Acer Aspire E5 573G , only 100mA and nothing else when powered on

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  • Assembler
    Member
    • Dec 2017
    • 14
    • Italy
    #1

    Acer Aspire E5 573G , only 100mA and nothing else when powered on

    HI,i'm going crazy with this board
    DA0ZRTMB6D0 rev D

    i read everything on badcaps about issues of this board...
    replaced eeprom, reflashed bios and EC...
    removed the GPU with the uma conversion instructions (already used on other acers like this one)

    all voltages are present.. 3.3V 5V 1.7V 1.1V 19V etc ...

    when poweringon the board the blue led lights up, and there is a 100ma comsumption
    looking with the DSO the eeprom seems that there is some sort of communication

    the battery is charging

    Click image for larger version Name: 20250916_170542.jpg Views: 0 Size: 774.2 KB ID: 3726284

    the motherboard can be shutted down using the power on pins on the keybaord connector...

    the only thing i'm worried about is the CPU voltage... 1.67.. with some strange spikes on the end of teh waveform

    Click image for larger version Name: 20250916_170136.jpg Views: 0 Size: 637.9 KB ID: 3726285
    Click image for larger version Name: 20250916_170122.jpg Views: 0 Size: 644.2 KB ID: 3726286also the lid sensor is good.... and the CPU inductor become warm (because of the spike?)

    thank you for any help!
    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 14503
      • Canada
      #2
      1v67 on the cpu rail? To me, it seems very high.

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