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Channel: How can I diagnose a faulty power supply? - Super User
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Answer by quack quixote for How can I diagnose a faulty power supply?

Here's a great flowchart on diagnosing power supply problems. The guy's selling a book full of similar hardware troubleshooting flowcharts with solid discussion of what's going on. There are several...

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Answer by Ernie Dunbar for How can I diagnose a faulty power supply?

I don't think you're asking the right question. The right question would be "What could cause my Heisenburg-esque BSOD?"The answer is usually RAM, although a faulty CPU might also do it.Sometimes, it's...

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Answer by Satanicpuppy for How can I diagnose a faulty power supply?

Wow, interesting question.The problem with diagnosing a power supply problem (when it's not hilariously obvious), is that the problem will often only show up under load, so even if you pull it out and...

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Answer by OldTroll for How can I diagnose a faulty power supply?

Assuming it's at least somewhat new (90's or newer) you can buy a tester Newegg has a good selection

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Answer by Zoredache for How can I diagnose a faulty power supply?

Fastest way? Replace the power supply and see if it become stable.

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Answer by ktower for How can I diagnose a faulty power supply?

Honestly, the easiest method might be to swap with a known good power supply. Failing that, you can also get power supply testers that will test various aspects of the power supply, such as verifying...

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How can I diagnose a faulty power supply?

I've got an older PC that freezes/blue-screens at non-reproducible times. I suspect that it's caused by a faulty power supply, mainly because I don't have any other idea. How can I diagnose this...

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