Ok so i have a 2666mhz ram and it is running at 2133mhz so i wanted my ram to run at 2400mhz(bcuz thats the max bus speed my mobo support) but i cant cuztomize the ram frequency in the bios, the only thing i can change in the bios is xmp profile 1(2666mhz). How do i underclock or cuztomize my ram to 2400mhz?