Asus N550JV rev 2.1 motherboard ... no more power after shutdown...

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  • rui4892
    Senior Member
    • Mar 2017
    • 57
    • Portugal
    #1

    Asus N550JV rev 2.1 motherboard ... no more power after shutdown...

    hello forum
    I have this board on the bench... it works fine and ok when it is started for the first time and without RTC battery... then Windows works fine with all peripherals connected without any apparent problem... but when I give the order to turn it off it never turns on again... the voltage on the power key is stable at 3.3v and goes to 0 when pressed, this information reaches the IO on pin 110 correctly... the only way to turn the machine back on is to remove the battery and disconnect the charger.

    Thanks... Rui.

    Link to boardview --> https://www.badcaps.net/forum/troubl...50jv-boardview
    Last edited by SMDFlea; 09-24-2024, 12:47 PM. Reason: Link to boardview
    Tags: None
    • rui4892
      Senior Member
      • Mar 2017
      • 57
      • Portugal
      #2
      hello again, However, I bought the IO from a trusted supplier, but the symptom persists...so I need some clues...thanks
      Attached Files

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        • rui4892
          Senior Member
          • Mar 2017
          • 57
          • Portugal
          #3
          however, with the help of boardview I verify that the P_1VS8_PWRGD and 1.35V_PWRGD have a very low resistance (around 10 ohm) after turning off the machine. With the removal of the PU8300 the symptom of not turning it back on remains but with the removal of the PU8600 the machine stopped turning off or rather it turns off and then turns back on again, I have already ordered these components to be replaced, I hope for news soon.

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