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I encountered a strange problem with my computer a few days ago. My computer suddenly turned off, then turned on again, then, after 1-2 seconds it restarted again, and it got stucked. The screen didn't turn on, the keyboard's backlights didn't light up, and it didn't react to power, or reset buttons. Now when I turn it on, it restarts after 1-2 seconds, and then gets stucked. The fans are spinning like the CPU is not in use, the PC is working seemingly, but it is "freezed".

Unfortunately I didn't see what happened on the screen before it shut down for the first time, I was away, only heard what's happening.

What can cause this kind of behavior?

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  • Try starting with a bootable USB. If it does not start, get it serviced at a local ship.
    – John
    Nov 8, 2022 at 16:06
  • I can't access anything related to software right now, there's no input, and no output.
    – Tigers
    Nov 8, 2022 at 16:15
  • Get the system serviced
    – John
    Nov 8, 2022 at 16:16
  • Problem solved The PSU's cable, which supplies power to the motherboard's upper part, around the processor, has fallen out. I noticed an unplugged cable when I was putting back the videocard (after cleaning it), but I didn't notice that a cable is missing from next to the processor.
    – Tigers
    Nov 8, 2022 at 17:05
  • 2
    I’m voting to close this question because No question left to answer
    – John
    Nov 8, 2022 at 20:59

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