Lenovo G50-70 power on but no display and fan not spinning

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  • mondogen
    New Member
    • May 2017
    • 5
    • Italy
    #1

    Lenovo G50-70 power on but no display and fan not spinning

    Hi everybody, I'm a beginner and I've got a Lenovo G50-70 with NM-A271 rev 1.0 mobo.
    It powers on BUT:
    * no display
    * fan not spinning
    * power led is on and battery led too (if inserted)
    * no power consumption without battery, with battery 0.27A
    * no shorted coil to ground
    * +3VALW, +5VALW and +3VALW_PCH are present
    * 3.3V on bios pin 1 is present
    * 1.9V on PL302 coil
    * I tried to flash bios with external programmer (CH341A) e nothing changed.
    Any suggestions?
    Tags: g50-70, lenovo, motherboard repair, no display, troubleshooting
    • mcplslg123
      Badcaps Legend
      • Jun 2015
      • 7262
      • india
      #2
      Check SUSP#

        Comment

        • mondogen
          New Member
          • May 2017
          • 5
          • Italy
          #3
          SUSP# is 0V with power on and off.

            Comment

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