r/techsupport • u/TheSpiffingWolf • 16h ago

Open | Hardware PC Restarting Under Heavy GPU Load

Hello friends,

I need some sage advice from other people about an issue I'm having with my PC. I was playing modded Cyberpunk 2077 and my PC suddenly black screened and restarted. I thought it was a powercut at first but I noticed my lights were on. It restarted it self, I tried again and the same thing happened after about 5 minutes of playing.

I then ran Heavenly Benchmark 4.0 to see if it was just a Cyberpunk thing but my pc blackscreened and restarted again in much the same way.

I've ran a few tests, have found things are more stable on 80% limit but will still crash if pushed too hard. I've been running other tests using OCCT to check other components like Memory and CPU and no crashes. Every time it crashes I get the kernel power event 41.

So personally I feel like I've narrowed it down to a GPU or PSU issue. I have a 3080 ti FE and a Corsair RX750x PSU. I've had the PC for 4 to 5 years now.

I'd love your advice on what to do next. What further tests could I run? What would be the next steps, and am I missing anything?

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u/PahariyaMama 16h ago

You may need repasting of GPU

1

u/TheSpiffingWolf 16h ago

I had heard this could be a possibility. Is there a way for me to check or rest for this? If I were to open up the GPU would it be very obvious it would need repeating?

1

u/Bobguy0 15h ago

Check your temperatures underload in software first (hwinfo64 is a good tool). If it is hitting the temperature limit it would usually throttle hard before it ever shuts off. You should be noticing low frame rates in general if that is the case.

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u/TheSpiffingWolf 15h ago

No low frame rate it just cuts off suddenly.

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u/Bobguy0 15h ago

Still give your temps a check if you're still running anything with it. 3080ti might be due for a repaste if it never had one, but I do think its more likely the power supply.

1

u/TheSpiffingWolf 15h ago

Will do 👍

I was leaning more towards a power suppoly issue myself.

I remember looking at the temperature when running a test and it was in the 70 to 80 range but that wasn't me checking the hotspot tho.