I built a PC about a month ago, and I've been experiencing random shutdowns without warning. This mostly happens when I play Insurgency: Sandstorm, but I've had a few shutdowns while playing other games as well. Sometimes it will shut down after a few minutes, other times I can play for over an hour before it happens. There's no blue screen or error message, just a complete shutdown. I've checked the Windows Event logs, but the only thing I see is that the last shutdown wasn't clean. Initially, I thought it might be overheating, but I ran Furmark and Prime95 at the same time for 30 minutes without any shutdowns, so that seemed fine. I also tested the RAM with MemTest86, and everything checked out. Here are my specs:
- MSI B850 Gaming Plus Wifi
- AMD Ryzen 7 7800X3D
- Sapphire Pulse AMD Radeon RX 9070 XT
- DDR5 Kingston Fury Beast 1x32GB
- be quiet! Power Zone 2 1000W
Idle/browsing temps:
- CPU: 55-60°C
- GPU: ~35°C
Gaming temps:
- CPU: 72-85°C
- GPU: ~50°C
Benchmarking temps:
- CPU: 90°C
- GPU: 55°C
By the way, I have the CPU undervolted to -25 on all cores. What troubleshooting steps should I take next?
3 Answers
Your CPU temps should ideally be lower when idle, around 25-30°C is optimal. If you aren't using a water cooler, consider getting one, or at least check your thermal paste application. I had similar shutdowns before and swapping out the paste for Arctic MX-6 improved my idle temps significantly!
Even though your CPU temps seem fine during benchmarking, the Ryzen 7000 series can run pretty hot under load, so I understand your concern there. But if overheating were the main issue, I'd expect it to shut down during those stress tests as well. Still, double-checking your cooling setup wouldn’t hurt!
It seems like the issue could be related to your power supply since your temps look fine. If it's just shutting down randomly, that's a classic sign of a failing PSU. Have you thought about using a power supply tester to check it out? That might help you pinpoint the problem.
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