PC Problem...

[Animeniax]

Yeah. I have tried a few times to locate the source by simply opening the case and even pressing some parts of the system to see if it would reduce the noise, if it's from vibration and resonance, but not with much luck. It's incredibly hard to pinpoint the source. It's kind of annoying since it just starts suddenly one day, perhaps lasts until I turn off the computer, then next day the PC might be okay once again. A week may go by without the rattling, but then it's suddenly back, sometimes for days. The noise has been gone for a month once or twice.

I was hoping having the PSU outside of the case would allow me to know for sure. But like you said, if it's resonance related after all, then I'm naturally out of luck.

Sorry sometimes it's the simple things that people forget to check, like with my videocard causing BSODs (I say it's simple because in retrospect, it's a hacked card with BIOS flash and utility to get it to run correctly, which can cause instability). Have you tried using compressed air to blow the PSU out? Also since you probably won't get warranty support, consider opening the PSU and replacing the fan.

In addition to what ds said, if you have issues installing windbg, check http://support.microsoft.com/kb/2717426 which you think wouldn't apply if you are only installing the debug tools, but somehow it does.