Strange and sudden shutdowns

[Cav3Johnson]

Wondering if someone can help me here. Lately (within the last week) ive been having sudden and unexpected shutdowns. The best way to explain it is as if my computer power button was held down without me knowing (it isnt). Its that kind of sudden.

I had a friend try and help me figure the problem out, but there are no crash reports he could find and the only dump file that was saved mentioned my gpu. I updated my drivers, but the problem persists. I thought "maybe my computer is overheating" but Ive checked each seperate part, all have working parts, the gpu never breaks 35 degrees C, cpu was fine when stress tested, and Im just lost for what to do.

I thought "maybe its because of League of Legends" which is running 80% of the crashes, but after contacting support and doing what they said, nothing has changed. Ive done security scans to check for bugs or viruses, got nothing. I just dont know what to do anymore. 

 

Please help. 

[BikerBoy1225]

The first thing I would check is to see if the power button is wired correctly. Make sure the wire is intact and there is no debris near the pins that could be making a connection. Even unplug the power button and use a screwdriver as your power button for a while to see if it still dies. Another possible issue might be the power source. Are your breakers to that room intact. The power supply could be either damaged or overloaded. Make sure you aren't overloading your power supply using a wattage counter online. Give a 10-20 percent headroom with calculations. Since you said your GPU was mentioned in a dump file I would say take it out and use your computer to see if the shutdowns still occur. If you have another power supply lying around I would suggest also trying that.

Sorry for the running on I just kind of dumped ideas. Hope this helps.

[Cav3Johnson]

1 minute ago, Abyssal Radon said:

For unexpected shut downs, one culprit could be the PSU. I had a PSU that could not give my graphics cards enough AMPs and after I replaced it, everything is fine.

My psu is a gold rates corsair 750. I did the math when I got my new gpu and i only needed 500w at the time. Is there any possibility that could have changed?

[Cav3Johnson]

2 minutes ago, BikerBoy1225 said:

The first thing I would check is to see if the power button is wired correctly. Make sure the wire is intact and there is no debris near the pins that could be making a connection. Even unplug the power button and use a screwdriver as your power button for a while to see if it still dies. Another possible issue might be the power source. Are your breakers to that room intact. The power supply could be either damaged or overloaded. Make sure you aren't overloading your power supply using a wattage counter online. Give a 10-20 percent headroom with calculations. Since you said your GPU was mentioned in a dump file I would say take it out and use your computer to see if the shutdowns still occur. If you have another power supply lying around I would suggest also trying that.

Sorry for the running on I just kind of dumped ideas. Hope this helps.

Ill check the power button conmection. As for the psu, it has 250w more then what I need (gold rated corsair 750w) so i wouldnt think power would be the problem, but idk. Breakers I cant control since im in a door, but my roommate hasnt had troubles, so I doubt its that

[BikerBoy1225]

1 hour ago, Cav3Johnson said:

Ill check the power button conmection. As for the psu, it has 250w more then what I need (gold rated corsair 750w) so i wouldnt think power would be the problem, but idk. Breakers I cant control since im in a door, but my roommate hasnt had troubles, so I doubt its that

The culprit seems to either be a faulty PSU or the power button at this point. Any other ideas from people that see this would be greatly appreciated as I am a relative noob.