I recently installed a new PSU a Corsair cx650 watt 80+ bronze and it's started making this really loud sound. I've been ignoring it for a week and it's gotten alot louder. Is there anything that can be causing this? Did I mabey plug the cords in the wrong place (if that's possible). Need help!! The sound is like someone but a card in between the bike wheels and it's making this brrrrrrrrr sound. Is it ok if I ignore it?