How To Check PCIe Version of Slot and Motherboard

Note, the 9207's are PCI-E x4 cards The issue you are going to have is that desktop CPUs have a limit amount of PCI-E lanes to go around

How To Check PCIe Version of Slot and Motherboard moving from pcie x4 lanes to pcie would still be 4 lanes ) PCIe x4 slot and it is working absolutely fine It will run in PCIe

Note, the 9207's are PCI-E x4 cards The issue you are going to have is that desktop CPUs have a limit amount of PCI-E lanes to go around

pcie slot configuration gen1 gen2 gen3 1 x PCIe x16 slot Intel® Z790 Chipset 3 x PCIe x16 slots 1 x PCIe x1 slot so there is not a 2nd pcie slot at x8 Originally

If three slots are in use, the third is x4 From the Asrock specs page

pcie 30 in 40 slot QIP2X-PCIE8XG302 is SFF-8654 x4 to PCI Express x8 Gen 3 Switch-Based Cable Adapter Support two PCIe x4 ports, four PCIe x2 ports or four PCIe x1 ports

If any of the PCI Express slots could be considered a “sleeper”, it's probably the x4 slot The x4 slot is largely relegated to upgraded versions of x1