Asus doubles down on X470 and B450 motherboards supporting Zen 3 | PC Gamer
AMD Backtracks, Announces Zen 3 Ryzen 4000 CPU Support For X470 And B450 Motherboards | HotHardware
AMD Zen 3, Ryzen 4000-series CPUs will work on B450, X470 motherboards - ThinkComputers.org
MSI confirms AMD Zen 3 support for its B450 and X470 motherboards - NotebookCheck.net News
AMD Ryzen 5000 Zen 3 support is rolling out for ASUS, ASRock, Biostar, Gigabyte and MSI 500 series motherboards; no B450 or X470 support until January 2021 at the earliest - NotebookCheck.net News
MSI X470 / B450 Zen 3 Vermeer - 2020 - FALL/WINTER AGESA BIOS UPDATES - New AGESA Releases and performance tracking thread | MSI Global English Forum
AMD to Support Zen 3 and Ryzen 4000 CPUs on B450 and X470 Motherboards