asus n53j weird problem.

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  • luke10050
    Badcaps Veteran
    • Mar 2013
    • 209
    • Australia

    #1

    asus n53j weird problem.

    I have an asus n53j (first gen i5, nvidia gt425m) that initially would not turn on at all, and on the one occasion it did work it froze in bios after about 30 seconds. I had the random idea to solder a 470uF cap near the cpu as there were a large amount of blank spaces for capacitors and the system now boots reliably and is rather bullrtproof. However, if an intensive task is run for more than ~2 minutes, be it a game like skyrim or something like 3dmark or prime95, the laptop will randomly shut down and refuse to start for about 30 mins (as if something is cooling down) and then will work normally. It is not the cpu or gpu as under all conditions they idle at around 80 degrees max. Tested the ram and it seems fine too. The results from the capacitor lead me to believe it is a power related issue as there are a few FET's missing from thr board and a few unpopulated capacitor pads.
  • ktmmotocross
    Boardkiller
    • Feb 2014
    • 3573
    • slovakia

    #2
    Re: asus n53j weird problem.

    u did not remove the bad cap so there are some problems

    Comment

    • luke10050
      Badcaps Veteran
      • Mar 2013
      • 209
      • Australia

      #3
      Re: asus n53j weird problem.

      Most caps are tantulum, from what i understand they dont exactly go bad, plus, its more like something is heating up and going out on some kind of thermal shutdown, and if they do go bad they generally do so in quite a visible way
      Attached Files
      Last edited by luke10050; 10-30-2014, 08:38 PM.

      Comment

      • hazardus
        Senior Member
        • Apr 2014
        • 105
        • USA

        #4
        Re: asus n53j weird problem.

        Not always. I'd change all tantalum caps around the cpu.

        Comment

        • luke10050
          Badcaps Veteran
          • Mar 2013
          • 209
          • Australia

          #5
          Re: asus n53j weird problem.

          Okay, i'll give it a go then, might also see if i can get a thermal camera... depends on my luck

          Comment

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