Resolved! 10GBase-T when installed in X670-g2 it is recommended that only half the port are used?
10GBASE-T SFP+ 10338 16.2.2.4-patch1 21.1.3.2 Populate every other SFP+ port in system, with a maximum of half the 10Gb SFP+ ports configured with 10GBASE-T transceivers. An adjacent SFP+ port should remain unused for every 10GBASE-T SFP+ installed...