I built my PC a couple of months ago and it has been awesome, no issues so far. Something I noticed though from first boot up and really until now that I was not really concerned about is a click noise when I power down my PC. I assumed it was just the power supply switching off but just wanted to make sure. I shut down my PC, fans stop spinning, all LED'S turn off, and probably half a second later there's a click from the PSU. I have the Corsair Vengeance 750M Silver.