I built my PC a year ago, and it was running smoothly until recently. I tried playing Cyberpunk for the first time last week, and now my PC restarts unexpectedly after just a few minutes of playing any demanding games or even when closing them. The performance seems fine, and I haven't noticed any overheating issues. When it restarts, it doesn't completely shut down—lights stay on and everything. This makes me think it might not be a PSU issue. I'm especially worried this could be linked to my used GPU. When the restart happens, I see 'Display Port' on my screen, but I'm not sure if that means anything. I've tried updating my drivers and even going back to older versions, but nothing works. Here are my specs: CPU: Ryzen 5 5600, Motherboard: ASRock B450M/ac R2.0, GPU: RTX EVGA 3070, Memory: 2x16GB Lexar THOR DDR4-3200, PSU: NZXT C750 750 W 80+ Gold.
4 Answers
I thought it might be a PSU problem too, but considering your PSU is generally regarded as reliable, I'd look into if your cooling system is up to par. If components are overheating and have thermal issues, it could cause your PC to restart. Make sure everything is cooled properly!
It’s a good idea to log your system temps with HWInfo64. Sometimes GPUs can start to act up without showing immediate signs of failure. However, if the restarts seem tied to high load, I’d look at the PSU first before anything else.
It sounds like it might be a PSU issue. A failing PSU can cause random restarts without a complete shutdown. If your GPU were failing, you’d likely see a Blue Screen of Death (BSOD) instead. Just to be safe, check your PSU's health, especially since it’s only been a year.
Have you tried monitoring your temps and voltages using HWInfo? It could help you pinpoint where the problem lies—whether it’s the PSU or possibly the motherboard. Keep an eye on your components’ temps during load. If you’re seeing anything unusual, that could be a clue.
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