I built my PC about 2 years ago and haven’t had any issues until now. The problem started when I got back from being away for a week. I pressed the power button on the PC and nothing happened. So I turned the PSU power switch off and back on, then pressed the power button and the PC started perfectly. Once it’s running, everything works normally and there’s no issues. But any time I shut down the PC, it won’t start up unless I cycle the PSU power switch off/on first, then press the power button.
I also noticed that if I cycle the PSU switch off/on, then wait about a minute, the computer will not turn on when I press the power button. I have to cycle the PSU switch off/on and then press the power button right after, then the computer starts up fine.
What I’ve checked:
Hardware:
Is this just a failing power supply? If so, I’m surprised because it’s a decent quality Corsair PSU, and I haven’t overworked this computer at all. The computer only gets light usage.
Or maybe it’s a mobo issue, or something else?
It’s interesting how consistent the fix is. Just cycle the PSU switch off/on, then it starts perfectly each time.
I’m planning to start by getting a new PSU and putting that in, but wanted to get any thoughts here first.
Thanks for the help!
I also noticed that if I cycle the PSU switch off/on, then wait about a minute, the computer will not turn on when I press the power button. I have to cycle the PSU switch off/on and then press the power button right after, then the computer starts up fine.
What I’ve checked:
- The cable between the power button and the mobo (no issues)
- I removed the power cable and jumped the PWR pins on the mobo and the computer did not start. So I don’t think it’s an issue with the cable or the power button.
- I checked all the power cable connections from the PSU to the mobo etc.
- The mobo doesn’t appear to be shorting on the case. The mobo mounting pins all look fine from what I can tell.
Hardware:
- Intel i9 10900K
- Asus ROG STRIX Z490-E mobo
- Corsair RM850x Power Supply
- Corsair Vengeance RGB Pro 32 GB (4 x 8 GB) ram
- RTX 3080 GPU
- Phanteks Eclipse P500A case
Is this just a failing power supply? If so, I’m surprised because it’s a decent quality Corsair PSU, and I haven’t overworked this computer at all. The computer only gets light usage.
Or maybe it’s a mobo issue, or something else?
It’s interesting how consistent the fix is. Just cycle the PSU switch off/on, then it starts perfectly each time.
I’m planning to start by getting a new PSU and putting that in, but wanted to get any thoughts here first.
Thanks for the help!