Lenovo P50 power-on issue

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  • palady
    Member
    • Jan 2014
    • 20
    • si
    #1

    Lenovo P50 power-on issue

    Hi,

    Lenovo P50
    MB: BP500, NM-A451, VER 1.0

    Issue: won't start. Power LED turn on for 1 sec.
    I check rails, they're all work a short time, looks fine. Only GPU reg. is silent. EN pin is 0V.
    I didn't find any shorts corrosions, mechanical demages, etc. Any sugestion?

    I hope the CPU is not dead

    Schematic and boardview -> https://www.badcaps.net/forum/troubl...96#post3242496

    Last edited by Vesko356; 03-26-2024, 06:14 AM. Reason: Attached schematic and boardview removed and replaced with link
    Tags: None
    • piernov
      Super Moderator
      • Jan 2016
      • 4435
      • France
      #2
      Re: Lenovo P50 power-on issue

      CPU VCore ok?
      Tried known good compatible RAM?
      Tried to flash the BIOS?
      OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

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