I'm having a frustrating issue with my PC where it consistently black screens and reboots while playing League of Legends, but I can't seem to find a solution. My setup includes an AMD Ryzen 7 7700X, an Nvidia RTX 4070 Super, and a Corsair RM1000e power supply. Interestingly, while the system doesn't crash when idle or when running other games (though I haven't tested extensively), I noticed that when the GPU is removed, my PC runs League without crashing for about 20 hours if it's lying down. However, if it's standing up, it crashes within an hour regardless of whether the GPU is installed. I'm at a loss here and planning to take apart my PC to rebuild it next. Any ideas on what might be causing this?
1 Answer
It sounds like you might be dealing with a hardware issue. Have you tried stress testing your components? Run Furmark and Cinebench to see if they crash— if they don’t, that could rule out some hardware problems like the PSU or CPU. Let me know what you find out!

I ran both Cinebench 24 (multicore) and Furmark together and didn’t experience any crashes.