PSU toroids or caps?
I've got a brand new Antec EarthWatts 500W power supply, and ever since I got it, it makes this horrid high-pitched squealing noise (up in the VERY high frequency range, it's like a dog whistle).
I'm pretty positive it's a vibrating toroid, but I want to be sure it's not a bad capacitor (they get hot, and the inside boils, thus creating the squealing noise).
Is there any way of opening the power supply so that Antec cannot tell I had it open, other than the "WARRANTY VOID IF REMOVED" sticker? If it's a vibrating toroid, all I have to do is stop the vibrating, probably with hot glue. But if it's a bad capacitor, I want to send it away for RMA.
Also, how should I discharge the PSU, and how long should I wait before opening it up?