Recognizing PCIe Oculink Adaptor Card

Hardware ZimaBoard
5

So I connected it all up and nvidia-smi reported no devices found.

So I installed the drivers as described in Tutorial: How to use RTX 50XX Series GPU on ZimaOS？ .

Now I get brief yellow and then green led activity and then nothing. My ZimaBoard2 does not now boot.

Any help greatly received.