I just bought used 13-slot Magma chcassis and put my 3 UAD-1 inside. My comp recognised it and all seems to work fine. The problem: chassis with one UAD-1 works perfectly silent, but when I add second UAD-1 and third one- there is an ultra high pitched sound coming out of Magma. When I power down my comp - noise disappears. I put a Chieftec PSU 350W in Magma and no fans yet. Anybody can help?