Поясните по параметрам Gen1, Gen2, Gen3

PCIE reference clock is 100MHz regardless of x1 or x2 lanes I am not familiar with DM8168 and not sure how the reference clock is configured I tested a

Advanced PCH Configuration PCI Express Configuration PCIe Speed: Auto Gen1 Gen2and no Gen3 entry

pciex16 slot configuration PCIe Gen4 slot of the Power E950 server Therefore, a two processor module Power E950 configuration Gen3 IO drawer configurations for the Power E950

pcie 4 nvme in pcie 3 slot A PCIe 4 is backwards compatible with Gen 1, Gen 2, and Gen 3 while Gen 1, 2, or 3 can slot into a Gen 4 And with the release of PCIe Gen 5