Dell vostro 5490 MB 18778-1

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  • Dowhile
    Member
    • Sep 2020
    • 28
    • Italia
    #1

    Dell vostro 5490 MB 18778-1

    Hi guys. when i power on this mb laptop restart 2 times then led blinks 2 amber and 1 white that means cpu failure according to service manual.
    i ve already tried to reflash bios but same issue. I ve measured 1v core power rail but the voltage is not present. Resistance to gnd is 0.2ohms ( gnd to gnd is 0.0 with multimeter). i wanna ask you if this is normal or maybe i have a short on this line or i have to check something else. Thx a lot.

    http://www.cambiturno.somee.com/img/1650719035558.jpg

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    • Dowhile
      Member
      • Sep 2020
      • 28
      • Italia
      #2
      Re: Dell vostro 5490 MB 18778-1

      Please admins delete this thread

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