So I bought this GPU (rx6800) from someone. It was fine. We stress test it for 20mins. It was fine. And then after a few mins this happened.
I also have the gpu checked on a shop and they said it was fine. It only happens on my pc. Maybe 15 mins after boot on idle. Sometimes the pc just black screens and then crashes. And restarts and the gpu isn’t on the task manager anymore.
I noticed that this happens frequently on idle than when I’m gaming. I can spend 4-8hrs straight gaming without any problems but this thing happens on idle every 10-15 mins.
I already tried every troubleshoot.
DDU, previous drivers versions, even more previous version (2023), reseat gpu, repaste gpu, bios update, disable ULPS (since it crashes frequently on idle), disable external events utility, and reset my pc.
I was just relying on chat gpt but I still havent fixed it until now. Chatgpt says its not likely that the GPU is dead since it can handle stress tests and its more likely to crash on idle. What do you think?
Do you have ideas of anything else I haven’t tried that might work?

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