Check that data can be sent and received from the port
Check PCIe error rates and transmission speed (16Gbits/sec per lane, up to 7000MBps when using x4 edge) in Windows
Benchmark your PC's PCIe slots
Check if your PCIe slots are Gen4 16Gb/s Gen3 8Gb/s or 5Gb/s or 2.5Gb/s
Fits into x4 PCIe slot. An adapter is required for x1 (not included).