ASUS Announces UEFI BIOS Support & AGESA 1.2.0.6b for AMD Ryzen 7 5800X3D & new AMD Ryzen 5000, 4000 Series CPUs for ASUS AM4 X570, B550, X470, B450, X370, B350, A520, and
ASUS agrees to support A520 up to Ryzen 4000 CPUs, but questions B450 and X470