The puzzling thing is, though, that it's not just when videos are actually playing - once it starts, persists even for as long as the browser is open even if I close the page which triggers it initially. And the ReNamer application I mentioned above appears to be very simple - very little memory use...

I tried hooking up 3 regular HDs, but to be honest it was difficult to tell whether the noise in question had improved over the background drive noise. It was definitely still present though. The thing that puzzles me is why the noise should only appear at certain times. E.g. why should flash conten...

Before buying any resistors, just try running Prime95 & listen. If the whining continues -- and it sounds like it will, one way or another -- then it might be time to invest in a new PSU. Thanks for that information, very useful. Running Prime95 seems to completely stop the noise while it's running...

Thanks to everyone for the suggestions on this. The noise is definitely coming from the PSU, not the SSD or the motherboard (the rolled-up newspaper confirmed this). I tried disabling C1E and AMD's Cool 'n Quiet, but neither made much difference. I also found something referring to Load-Line Calibra...

Thanks for the suggestion. I'll check that but I think it's something more electrical (It's not the loud noises on the sound recording). It's clearly connected with use - there's a distinct pulse of sound each time I move the mouse wheel a notch, for instance, or press keys on the keyboard.

Hi, my first post here. I'm looking for help with an intermittent noise that seems to be coming from the PSU (Nexus NX-5000), or maybe from nearby on the notherboard (hard to tell which since the CPU cooler gets in the way). I tried removing the graphics card, but the noise was still there so it can...