I just bought a new thermal take 600W PSU. I installed it and plugged it in. At first I was hesitant because it comes with a 115/230 switch but I just took a leap of faith and went with default 115v setting. Anyways, I turned it on and immediately my power light Indicator on case went out. What happened? The system loaded and seems to work fine. I had turned it off and when I hit the button it flashed again and turned off . Should I be concerned?