I just bought a “Refurbished” UM8000 or CD-VM00 card for an SV8300. When I plug the card in to the chassis and power it on after it has been installed, the 2U chassis with the cards fails to start. The power light blinks and you can hear it attempting to turn on, but shuts off. It repeats this process over and over. It is like the system is failing a POST. When the card is removed the system starts as normal without issues. Sound like a bad card?