Slot swap failing with error: slot did not respond to http ping

error slotUEFI0067: a PCIe link Training failure is observed in PCie Chassis Slot 4 and the link is disabled. Dell server model is FC 630. Tried the recommended options such asReplace the affected adapters. Replace the riser card. (Trained service technicians only) Replace the system board. One of PCI Errors :.