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ATX power supply unknown failure

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wormjacob

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ATX power supply

im a little bit confuse with my ATX power supply sometimes it starts and then dont start and i encounter a lot of ATX PS is there any trouble with this can i repair it or just replace it. any im new here
 

It may not be the PSU that's at fault, I had a similar problem a few months ago and it turned out to be the motherboard connection to the PWR_ON# terminal that wasn't being grounded properly everytime. How often does the problem occur?
 

Could also be due to faulty electrolytic capacitors, dry solder joints, etc.
 

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