PCIE splitter help, terrible day!!

Suppose to be a great day. I finally got my final card for a fun build I have been doing. (4 aorus rtx 3060ti 4 aorus rtx 3080) hooked them all up to the risers power it up and the board (BTC-37 8 GPU) has no video output and nothing to the USB HDMI ports. It’s dead, tried everything. So now I have 320 hash of cards sitting with no working board. Now to the question. I got an extra aorus b550 elite board laying around(has 2 PCIE slots). Anyone ever try to run 2 – 4 way riser splitters on one board? I’m thinking I get 2 off amazon and have these up and running next day. Thoughts?