Acer E5-411

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  • maurovalero
    Senior Member
    • Sep 2018
    • 69
    • colombia
    #1

    Acer E5-411

    Dont turn on, have 3,3v in PWRBTN but dont have 3,3 on bios u21, and in coils PL7 y PL4 are shorted to ground, in pl3 5,1v pl2 3,4v, pl6 1,8, i dont have idea how continue the revision, I suspect the fault may be in pu11 or pu7, any sugg
    add bdv and shematic

    https://www.badcaps.net/forum/showthread.php?t=85245
    Last edited by SMDFlea; 06-11-2020, 02:00 AM.
    Tags: None
    • ktmmotocross
      Boardkiller
      • Feb 2014
      • 3582
      • slovakia
      #2
      Re: Acer E5-411

      pl7 is GPU core and pl4 PCH . looks like dead PCH section of processor. try to isolate that short with removing that coils

      dead PCH is very common on bga intel processors

        Comment

        • mcplslg123
          Badcaps Legend
          • Jun 2015
          • 7262
          • india
          #3
          Re: Acer E5-411

          Measure resistance on PL7 and PL4 in Ohms mode(Not in diode mode). Low resistance is quite normal on those lines but should not be zero.

            Comment

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