asrock a320m ram fury kingston

I have this motherboard Asrock A320M HDV 3.0 . And I see it's compatible with 2666 mhz RAM for Summit Ridge procecssors. Theoreticaly, but practically my Ram doesn't work at all. I have AMD Ryzen 5 1600x on Summit Ridge. Obviously before buying new RAM I took a look and read carefuly but asd I...