Laptop keeps randomly powering off

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  • hp15ab
    New Member
    • May 2020
    • 4
    • India

    #1

    Laptop keeps randomly powering off

    Hey there!

    I have an HP 15 ab584tx. It was working totally fine until last week. Now, it doesn't turn on for more than a couple of minutes, sometimes less than a minute. It turns on and then, immediately turns off fully. All components turn off, even the power input port light goes off for a second, before coming back on. Sometimes it even makes it as far as the windows desktop screen and works fine for a minute or two, before randomly turning off again. It also sometimes gives me an overheating warning on boot(but doesn't really overheat, more info below).

    Here's what I've tried so far:

    Removing the battery, draining any static power and plugging in the AC cord.

    Opening it up and cleaning it fully, repasting the CPU and GPU.

    Systematically removing each component and testing(each RAM module in alternating slots, HDD, CMOS battery, DVD drive, display unit,WiFi card) without them, one by one.

    Entering the BIOS and letting it idle. (goes off after a couple of minutes here too)

    Checking the temps and fan air flow. (normal)

    Checked each cable for loose connection.

    Booting from a Live linux pen-drive.
    //
    Everything I've tried yields the same result: the laptop turning off after a couple of minutes. I checked the temps via HWMonitor, which I managed to somehow install before it shut off, it was around 45-60 degrees overall, nothing concerning. During another boot I managed to install CPUZ and check the hardware displayed and everything looked perfectly fine(showed both the iGPU and Nvidia GPU and all 16GB of RAM)There was no physical damage to the laptop either.
    When plugged in, it displays an orange light and a white light on the charger port for when the battery is inserted and when the battery is removed, respectively. For the brief moments that it stays alive, it does indicate charging/discharging etc. The charger light stays on. The only time it goes off is when it suddenly dies. At that moment, it goes off for a second before coming back on. I have not checked the voltage of the charger because I don't have an multi-meter. I tried flexing the cord at all points, but there is no disturbance in the output due to it whatsoever. HP also has a diagnostic test menu, and it passed the AC Adapter component test.
    I'm really lost as to what exactly is wrong with it. Since I'm in a high risk COVID zone, I can't go to any service centers for a long time. Any help/input is greatly appreciated!
  • qayyum786
    Badcaps Legend
    • Aug 2018
    • 1933
    • INDIA

    #2
    Re: Laptop keeps randomly powering off

    1) clean ME REGION

    2) CHECK THERMAL SECTION THROUGHLY
    ( CAPS & RASISTOR VALUE )

    Comment

    • hp15ab
      New Member
      • May 2020
      • 4
      • India

      #3
      Re: Laptop keeps randomly powering off

      Originally posted by qayyum786
      1) clean ME REGION

      2) CHECK THERMAL SECTION THROUGHLY
      ( CAPS & RASISTOR VALUE )
      thanks, I dont have a multimeter right now, but I'll try to get on it asap

      Comment

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