New UEFI BIOS updates for ASUS AMD motherboards W10 - A520, B550, X570 - 10 Boards - Includes AGESA V2 PI 1.2.0.1 NON-BETA and SAM/Resize Bar Support for Ryzen 3000 series CPUs. : r/Amd
Used - Like New: ASUS M5A99FX PRO R2.0 AM3+ AMD 990FX + SB950 SATA 6Gb/s USB 3.0 ATX AMD Motherboard with UEFI BIOS AMD Motherboards - Newegg.com
What Is UEFI, and How Is It Different from BIOS?
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GIGABYTE Releases its First Entry-Level Motherboard with Dual-UEFI BIOS | TechPowerUp