850W Power Supply unable to supply enough power to system?

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lawlhwut

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Sep 29, 2014
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  • i5 4670k
    z97
    780
    Seasonic X-850
    2 HDDs
    1 SSD
So this is basically my system. I had this system for about 3 months, and during that time I didn't have a single problem. But recently, my computer started randomly turning off at random times. It first happened when I was playing The Forest (which is pretty stressing on this set up). The temperatures were around 50 - 60C for my graphics card and cpu but it still failed. Afterwards, it would just randomly shut off at random times. I tried taking out both HDD's and it helped a bit but it would still randomly shut off (with the HDD's in it would shut off every 10 minutes, without them maybe a few hours). I ran a stress test on my CPU, it passed flawlessly. Temps never passed 51. I ran a stress test on my 780, and the computer crashed 3 minutes into the test when the temperature only got up to about 50 degrees. So I took out the graphics card and now Im able to successfully run my system for days. I'm guessing that the power supply isn't able to supply enough power for all of my parts due to degradation or faulty parts. Or can it be the motherboard unable to properly traffic the power? This 850W power supply should be way more than enough to power anything but its showing these symptoms that are often shown from systems that do not get their required power.

So what can the problem be? Should I just RMA my PSU? Can it be something wrong with my graphics card or my mother board?
 
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JackNaylorPE

JackNaylorPE

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Oct 30, 2004
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A quality 850 watt PSU will run two overclocked two the wall 780s with not a hint of strain....and that **is** the best model 850 you can buy. I suspect either a Windows OS mess-up or driver issue.

What does event viewer say after it crashed ?

Have you uploaded your dmp files to sevenforums ? (or eightforums as applicable)

 
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toyftw

toyftw

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Jul 29, 2012
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Hi - Since that PSU can run a system with 2 780's, I suspect the problem is more likely the GPU than the
PSU. Do you have or can you borrow another GPU to try in your system? Or is there another PC you could
try the X-850 in? It is unlikely but possible the PSU has degraded or blown a capacitor, so trying it in a diff PC
will confirm or eliminate the PSU. The problem could also be the mobo or even a bad RAM stick
(run memtest 386 on each stick separately).
 
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lawlhwut

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Sep 29, 2014
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It's not a bsod, its a complete power outage. Usually I hear a click (which I'm guessing is the switch) and bam, everything is off, then the computer tries to start up again.
 
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lawlhwut

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Sep 29, 2014
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That's a bit of a problem atm. I just moved to Indiana from Hawaii and I don't have a car to go to a computer shop nearby, and I don't know anybody here who has a desktop computer. As much as I want to test it the parts separately, it's impossible at this very moment. I will try memory tests (although I highly doubt that that is the problem).
 
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lawlhwut

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Sep 29, 2014
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So I checked my Critical Events log and it shows Kernel-Power errors with the detail "The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly." And my system has shutdown once more even without the graphics card being inside, so I'm narrowing down to psu and motherboard.

Edit: Quoted the wrong person
 
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