AMD unleashed its new Zen 3 architecture that powered the Ryzen 5000 series CPUs, and now they'll work on an ASRock B450 based motherboard.

ASRock has announced that it has new BIOS updates being pushed out to its AMD B450-based range of motherboards, which is a huge deal. You can buy the mid-range Ryzen 5 5600X processor with a cheaper B450 motherboard, and enjoy a super-powered but not super-overpriced gaming rig.
ASRock B450 boards + BIOS update version
- B450 Steel Legend: P3.70
- B450 Pro4: P4.50
- B450 Pro4 R2.0: P4.50
- Fatal1ty B450 Gaming K4: P4.50
- B450M Steel Legend: P3.60
- B450M Steel Legend (Pink Edition): P3.60P
- B450M Pro4: P4.60
- B450M Pro4 R2.0: P4.60
- B450M Pro4-F: P2.40
- B450M Pro4-F R2.0: P2.40
- B450M/ac: P2.30
- B450M/ac R2.0: P2.30
- B450M-HDV: P4.20
- B450M-HDV R4.0: P4.10
- Fatal1ty B450 Gaming-ITX/ac: P4.20