https://wccftech.com/amd-ryzen-3000-xt-desktop-cpu-am4-motherboard-bios-support/

With the release of AMD's Ryzen 3000 XT 'Matisse Refresh' Desktop CPUs yesterday, board makers have added BIOS support for the said processors for their entire AM4 motherboard portfolio. AIBs such as MSI, Gigabyte, and Biostar have all released BIOS to support the said CPUs which can be downloaded from the respective motherboards support page.

Each respective motherboard maker has added BIOS support for the Matisse Refresh Desktop CPU lineup from AMD which was introduced yesterday. The BIOS has been released for all AM4 boards which include the recently released B550 series and the existing 500/400/300 series boards. Those of you who are planning to buy or upgrade to a Ryzen 3000 XT CPU should definitely be upgrading their motherboards with the new BIOS.