system only detect slower speed 1333 instead of 1866..

I check again manual on my mobo F2A85V Pro and A8-5600K but both support up to 1866..

I try to overclock in bios but only manage to get 1600 only.. Manyak rugi lorr..

Anyone can help?