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Noisy PC, ringing/screeching sound

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#1 Caffeinated.Doot


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Posted 21 May 2013 - 06:17 PM

Recently I've had a PC start to make an unbearably loud ringing, squealing, or screeching type sound. It is NOT a beep code; I know the difference. It's an annoying high pitched squeal, here's a video I found where a PC makes a similar sound, it's like this but much louder: http://youtu.be/Tn6i4-Atg5k


It started when I noticed a loud rattling/clicking type sound coming from the PC so I opened it up, cleaned it out, and tightened up all the screws in case something was slightly loose. I suspect it may be the PSU; initial noise was coming from the back of the PC. Anyway that did resolve the rattling/clicking noise but that's when the squealing noise started. Is there a way to fix it or do I need to replace something?

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#2 caperdog


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Posted 21 May 2013 - 07:05 PM

sounds like a fan. Open the case and listen carefully to pinpoint the noise. Do not stick your ear or your finger in or on a spinning fan.

replace offending fan.

There is also a fan in the power supply that you should be able to hear from the back of the PC. If it is coming from there I would consider replacing the entire power supply.

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