https://wccftech.com/amd-motherboards-with-ryzen-5000-series-support-roundup-upgrade-to-500-series-bios-with-agesa-1-1-0-0-for-the-best-experience/

Our colleagues over at Computerbase.de have compiled a ton of information regarding motherboard support of AMD's upcoming Ryzen 5000 series processors. The BIOS with the AGESA update required to POST with Ryzen 5000 series (AGESA 1.1.8.0) has been out for quite some time but the polished version with full support has also finally landed for 500 series motherboards. Users with 400 series motherboards will have to wait till January 2021 to get the first beta releases.

he AMD Ryzen 5000 series features a 19% PC improvement and up to 16 cores. The flagship can boost up to 4.9 GHz and the company is claiming the fastest gaming processor crown that Intel was hoarding up till now. Interestingly, even 400 series chipsets will be getting the update to move to Zen 3 but this will not happen till January 2021 - likely in an effort to convince customers to move to newer chipsets first. Without any further ado, here are the bios links: