webstudio4 years ago000Is it correct that the B450 mainboards are PCI Express 4.0 compatible after the bios update?Show in original language (German)ZwergZwack4 years ago000 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)Commentwebstudio4 years ago000Thanks. I have decided on an X570.Show in original language (German)Comment