Biostar also defies AMD and adds PCIe 4.0 support for 400-series motherboards

Posted on Friday, July 19 2019 @ 22:36 CEST by Thomas De Maesschalck
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ASUS isn't the only motherboard maker with PCI Express 4.0 for its 400-series motherboards. AMD's stand on this is that they don't want 300/400-series motherboards with PCI Express 4.0 support and that they will ensure that future AGESA microcode updates block this. This means that if you want PCIe 4.0 to stay enabled, you will be locked out from future updates that may fix bugs, enhance performance, or fix CPU security vulnerabilities.

However, some 400-series motherboards have what it takes to deliver PCI Express 4.0 support and now Biostar is the second motherboard maker to defy AMD by pushing out BIOS versions that enable PCI Express 4.0 on some of its 400-series motherboards:
The updated BIOS lets you use PCI-Express gen 4.0 graphics cards on the topmost PCI-Express x16 slot, and the M.2 NVMe slot that's directly wired to the AM4 SoC. The expansion slots that are wired to the chipset are still restricted to PCIe gen 2.0. You will need a 3rd generation Ryzen "Matisse" processor for PCI-Express gen 4.0.
The BIOS with PCI Express 4.0 support is available for the AB45C-M4S (B450MH), the AB35G-M4S (B45M2), the AX47A-A4T (X470GT8), and the AX47A-I4S (X470GTN).

Via: TPU


About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.



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