System randomly shut off mid game

RhinoTV

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Mar 2, 2017
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So i was playing fortnite and for some reason like maybe 20 mins in my pc just shut off. I just upgraded my psu ( evga 750w gq) . Problem is i have been playing gta v for like the past 3 days fine. Now i do have my back pannel open ( showing all the cables) as im changing case in like a couple days and dont want to cable manage. Any ideas?
 
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It seems that it could be the GPU, PSU or motherboard (least likely because it's new). The GPU is old and it's the prime suspect. The PSU can still be faulty despite the fact that it's new. Unfortunately in your case this issue seems to be rare and troubleshooting will take a lot of time.

1) Remove the cable extensions. Maybe the PSU and/or GPU don't like them. A single cable overload could trigger a protection mechanism inside the PSU shutting the system down. So try to operate your system without those cables for a week or so. If you still get a shutdown, then the cables aren't responsible.

2) Try to use your older PSU or another one (perhaps borrow one from a friend) for some time. If the issue is gone, then the new PSU may be...

RhinoTV

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Mar 2, 2017
331
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Yep temps are fine. Got a i7 8700k running at maybe 55-60 c? And the man 970 is like 67-72c. It’s been working fine normally



 
How many times has it happened so far? If it was only once maybe it was an isolated incident perhaps from an unstable power supply from the power grind. Since it's only in one game, it doesn't seem to be a hardware issue. On the other hand usually bad drivers or software usually cause the system to auto restart (or a blue screen) and rarely they may cause an unexpected system shutdown. In fact I've only seen it once or twice and I've repaired a lot of PC systems in my life.

Finally if those shutdowns suddenly start increasing, then the most probable suspects are the PSU and then the GPU since it's the oldest part. As a graphics card gets older (usually after 3+ years), it may start developing stability issues from its old and used VRM components. Of course it all depends on your specific card model and if it uses quality components or not and perhaps more importantly how heavily it's been used in its lifetime. Good luck.
 

RhinoTV

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Mar 2, 2017
331
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4,785
Sorry for the late reply. Was playing subnautica and got it again. Like i did just upgrade my psu but was playing gta and had no problems. Only thing i can kind of think of is the back pannel being open. Starting to worry me now...



 

RhinoTV

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Mar 2, 2017
331
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4,785
Oh i also forgot to add. Im using cable extensions. Using some off amazon and had good reviews. Dont know if that would make anything different but wanted to let you know :)



 
It seems that it could be the GPU, PSU or motherboard (least likely because it's new). The GPU is old and it's the prime suspect. The PSU can still be faulty despite the fact that it's new. Unfortunately in your case this issue seems to be rare and troubleshooting will take a lot of time.

1) Remove the cable extensions. Maybe the PSU and/or GPU don't like them. A single cable overload could trigger a protection mechanism inside the PSU shutting the system down. So try to operate your system without those cables for a week or so. If you still get a shutdown, then the cables aren't responsible.

2) Try to use your older PSU or another one (perhaps borrow one from a friend) for some time. If the issue is gone, then the new PSU may be responsible. I once had a customer with a similar issue, but in his case he was getting a black screen after he got a new PSU. In the end the new PSU proved to be fine and the GPU was faulty and slowly dying. It was a 4+ year old model it had only worked with the same PSU all it's life. But the old PSU was providing the GPU will lower +12V voltage. When the new PSU was providing the right voltage the GPU couldn't work anymore and all its failing issues came to life.

3)Testing the GPU is more difficult. You have to either test it in another system for a good amount of time or test your system with another graphics card that has similar power draw and preferably an Nvidia card since getting an AMD GPU and changing the drivers could cause more issues.

You have to make sure that all those tests are done for the right amount of time in order to come to the right conclusion. For example, if right now you are getting a shutdown every 2-3 days you have to test your system for at least 5 days and you have to game a lot (lol). Good luck.

EDIT: I forgot to mention that you could stress test your system (CPU and GPU). It may help you pinpoint the suspect. For more info on stress testing read this => https://www.tomshardware.com/reviews/stress-test-cpu-pc-guide,5461.html , and this => https://www.tomshardware.com/reviews/how-to-stress-test-graphics-cards,5449.html . In your case the GPU stress testing should be the most important thing to look into, as a failing GPU will have trouble completing those stress tests. However keep in mind that the GPU may fail those tests but the cables or the PSU may still be responsible for this issue so test them first with steps 1 & 2.
 
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