+1 vote
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Last night I turned the PC off via the start menu button. Turned off fine, only after that it started to turn on and off by itself after 4-5 seconds, without even loading BIOS. Today I checked - same situation. The PSU checked with the "paperclip" method, it is working stably. Tried disconnecting everything, up to the CPU - nothing changes. Hulp, guys, how can I fix it and what can the problem be? My computer is new, not even a month old. I have nothing to work with:
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Artem Unfortunately, I don't have a suitable power supply to test it at hand.
And if the problem were in the processor, running without it would make a difference, I think.
And yes, the button is definitely not stuck. I'll wait for Monday and take it to the service, I guess.
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Vanya Petilo Then replace the components with ones that are known to be in good working order.
Take a good PSU - plug it in and see.
Check the processor on a working motherboard.

P.S. You sure the power button isn't stuck? Disconnect all wires from the system unit to the motherboard, except the wires from the PSU.
Turn it on by closing the contacts with a screwdriver.
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Vanya Petilo turn everything off.
Motherboard, processor, and one memory stick, and a power supply.
Reset the bios to default with a jumper on the motherboard.

Once again, no leftovers like HDDs, SSDs, monitors, mice, and other keyboards.

Then connect the speaker and try to turn it on, if it does not work remove all the memory and check again.
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Artem , no change. Stable silence for 6 seconds, cooler operation and shutdown. 6 seconds in the off state and again the above mentioned.
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There was such a problem - replacement of the motherboard

1 Answer

0 votes
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Apparently, the power button is stuck.
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MichaTronic I tried to turn it on with the weight, so that the motherboard is not in contact with anything - it's the same. That leaves the BIOS, I'll look for the docs
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Sorry, didn't see it. I read it. Another possibility is that something got between the motherboard and the case wall and shorted out. First you have to rule out any mechanical causes. You don't have a jumper on the BIOS reset pins, do you? May be the way motherboards test the memory - turn on, determine parameters and restart already in the right mode.
If the motherboard turns on and off by itself with all the peripherals turned off and it's not the memory or the video, and even the speaker doesn't beep, then it must be the motherboard. And most likely the BIOS. You need to look in the documentation of this model how to restore BIOS.
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Assumed in the comments to the question, checked - not her.
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MichaTronic , thanks for your help).
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Another possibility is that there is something wrong with the PSU.
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