PCIE support for X370-Pro model X370-Pro compatibility details and guidance
PCIE support for X370-Pro model X370-Pro compatibility details and guidance
It doesn't seem to be an issue—there’s ample bandwidth for 2.5GbE FDX. It might be another factor at play, but you’ve already progressed enough that it’s not critical. Have you updated the latest Intel drivers?
The i226 chip performs poorly when connected in an x1 setup at 2.0 speeds.