Z6 G4 Pcie link down error on slot 0

error slotThe PCIe slot possibly has 03POR3 Raid controller which seems to be causing the issue. Looking for guidance on possible solutions for the issue or debugUEFI0067: 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 as