ASUS & Gigabyte Roll Out AMD Ryzen 5000 & Ryzen 7 5800X3D CPU Support For X370, B350 & A320 Motherboards
ASUS gets asked about BIOS updates for X370 to support Ryzen 5000 similar to ASRock, they reply by saying that there is no official support not even from ASRock, when presented with
Biostar News ::IPC Manufacturing, Industrial PC Motherboard Manufacturers - BIOSTAR
X570 and Ryzen Backwards Compatibility : r/Amd
AMD Appears To Be Preventing Ryzen 5000 CPU Support On X370 Motherboards | HotHardware
AMD Chipset Comparison: B550 Specs vs. X570, B450, X370, & Zen 3 Support (2020) | GamersNexus - Gaming PC Builds & Hardware Benchmarks
AMD ASUS PRIME X370-PRO AM4 Motherboard Combo w/ RYZEN 7 1700 3.0 - 3.7 GHz | eBay