Random PC turn off

[subhaac]

I have upgraded a quite a number of parts on my PC recently. My PC seems to turn off as if there was a power cut suddenly, this happens a lot with google chrome I noticed. But, I never had this problem before before I upgraded to the new components. It's not a BSOD or anything, it just turns off without warning, like power cut off or something. These are my specs:

Intel Core i7 4790K (Stock)
Zalman LQ310 Liquid CPU Cooler
Asus Maximus VII Hero Z97 Mobo
16GB Kingston Hyper X Fury 1866Mhz
Asus Strix GTX 980Ti (Used to be a GTX 970)
Samsung 850 Evo 250GB
Samsung 840 Evo 250GB
Intel 530 Series 120GB
Corsair RM650 PSU
WD Black 500GB
Asus MG279Q Gaming Monitor (Used to be a Dell S2340L)

I'm experiencing this more after the monitor upgrade, but i'm not entirely sure, it could be the GPU. I read somewhere it could be RAM problem, and I just changed to new 16GB Kingston Hyper X RAM and the problem still persists. I'm switching out to a new PSU later this month too.

Which one of my component is causing this random shutdown? How do I find this out? The random shutdown happens mostly when idling and playing light games like League of Legends, never had a shutdown like this when i'm playing more demanding games like GTAV or Crysis 3.

 

[1N07]

I have upgraded a quite a number of parts on my PC recently. My PC seems to turn off as if there was a power cut suddenly, this happens a lot with google chrome I noticed. But, I never had this problem before before I upgraded to the new components. It's not a BSOD or anything, it just turns off without warning, like power cut off or something. These are my specs:

Intel Core i7 4790K (Stock)
Zalman LQ310 Liquid CPU Cooler
Asus Maximus VII Hero Z97 Mobo
16GB Kingston Hyper X Fury 1866Mhz
Asus Strix GTX 980Ti (Used to be a GTX 970)
Samsung 850 Evo 250GB
Samsung 840 Evo 250GB
Intel 530 Series 120GB
Corsair RM650 PSU
WD Black 500GB
Asus MG279Q Gaming Monitor (Used to be a Dell S2340L)

I'm experiencing this more after the monitor upgrade, but i'm not entirely sure, it could be the GPU. I read somewhere it could be RAM problem, and I just changed to new 16GB Kingston Hyper X RAM and the problem still persists. I'm switching out to a new PSU later this month too.

Which one of my component is causing this random shutdown? How do I find this out? The random shutdown happens mostly when idling and playing light games like League of Legends, never had a shutdown like this when i'm playing more demanding games like GTAV or Crysis 3.

Since it's not happening when you play demanding games, I would say it's one of these things:
Motherboard, PSU or RAM

Use the search in the start menu to find "cmd". Right click that and click "Run as administrator".
Then in the console, type: sfc /scannow
That will check windows for problems. (Unlikely windows is the problem though, since there were no BSODs)

To test your RAM:
use memtest86: Download memtest86 create a bootable USB with it. Boot to it and run. If you don't know how to do that here:
http://www.wikihow.com/Test-PC-Ram-with-MemTest86

If you want to you can check your OS drive as well, though I doubt that's the problem:
If you have an SSD, download a program called "SSDLife" and run that to test your SSD. If you're running your OS off of a HDD instead, download "HDTune" and run the "error scan".

Since there are no errors of any kind and the PC just shuts down, there's a good change your PSU is dying.

 

[Lawrence Taylor]

I had this problem the other day. It was my ram. i took one and ran the PC and havent had the problem since... when i was playing with one of the other ram it did it again meaning one of them was faulty.

Just try it.. it could be your PSU also, but do some test before anything.

 

[1N07]

I had this problem the other day. It was my ram. i took one and ran the PC and havent had the problem since... when i was playing with one of the other ram it did it again meaning one of them was faulty.

Just try it.. it could be your PSU also, but do some test before anything.

RAM can cause basically any kind of problem. Usually when there is no logical culprit, it's the RAM...
In this case it could also be the PSU, since USUALLY when it's the RAM there are errors of some kind. Not just straight up power down...

 

[Lawrence Taylor]

I had this problem the other day. It was my ram. i took one and ran the PC and havent had the problem since... when i was playing with one of the other ram it did it again meaning one of them was faulty.

Just try it.. it could be your PSU also, but do some test before anything.

RAM can cause basically any kind of problem. Usually when there is no logical culprit, it's the RAM...
In this case it could also be the PSU, since USUALLY when it's the RAM there are errors of some kind. Not just straight up power down...

it could be a Direct X problem too. Like when you're trying to watch vids or play certain ( not all games) you either get a BSOD or shutdown. <-- which in that case would be a GPU driver problem

 

[1N07]

I had this problem the other day. It was my ram. i took one and ran the PC and havent had the problem since... when i was playing with one of the other ram it did it again meaning one of them was faulty.

Just try it.. it could be your PSU also, but do some test before anything.

RAM can cause basically any kind of problem. Usually when there is no logical culprit, it's the RAM...
In this case it could also be the PSU, since USUALLY when it's the RAM there are errors of some kind. Not just straight up power down...

it could be a Direct X problem too. Like when you're trying to watch vids or play certain ( not all games) you either get a BSOD or shutdown. <-- which in that case would be a GPU driver problem

I haven't heard of a DirectX problem causing a shutdown without errors...
Even if it caused the drivers to chrash and not be able to recover, that wouldn't crash the whole system without errors...

Though I suppose it's possible the GPU driver crashes and doesn't recover, windows throws a BSOD, but he can't see it...
Does the monitor go black and then after a while the whole system shuts down, or does it shutdown instantly?

Maybe you should take a look at the minidump. Maybe there are some errors...

Get this: http://www.nirsoft.net/utils/blue_screen_view.html
Run the program and check if there are crash dumps.