link training error messages - Hardware

PCIe link training error on Dell R740 server - Xilinx Support pcie training error slot 1 Cause One of the following components may have failed: The internal RAID controller; The slot on the motherboard that the RAID controller uses pcie gen 4 in gen 3 slot why are we limiting to m2 slot instead of pcie slot? and that gave me a wild idea: an m2 extension cable that hooks into a new square form

pcie slot sizes After telling the server to reboot, it is now displaying an “PCle training error: Internal Storage Slot” Then the next line was “System Halted!”