When placing a Gen3 x8 configured PCIe board into a Gen4Gen5

dual slot graphics card pcie slot width The slot on a mainboard must support both an x1 PCI Express link and a USB link because the PCIe Mini Card can utilize PCI Express andor pcie 40 in 30 slot GTs = PCI-e gen 1, 5 GTs = PCI-e gen 2, 8 GTs = PCI-e gen 3, and the width is the number of lanes Share

pcie slot configuration gen1 gen2 gen3 Height: inches Length: inches Thickness: mil ±10% Note: Reserve two adjacent PCIe slots