http://www.youtube.com/watch?v=_fB8DzjBtz8 it sounds like that. but not as loud but still headache inducing. the psu is a cooler master 600w silent pro. i have had it for a year almost and it has been doing this sound for about a week now. i cleaned it out a few days before it started making this sound. i was looking to replace my video card for doing another noise that was also very annoying but i might just replace this psu instead. if i have to any recomdenations for a new psu? i want to keep it under 120 dollars.