PC turns off without warning whilst gaming

[baking]

So over the last couple of months my PC has start to shut down when playing some games. I never had any issue until I bought Divinity Sin 2 a few months back. I played for a week or so without any trouble, then after that I would start the game and about 30minutes my PC would just completely turn off without any warning, then restart itself a few seconds later.

Since then I have tried playing a few different games and the problem varies. I tried CSGO and the new COD for a few hours without any issues. I have tried PUBG and it lasts about an hour before shutting down. I just reinstalled Battlefield 1 and it didn't even last 1minute into actual gameplay before the power went.

I have cleaned my PC. I ran a stress test on the CPU without incident.

Does anyone have any idea what may be failing and how I can check? I guess I need to swap parts but I have none available to swap with so will have to purchase some if there are recommendations? I am not particularly great with computers so I apologise for my lack of knowledge, but any potential solution may need spelling out for me!
Thanks in advance


Windows 7 64
Intel Core i7-4820K CPU @ 3.7GHz
16GB RAM
GeForce GTX 780 Ti
Gigabyte Technology X79-UP4
PSU Corsair 750w

 

[Barty1884]

How do your temperatures look? CPU and GPU specifically, but also motherboard etc. HWMonitor can help you out there.

Given it's only happening in-game, drivers could be a possibility - as could memory be an issue.
If I were you, Id remove GPU drivers in safemode with DDU:
http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

Then, once fully removed, reinstall the latest release from nVidia's website.


You could also run MemTest on your RAM, just to rule out errors.
https://www.memtest86.com/

 

[baking]

How do your temperatures look? CPU and GPU specifically, but also motherboard etc. HWMonitor can help you out there.

Given it's only happening in-game, drivers could be a possibility - as could memory be an issue.
If I were you, Id remove GPU drivers in safemode with DDU:
http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

Then, once fully removed, reinstall the latest release from nVidia's website.


You could also run MemTest on your RAM, just to rule out errors.
https://www.memtest86.com/

Thanks for your reply.

I have fully removed the GPU drivers and reinstalled the latest release. I have also ran the memtest with 0 errors, however the issue still persists.

It appears to only do it in games where there is a lot going on - the last few weeks I have played COD and CSGO with absolutely no problems, but as soon as i play games on a bigger scale - for example - battlefield, rust, divinity original sin - the computer just shuts down and restarts. The only exception is Fortnite.

Sometimes it'll be within a minute of loading the game, even on the home-screen, whereas other times it will be within an hour of playing. Changing the graphics to the lowest settings makes no difference.

 

[baking]

any other ideas ?

 

[baking]

anyone able to give any other options?

Judging from other threads, a lot of solutions seem to be the PSU. My current one is 750W, do i try the same one again or go for something higher like 850?

 

[J_E_D_70]

I’d lean towards psu. It could just be going bad and you don’t need more than 750w - even that much is overkill for a single gpu.

Check windows logs for any warnings.

Nothing is in stone, but here’s the typical behavior of different issues: power off - psu, bsod - ram/drivers, game crash - drivers, slow down - overheat/malware.

 

[Barty1884]

Depends on the PSU specifically.... which Corsair? CX750? Yeah, probably. They're not known for longevity.

 

[baking]

There is no information gained from window logs. Just says unexpected shut down.

The PSU i have is Corsair CX750 M.

So is the general consensus to just get the same again or go for something more? Reason im considering more is that this was my friends PC and he all he really did was play CSGO on it. Now its been passed down to me and its the first time its really been tested with some more powerful games and it has failed within a couple of months

 

[Barty1884]

Neither the same, nor something "more".

You want a better quality PSU.

130W TDP CPU + 250W TDP GPU + say 75W for the balance of the components puts you about 450W absolute max load.
If you're overclocking (CPU &/or GPU) then you'll push your power draw up.

I'd say, comfortably a 600-650W, quality unit will be more than sufficient in allowing you to OC.

Looking probably between $60-$80 or so, for a top quality unit.
In order of preference IMO:
https://pcpartpicker.com/product/WrNypg/seasonic-focus-plus-gold-650w-80-gold-certified-fully-modular-atx-power-supply-ssr-650fx
https://pcpartpicker.com/product/Rp8H99/corsair-power-supply-cp9020091na
https://pcpartpicker.com/product/vHhj4D/rosewill-power-supply-capstoneg750
https://pcpartpicker.com/product/nB3RsY/seasonic-power-supply-s12ii620bronze

All great quality options - the S12II is a dated platform at this point, but it's still a great PSU.