System shuts down unexpectedly PC experiences frequent power cycles
System shuts down unexpectedly PC experiences frequent power cycles
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I received a challenging issue that remains unsolved.
- Asus Tuf 3070 ti OC GPU
- X570-A Pro motherboard
- Ryzen 7 3800X processor
- 2x8GB 3200 Corsair Vengeance RAM
- 700W 56A power supply
Issue: While browsing or playing games, the screen turns black and audio freezes into a loop lasting 2–3 seconds before the PC restarts. The monitor fails to power off and simply loses signal. Other fixes tried didn’t work:
- Overheating concerns due to the CPU drawing up to 105W; I upgraded to a cooler that supports higher loads.
- Old GTX 1660 reached temperatures of 80–90°C, so switching to an RTX 3070 Ti helped, but it still struggled to stay under 70°C during gaming and kept temperatures around 60°C.
- A faulty PSU was suspected; I replaced it with a new unit, but the problem persists.
Diagnostic clues:
- The EZ Debug light flashes when the PC restarts.
- Random restarts occur even while browsing the web.
- CPU overheating is confirmed by HWinfo monitoring.
- Audio stops working except for keyboard lights and monitor signal loss.
- No power loss during restarts; all indicators remain active.
Additional observations:
- Single and multiple benchmark tests ran smoothly without restarts or overheating.
- After a full restart, I had to log in again and reopen programs.
If you have further questions or want me to run any tests, feel free to ask. I’m open to assistance, as the service has reached its limits.
You're probably dealing with your CPU or RAM stability. Even if benchmarks look good, issues can still pop up. Are you using PBO without doing a manual setup? For memory, try running tests like TM5 with extreme@anta777 config or OCCT to check stability. After the PC restarts, do you see errors in EventViewer? If WHEA_LOGGER logs any memory-related messages, that points to a memory problem.
In the event viewer it displays an "41" indicating an unexpected shutdown possibly due to voltage issues. On my B450M, I managed to resolve it after updating everything, though it still worked. I ended up purchasing a UPS since my home power occasionally flickers... That seemed to fix the problem.