PSU Energy starvation
PSU Energy starvation
Hello everyone!
I'm experiencing some problems with my machine, and I suspect the power supply unit might be the issue. After playing Cyberpunk 2077 for about 1 to 1.5 hours, the PC just powers off and restarts right away. I think this aligns with what's mentioned in the title... But I'm not very familiar with hardware to be certain. To clarify my point, I'll use cars as an analogy... More like high-performance competition vehicles. Some have two fuel tanks – a main one and a smaller auxiliary tank. If the main tank's pump fails or runs out of fuel, the secondary tank takes over until the main one works again. In this scenario, if the PSU can't provide enough power, it will run low for a short time before shutting down completely, then restarting. I also removed the RAM and went through all the troubleshooting steps I could – even reinstalling Windows 11 twice due to this issue.
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) I checked online but found nothing relevant...
Note: This might be my overthinking about a straightforward problem, but I can't find any other explanation for the issue.
Another interpretation is that your local AC mains supply could experience brief interruptions occasionally (too brief to notice except possibly as a short flicker of overhead lights in the same room).
If your Hummer PSU has an extremely short interruption time (less than 17 milliseconds) and my calculated AC mains glitches are longer, your motherboard may not receive enough power and could restart.
Using the car fuel tank analogy, low-cost PSUs tend to discharge quickly from the main electrolytic capacitor that holds charge from the rectified mains. If the value is too low, the hold-up time drops to just 10 to 12 milliseconds. High-quality PSUs often include larger bulk capacitors, allowing them to sustain operation for 25 milliseconds after a mains failure—well surpassing the ATX standard of 17 milliseconds.
I would recommend choosing a higher-quality PSU from reputable brands, such as Seasonic or Corsair.