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Buzzing/humming noise in my computer's power supply

I have a power supply (550w max output) that started humming/buzzing this week. It is not very old, I only bought it a few months ago when the first one went out. I leave my computer on all the time, so I'm not sure if maybe I'm not supposed to do that and I've overworked it, or if something is just going wrong in it. Yesterday, I took it out and cleaned it with that air-in-a-can for cleaning electronics and it stopped for a little while, but it's buzzing just as loudly again today. Sometimes it even starts to sound like it's going to go off, then it'll rev back up and buzz steadily again.

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Most power supplies come with a one year warranty. Contact the manufacture for a replacement.
Make sure the power supply is mounted snuggly & it's not vibrating.

Mike

Posted on May 06, 2008

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I wouldn't recommend leaving your PC on all the time but don't think this should have harmed your new power supply. The power supply may be faulty so try speaking to the store you bought it in to try another one. Alternatively, I would try moving your PC to a very well ventilated area at your desk to see if this helps.

Posted on May 06, 2008

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