Hello! I have a built tower with a 350 watt psu. Now every once in a while, it will buzz loudly and is very annoying. It will sometimes buzz at boot and sometimes not. Usually to get it to stop buzzing, I unplug the cord from the back and plug it back in and try it again.
Sometimes it does it, sometimes it doesn't! If it doesn't do it when it starts up, then it wont do it at all while its on, but if it starts up buzzing, it will stay that way, sometimes variying in pitch.
I think it may be the internal fan in the psu. Does anybody know what I should do? I'm thinking maybe some dust or something is wrapped around it. But I don't know why it would do it sometimes and other times not do it...