Question PC Randomly Enters Sleep Mode, Restarts, or Shuts Down

Oct 27, 2020
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I have been having this issue since I installed Windows 10 but it has become much worse in the past two weeks. My PC will randomly shut down, either showing a black screen (as if I'd forced a shutdown with the power button) or the actual "Shutting Down" screen (as if I'd actually intentionally shut it down). Alternatively, it will also sometimes just enter sleep mode by itself instead but can't be woken with the power button or keyboard/mouse input; when this happens, unplugging and plugging in the computer actually wakes it up and it resumes all programs that were running.

This happens frequently in the middle of working, regardless of what programs are running.

Things I've tested and ruled out:
  • PSU
  • Case Power Buttons
  • Overheating/CPU Temperature/Fans
Specs:
MSI 970 Gaming Motherboard
AMD 6300 6-core CPU
NVIDIA GTX 960
Sandisk 500GB SSD with Windows 10
4GB x 2 Crucial Ballistix RAM
500 watt EVGA PSU
Corsair Carbide SPEC-02
 

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