Is my PSU dying?

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Thebonius

Thebonius

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Jun 14, 2014
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So recently, after i changed my CPU/GPUs cooling paste, my computer has started to randomly shut down, and not like "windows is shutting down" or BSOD, just completely "pull-the-plug" shutting off. To get it to turn on again i have to shut off my PSU and then power it on again to even get my computer to power on.

I've monitored the temperatures of my computer, and sure my GPU gets up to 60-65*c and my CPU might get around 40*c under load, but this shouldn't be nearly enough to trigger a thermal shutdown of any sort(I set thermal shutdown at 100*c to be sure of this!).

I've also tried changing out my GPU with my old one to see if i got cooling paste somewhere it shouldn't be and causing a short. But that didn't fix it.

Just ask if there is something else you want to know..
 
Solution
InvalidError
Since the AX is one of the best Corsair-branded series, quality should not be an issue but the way the PSU requires power-cycling before it will turn on again indicates that one of its protections must have tripped. The easiest way to tell if this might be the PSU throwing false positives short of buying an oscilloscope to catch what happens just before the PSU shuts down would be to try a different PSU.
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Thebonius

Thebonius

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Jun 14, 2014
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Yeah, my fault, tought it mentioned in the CPU-Z signature. Its a Corsair AX760. i've had it for 3 years now.
 
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Thebonius

Thebonius

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Jun 14, 2014
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10,530


So i did what you said, used the log (https://docs.google.com/spreadsheets/d/1w3ojkxuvWnpSYyd7473PMr4habAJAfGvvAtxOMmFstM/edit?usp=sharing), and it does not go below 11.849V. Temps also arent anything over the top unusual, nothing that would trigger thermal shutdown. This is very confusing.
 
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InvalidError

InvalidError

Titan
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May 18, 2007
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Since the AX is one of the best Corsair-branded series, quality should not be an issue but the way the PSU requires power-cycling before it will turn on again indicates that one of its protections must have tripped. The easiest way to tell if this might be the PSU throwing false positives short of buying an oscilloscope to catch what happens just before the PSU shuts down would be to try a different PSU.
 
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