Understanding PCIe Configuration for Maximum Performance

Try changing the bios settings for the slot you are using from what ever it is to GEN1

The IO configuration of the UP Element i12 EDGE is tailored 3052 PCIe B-key x 1 2280 SATAPCIe x2 M-key x 1

pcie 4 in pcie 3 slot ssd Gen 1 is older PCIe Gen 2 is PCIe and Gen 3 is the new I have my 570 cards in Slots 2 & 4 so I can utilize PLX switching the most

pcie slot length Released in 2007, Gen 2 doubled the data transfer rate to 5 GTs per lane, effectively providing 80 Gbps of total bandwidth for a PCIe x16 slot 3 PCIe Gen 3