Lenovo ThinkPad E580 EE480/EE580 NM-B421 issue

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  • neohimura
    New Member
    • Aug 2023
    • 0
    • Malaysia
    #1

    Lenovo ThinkPad E580 EE480/EE580 NM-B421 issue

    hi,
    power button blinks 3 times and then stays ON when I connect the power adapter. The num lock/caps lock led flickers once and then OFF.
    When I press the power button, the power button light turns ON but nothing else happens. No display, fan not turning, cpu/gpu doesn't heat up.
    Tried flashing a few BIOS from the forum (not my cleaned BIOS dump) but no luck. No sure if my bios is corrupted. Which part of the board should I check?


    E580 i7 8th gen
    Type: 20KS-CTO1WW

    Board model: EE480/EE580 NM-B421 Rev:1.0
    Tags: None
    • chaoui
      New Member
      • Oct 2011
      • 9
      #2
      no power

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