This is a multi-GPU build. Works fine without this particular GPU. But when it is plugged, OS (Linux) crashes during boot. Linux logs indicate that the last actions before the crash pertain to the pci slot that is occupied by this GPU being addressed.
The light that you see in the picture below is off when the PC is on. But if you turn the PC off the light turns on.
I've tried different slots. I've tried different power-supply cables. I've tried removing some of the other GPUs. Nothing helps.
Any idea what this means? Can something be done short of returning it?
It's not the PSU, I'm sure.