Recently, an intermittent high-pitched noise has been coming from somewhere on my motherboard; I have to restart for it to go away. I've swapped power supplies, so I know it's not that. For some reason, it's almost guaranteed to happen while watching flash videos for a few hours. Also, whenever the ear-bleeding squeal starts, my onboard audio stops working. The frequency is too great for me to pinpoint with my earholes exactly where it's coming from though. Is a whole new motherboard the only/cheapest solution to this?
