HP 250 G3 [LA-a992P] System Temperature (90D) error

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  • classicandy
    Badcaps Veteran
    • Apr 2018
    • 308
    • Nigeria

    #1

    HP 250 G3 [LA-a992P] System Temperature (90D) error

    Hi all

    I have this HP 250 G3 [LA-a992P] that sometimes shuts down and when I turn it on again, it shows this "System Temperature (90D), Thermal Shutdown has occurred" error.

    The system doesn't get hot abnormally, fan is working well. Fan speed increases after sometime and shuts down.

    I seem to suspect a faulty thermal resistor but not sure.

    Here is the schematic diagram

    https://www.badcaps.net/forum/attach...1&d=1464656128
    Last edited by classicandy; 08-19-2020, 05:08 PM. Reason: Typo error
  • ktmmotocross
    Boardkiller
    • Feb 2014
    • 3578
    • slovakia

    #2
    Re: HP 250 G3 [LA-a992P] System Temperature (90D) error

    if u dont have that error on cold start than u must have thermal problem.

    check heatpipe for leakage

    Comment

    • classicandy
      Badcaps Veteran
      • Apr 2018
      • 308
      • Nigeria

      #3
      Re: HP 250 G3 [LA-a992P] System Temperature (90D) error

      Originally posted by ktmmotocross
      if u dont have that error on cold start than u must have thermal problem.

      check heatpipe for leakage
      heatpipe has NO leakage. Can't it be that the system is having incorrect readings from the therm sensor or so?

      I've checked the value on a thermistor near PUZ2 and its reading is similar to 2 other same type of motherboard.

      Also, sometimes, the mouse touchpad and the keyboard can just seize to respond, but external mouse would work at that point.

      Comment

      • lapfix
        Badcaps Legend
        • Mar 2020
        • 2715
        • my workshop

        #4
        Re: HP 250 G3 [LA-a992P] System Temperature (90D) error

        Maybe this can help you to understand more : https://www.youtube.com/watch?v=2gnUvdP7fTk

        Comment

        • classicandy
          Badcaps Veteran
          • Apr 2018
          • 308
          • Nigeria

          #5
          Re: HP 250 G3 [LA-a992P] System Temperature (90D) error

          Originally posted by lapfix
          Maybe this can help you to understand more : https://www.youtube.com/watch?v=2gnUvdP7fTk
          Thanks for this.........

          Audio in Hindi, hard to understand but would try to study it somehow.....

          Comment

          • lapfix
            Badcaps Legend
            • Mar 2020
            • 2715
            • my workshop

            #6
            Re: HP 250 G3 [LA-a992P] System Temperature (90D) error

            I know for the hindi language , me too i can't understand but his diagnostic is interesting and informative

            Comment

            • mcplslg123
              Badcaps Legend
              • Jun 2015
              • 7262
              • india

              #7
              Re: HP 250 G3 [LA-a992P] System Temperature (90D) error

              R62 has thermal i/o protection whereas A992 doesnt have it. So the two scenario's are different. Check PROCHOT# signal.

              Comment

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