Computer shut of and wont turn on.

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  1. Hallon
    Posts : 8
    Windows 7 64bit
       New #1

    Computer shut of and wont turn on.


    Hi, today my computer turned off randomly and i cant get it to start again.
    When i try to turn it on the fans doesen't start but a blue light in my computer is on as usual. Its like the computer is on, exept the fans. My monitor isent responding either.
    This have happened a few times this week but i have had it going again after i have turned the power source of and on. Could it be something with the smart fan?
    And if, how to i turn it on/off without starting the computer.

    Sorry for my bad knowlegde.
      My Computer
    Quote Quote

  3. TVeblen
    Posts : 6,292
    Windows 7 64 Bit Home Premium SP1
       New #2

    Given what you have told us, my first instinct is that the power supply has failed.

    This would be particularly true if you can disconnect the power cord from the power supply for a while (15-30 minutes) and then when you plug it back in the PC will start. That is a classic symptom of a bad capacitor.

    If you have not been getting any system errors, warnings, or any other indications of a failing device then I would first try replacing the power supply.

    If you can borrow one from another computer to test with that would be best.
      My Computer
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  4. Hallon
    Posts : 8
    Windows 7 64bit
    Thread Starter
       New #3

    Hallon said:
    Hi, today my computer turned off randomly and i cant get it to start again.
    When i try to turn it on the fans doesen't start but a blue light in my computer is on as usual. Its like the computer is on, exept the fans. My monitor isent responding either.
    This have happened a few times this week but i have had it going again after i have turned the power source of and on. Could it be something with the smart fan?
    And if, how to i turn it on/off without starting the computer.

    Sorry for my bad knowlegde.
    TVeblen said:
    Given what you have told us, my first instinct is that the power supply has failed.

    This would be particularly true if you can disconnect the power cord from the power supply for a while (15-30 minutes) and then when you plug it back in the PC will start. That is a classic symptom of a bad capacitor.

    If you have not been getting any system errors, warnings, or any other indications of a failing device then I would first try replacing the power supply.

    If you can borrow one from another computer to test with that would be best.
    I tryed that, it dident work.. or what do you mean with changing the power supply?
      My Computer
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  6. TVeblen
    Posts : 6,292
    Windows 7 64 Bit Home Premium SP1
       New #4

    Mmmm. Let me guess - this is a laptop?

    Changing the power supply applies to a desktop computer. It is the literal removal of the old power supply unit and replacing it with a new one. Not applicable if you have a laptop.

    A laptop uses a battery and an external power supply/charger. The symptom you describe can be caused by a failing battery. To test, remove the battery from the laptop and plug in the PS/charger and see if it will run that way.

    If it does then you need a new battery.
      My Computer
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  7. Hallon
    Posts : 8
    Windows 7 64bit
    Thread Starter
       New #5

    It isen't a laptop. Sorry for my bad knowlegde of computers, this is just driving me insane You mean the little box in the corner of the inside? Where the powercable is connected to?
      My Computer
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  8. Hallon
    Posts : 8
    Windows 7 64bit
    Thread Starter
       New #6

    They are both laptop thing? I still dont have a laptop.
      My Computer
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  10. TVeblen
    Posts : 6,292
    Windows 7 64 Bit Home Premium SP1
       New #7

    Yes, in a desktop computer the power supply is typically here:

    Computer shut of and wont turn on.-capture-1.jpg

    And a typical power supply looks like this:

    Computer shut of and wont turn on.-capture-2.jpg

    However, given your lack of knowledge concerning PC hardware I would strongly advise you to find someone who has done this kind of thing before, or take the PC to a repair shop. Replacing a power supply is relatively easy, but there are a lot of connections that have to be made just so.
      My Computer
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  11. Hallon
    Posts : 8
    Windows 7 64bit
    Thread Starter
       New #8

    Thank you, i will probebly give it to a repair shop as you said. But i might look into changing the power supply if i find another.
      My Computer
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  12. Layback Bear
    Posts : 25,847
    Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
       New #9

    Please fill in completely your ((My System Specs)) it will help us help you.
      My Computer
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  13. Hallon
    Posts : 8
    Windows 7 64bit
    Thread Starter
       New #10

    Dont realy know what all this is but yeah here it is:
    Kab CM Elite 341 Inet
    CPU Core i3 2100
    HDITB Samsung
    Corsair 4BG
    MK MSI H67EMA-E45
    GK PCle SP GF GTX 450*
    PSU Corsair CX 500W
    Window 7 64 bit
      My Computer
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