XCC Event log shows PCIe link width and speed has degraded for

Optimal PCIe Bifurcation Configuration

PCIe expansion slot definitions ; 1 · PCIe , FL, FH · x16, 16, 8, 4, 1 ; 2, PCIe , HL, HH · x8, 8, 4, 1

pcie x16 expansion slot PCI is the bus interface standard for expansion cards Data is transmitted in parallel on a 32-bit or 64-bit data bus width

pcie cem slot pcie version 1,2,3 each slot thru hardware cfg5,cfg6 it don't width or bifurcation in MSI Z97 Gaming 7 davidm71 March 13, 2019, 8