AcMoneyYT

Hey, I have recently built a system with the asrock b450 m steel legend , ryzen 7 2700x and corsair vengance rgb pro 3000mhz ram, I had recently realized that my ram speed is running at 2133 mhz when i go to overclock it and turn on xmp ect it just reboots my pc twice and after it go back to default setting has anyone got any ways to fix this much appreciated for any help