Oh so that's where my PCIe lanes went...

So i spent considerable time trying to figure out why one of my eGPUs has degraded from x4 to x1 permanently. Yesterday while cleaning i found the culprit. Lesson learned: Don't buy eGPU risers that have HDMI connectors. I was going for Oculink connectors but the seller ripped us off. Before anyone asks: yes that's tinfoil separated by duct tape on the back of the pcb - it greatly helps EMI problems. If you can't see it: check the right HDMI connector. At least we have the means to replace the connector ourselves.