AI-64 makes noise when using multi inference

Hi,

I have a weird anomaly with the board that I have that is a bit strange. When running the multi input and multi inference demo the board make a clicking sound and the screen tears, the sound and the screen tearing are in sync. Is there a fault with the board or software error. I am running the web demo image version. I have put a fan on the board and that didn’t help. Any help with be appreciated thanks.