RX Vega not being detected

Hello, and I have recently purchased the RX Vega 64. When I plugged it in though I noticed that it was not showing up in my devices, although the RADEON light was on. I then noticed that where you plug the power cables into that one of the lights were lit red. I then assumed it was an issue with the power cord on those 2 pins so I made sure nothing was stuck and changed the cables around, which changed nothing. Now I am not really sure what to do, support would be much appreciated.