Why are my power supplies failing?

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Tim_99

Commendable
Sep 19, 2016
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1,510
I am currently rma'ing my 4th power supply this year. The first 3 were EVGA 850G's. After the last one failed in June I bought a Corsair HX850i Platinum and replaced my battery backup with a cyberpower 1500avr with a 900watt output as I am semi rural. The computer sits on a hardwood floor beside my desk and has good airflow.

Coolermaster Mastercase Pro 5 modular tower
Asus Maximus VII Hero
I7 4790k w/ Corsair H60 Liquid cooler
Strix 980ti OC
G. Skill Trident X DDR 3-2400 2x8GB
Samsung 850 pro 250 GB
Seagate Barracuda 2tb @7200 HDD
Generic DVD Burner

I don't understand why these keep failing.
 
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I almost 90% sure it's not your electrical outlet as the battery backup unit would alert you immediately. I don't know about CyberPower but APC has software that you can check your voltages using a USB crossover cable that comes with it.
Just looked it up, they do operate same, https://www.cyberpowersystems.com/products/software/pppe-windows-software
Install the software and connect the UPS to your PC. Use a laptop if your worried about the outlet but I don't think that's you problem.
Check your Power Supply wiring to the motherboard. Did you put the leads in all the correct spots? Motherboard as CPU Power Feed, Main Board Power Connector & the multi-line case power panel. Make sure all those are secure and in the correct locations...
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pepslight

pepslight

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Sep 20, 2014
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Hey Tim,

I cannot answer exactly why your power supplies are dying, but giving you used some really high end Power supplies I would turn my attention to the Power outlet itself. I would guess the Power supply is getting too much or even not enough current. If the current if for example to High the internal transistors would overheat and extremely shortens the Power supply life. or even not getting enough current could shorten the lifetime, the Components would be working too hard for getting the adequate current.

Now you said you´re on a Rural area, meaning the Power lines are not necessarily maintained. You could check with an electrician. BUT again this is only guesses trying to point you on the right direction. I started studying for electrician and with the little I learned I would say its something coming from the socket.
 
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Tim_99

Commendable
Sep 19, 2016
3
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1,510
that's interesting, I had thought that a part of the purpose of the battery backup was to stabilize the power. I do have another computer that is a 4 year old stock dell in another room that is given me no problems so I guess when I get the new psu I should try switching outlets
 
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OBrien Tech

Commendable
Sep 21, 2016
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1,520
I almost 90% sure it's not your electrical outlet as the battery backup unit would alert you immediately. I don't know about CyberPower but APC has software that you can check your voltages using a USB crossover cable that comes with it.
Just looked it up, they do operate same, https://www.cyberpowersystems.com/products/software/pppe-windows-software
Install the software and connect the UPS to your PC. Use a laptop if your worried about the outlet but I don't think that's you problem.
Check your Power Supply wiring to the motherboard. Did you put the leads in all the correct spots? Motherboard as CPU Power Feed, Main Board Power Connector & the multi-line case power panel. Make sure all those are secure and in the correct locations.

Good Luck with your second try!

I don't know your skill level but always check YouTube or Google for help.
http://www.pcguide.com/proc/config/mbcase-c.html
 
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Solution
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Tim_99

Commendable
Sep 19, 2016
3
0
1,510


 
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