msi mpg x570 gaming pro carbon

Hey all, Im new here and sorry for my bad english. I have a problem with my new setup. -Ryzen 5900x -MSI MPG X570 Gaming Pro Carbon Wifi -RTX 3070 -Corsair Vengeance RGB Pro 2x 16Gb 3600MHz CL18 It only boots on 2666Mhz If i go on XMP OC-Mode it won't boot in auto, on both profiles. And...