AMD Zen 3 CPUs will only be compatible with 500-series motherboards | PC Gamer
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AMD Ryzen 5000 Zen 3 BIOS Support Added To These ASUS, Gigabyte, And MSI 500-Series Motherboards | HotHardware
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Amazon.com: Micro Center AMD Ryzen 9 5950X 16-Core 32-Thread AM4 Unlocked Desktop Processor with ASUS ROG Strix X570-E Gaming WiFi II ATX Gaming Motherboard : Electronics
ASUS - The latest BIOS updates ready the ASUS 400 & 500-series lineup, and even a stack of 300-series motherboards to get the best performance from upcoming AMD Ryzen 4000 & 5000
Release AMD Ryzen™ 5000 Series Processors' Potential with GIGABYTE's Latest BIOS for the AMD 500 Series Motherboards | News - GIGABYTE Global
Best B550 Motherboards: AMD's More Affordable PCIe 4.0 Option | Tom's Hardware
AMD axes Zen 3 support on 400-series motherboards: Is AMD pulling an Intel? | TechSpot
BIOSTAR's Entire AMD Ryzen Motherboard Lineup Ready For Windows 11 Support, Intel Support Limited To 500-Series
TUF GAMING B550-PLUS|Motherboards|ASUS USA
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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
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ASRock Confirms 400/500-Series Motherboard Support for AMD's Upcoming CPUs | eTeknix