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  • bibinskii
    New Member
    • Jun 2022
    • 7
    • Indonesia

    #1

    MSI Modern 14 no post

    I got this MSI Modern 14 laptop from a friend and it is dead.

    The model number is: MSI Modern 14 B11SB (MS-14D2)
    He told me that this laptop suddenly died on its own.

    No power indicator light. But there's a battery charging light. If I press the power button I notice the charger brick clicking so I suspect something is still going on with the laptop trying to boot.

    I do have a multimeter check all resistance seems okay. The fuse is also not shorted.

    5VALW is present.
    3VALW is present.

    The strange thing is 3VSUS and 5VSUS are present when I press the power button only for a few seconds, I'd say about 10 seconds. Then it drops right back to 0.

    I suspect the SIO ENE KB9548GF is bad, but I don't have any other theory to support this.

    I've also noticed some corrosion along the audio jack, but that wouldn't be too much of a problem right now, right?
  • alexfts20
    Member
    • Jun 2023
    • 30
    • Kyrgyzstan

    #2
    bibinskii This type of symptomatology can arise from:
    1. A weak or inadequate power supply that is unable to provide sufficient current to boot up the laptop.
    2. The presence of a short circuit in the secondary power rail(s), which becomes apparent after pressing the power button.
    The second option is more probable, especially considering the potential for water damage.

    Comment

    • bibinskii
      New Member
      • Jun 2022
      • 7
      • Indonesia

      #3
      Originally posted by alexfts20
      bibinskii This type of symptomatology can arise from:
      1. A weak or inadequate power supply that is unable to provide sufficient current to boot up the laptop.
      2. The presence of a short circuit in the secondary power rail(s), which becomes apparent after pressing the power button.
      The second option is more probable, especially considering the potential for water damage.
      Any ideas on what rail should I check?

      Comment

      • alexfts20
        Member
        • Jun 2023
        • 30
        • Kyrgyzstan

        #4
        bibinskii Begin by conducting a visual inspection of both sides of the board under a microscope to identify and replace any corroded components. Following that, proceed to measure the resistance on the secondary power rails. As a point of reference, the typical resistance values for 3VSUS and 5VSUS generally exceed several kilohms.

        Comment

        • mcplslg123
          Badcaps Legend
          • Jun 2015
          • 7262
          • india

          #5
          Besides 3V/5V SUS lines, do check 1.8V ALW rail also.

          Comment

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