i just got this brand new power supply. at first when i got it. it worked fine. didn't make any wierd noises or anything. after about a week it started making this fucking annoying screeching sound. it makes this sound whenever i open a program or a game or browse the web or anything. it's fucking wierd. it also makes the sound when i move the mouse wheel up or down. it's fucking wierd as fuck lol. why is it making this sound?