ASUS today announced that the new BIOS with AMD AGESA 1.0.0.2 update for X570 and B550 series motherboards are now available for download. While the existing BIOS support Ryzen 3000XT processors, the new BIOS optimize the performance of the latest AMD Ryzen 3000XT series processors (Ryzen 9 3900XT, Ryzen 7 3800XT, and Ryzen 5 3600XT). The UEFI BIOS updates are available from the respective motherboard support pages, and can be accessed via the ASUS Support website .