Custom PC turns off after about 1 minute

Yaxajax

Honorable
Jul 12, 2015
19
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10,515
I'm running a custom PC I built 2.5 years ago. I take good care of it - the internals are cleaned regularly.

It shut down once last week without warning. This happened again today. I couldn't power it on for about 40 seconds; the power button simply did nothing the first few times I pressed it. When the PC turned on, it turned off after about 30 seconds. I took off the side pannel, and nothing seemed to be warmer than usual.

After giving it a 5 minute break, it turned off after about 1 minute. After giving it a 20 minute break, it turned off after about 5 minutes. During the time it was on, I monitored the CPU and GPU temps. CPU idled at 52, and the GPU stayed around 38.

When I try to turn my PC on, I may have to hit the power switch a few times.

I suspect this may be a power issue. I used to live somewhere that had very frequent power outtages, and after experiencing a few of those, I bought a UPS. It does not react when my computer shuts off. My PSU is likely the weakest component in my rig sporting no 80+ certification and being over 2.5 years old.

It may be worth noting that when it does power on, it boots quickly and it functions normally before abruptly shutting off.

Does this problem seem to be PSU related? Is there anything else I could check?


MSI 970A-G46
FX 8350
MSI GTX 970
Crucial Ballistix 1866 CAS 9, 2x8GB
Seidon 120v AIO CPU cooler
Cooler Master eXtreme Power Plus 700W PSU
Corsair 240GB SSD
10GB extraneous HDD storage
Cooler Master Storm Scout 2 Case
 
Solution
If it does not have an 80+ rating i would switch that PSU out asap. Try ordering a new one and see if you experience the same problem, or if you have a friend/relative the has atleast an 80+ bronze PSU with a wattage of atleast 550 to test with. I'm going to assume that is not the case, and you really need a higher quality PSU anyways, so here are a couple personal recomendations: http://www.newegg.com/Product/Product.aspx?Item=N82E16817151096&cm_re=seasonic_s12ii-_-17-151-096-_-Product and http://www.amazon.com/Antec-Current-HCG-620M-BRONZE-Modular/dp/B006TVQTFE/?tag=logicaincrem-20. However, these are just recommendations, feel free to do some research and find some that fits your tastes.

Echronus

Reputable
Jun 7, 2014
69
0
4,660
If it does not have an 80+ rating i would switch that PSU out asap. Try ordering a new one and see if you experience the same problem, or if you have a friend/relative the has atleast an 80+ bronze PSU with a wattage of atleast 550 to test with. I'm going to assume that is not the case, and you really need a higher quality PSU anyways, so here are a couple personal recomendations: http://www.newegg.com/Product/Product.aspx?Item=N82E16817151096&cm_re=seasonic_s12ii-_-17-151-096-_-Product and http://www.amazon.com/Antec-Current-HCG-620M-BRONZE-Modular/dp/B006TVQTFE/?tag=logicaincrem-20. However, these are just recommendations, feel free to do some research and find some that fits your tastes.
 
Solution

Yaxajax

Honorable
Jul 12, 2015
19
2
10,515
Thanks for the reply. My case has not been moved in the past 3 months except for cleaning, so I doubt something would have happened to the power button. I'm going to rule out the case power button by starting the PC with a short now.
 

Echronus

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Jun 7, 2014
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Sure try that, there is the off chance somehow a connection from the PSU to the motherboard has somehow come lose and is causing a power issue. Try opening up the case and checking all the connections. Specifically the power button, i once did not fully plug in my power button to the motherboard and it caused my PC to turn on for a brief time and shut off permanently until I fixed the connection.
 

Echronus

Reputable
Jun 7, 2014
69
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4,660


Nice to see I was able to help. The PSU is the most important component of any build. You need clean, reliable power that those cheap PSUs just don't provide. Now that you have a nice one it should last you a good while, because components become more power efficient every generation. Anyways, I wish you the best of luck in your future PC endeavors.