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What could cause a desktop power supply to "hiss"?

Fresh5 days ago
Mar 15, 202620826 views
Confidence Score0%
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Problem

Some background to my problem: My city had a thunderstorm last Monday and when I woke up, I noticed my desktop was turned off. I powered it on. It would stay on for about 20 seconds and then shut off. I figured it was overheating. I opened up the case and the plastic block that that HSF connects to…

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Fix for: What could cause a desktop power supply to "hiss"?

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Working many years in IT repairs I came across plenty of power supplies that did this - and only once in my whole life did one actually blow up and scare the living poo out of me! The hissing noise is damaged voltage regulator- caused by failing com…

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