You might have seen x16 to four NVMe slot cards online ... My friend has built a device with these wires, and the PCIe risers she had, were found to have PEWAKE and PERST, and the design ...

After manually setting the PCIe configuration to x16 Gen 5.0 in the BIOS ... This issue is especially apparent if you use a riser cable with these GPUs since you'll have to step down to PCIe ...