webstudio5 years ago000Is it correct that the B450 mainboards are PCI Express 4.0 compatible after the bios update?Show in original language (German)ZwergZwack5 years ago • purchased this product000purchased this product Helpful answerThis does not apply to all B450s. I don't think PCIe 4.0 was enabled for this mainboard. PCIe 4.0 support was even explicitly removed with BIOS version 1816. Why not just a B550 board?Show in original language (German)Commentwebstudio5 years ago000Thanks. I have decided on an X570.Show in original language (German)Comment