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lenovo g50-30

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    lenovo g50-30

    aclu9/aclu0 rev 1.0

    when pressing power it will work for exactly 38 secons and completely shutts off.
    with and without battery the same

    #2
    Re: lenovo g50-30

    it will hut down exactly after 40 seconds and not 38 as i mentioned:
    when i try to boot it again, the same time it will take to shutoff
    i changed ram, reset bios, with no success

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      #3
      Re: lenovo g50-30

      Known good power supply with the proper power rating?
      Maybe try clean ME region BIOS.
      OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

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        #4
        Re: lenovo g50-30

        I found the problem here... Pin 1 must be 3v but it has no volts. The ic is u3901 which is sensor.
        Attached Files
        Last edited by mazloum; 07-15-2019, 01:17 PM. Reason: Un suffucient describes

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          #5
          Re: lenovo g50-30

          Is there any alternative for this ic?

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            #6
            Re: lenovo g50-30

            Is there any alternative for this ic?
            I need to give it 3v but it is very small and cannot solder any wire there

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              #7
              Re: lenovo g50-30

              Check pu701.

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