How can I find this chip equivalent?

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  • adigrf
    New Member
    • Jun 2025
    • 5
    • romania

    #1

    How can I find this chip equivalent?

    Hello! I saw on my motherboard DAG77MB18C0 rec C that I have a burn chip and I also found a similar one in good shape but I am having troubles recognizing and finding it online in order to replace it.
    What I can read is: DN46AP 22cf 1000 and Gemini is telling me it is a MOSFET by On Semiconductor model NVMFD5c466n
    Do you think this is real ?

    The laptop is still starting but I dont want to use it until I replace that. Based on the images, do you think I will succed with a profesional electronic technician?

    Click image for larger version

Name:	20250622_075338.jpg
Views:	90
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    Attached Files
  • Sephir0th
    Badcaps Legend
    • Oct 2020
    • 1262
    • Germany

    #2
    It is FDMS3664S
    Last edited by Sephir0th; 06-22-2025, 02:53 AM.
    FairRepair on YouTube

    Comment

    • Sephir0th
      Badcaps Legend
      • Oct 2020
      • 1262
      • Germany

      #3
      Picture upload is very buggy right now. Tried again...
      Attached Files
      FairRepair on YouTube

      Comment

      • adigrf
        New Member
        • Jun 2025
        • 5
        • romania

        #4
        Thank you, sir! Based on your experience, do you think I will be able to fix it? I can say that a 20years old electronics technician will help me to replace it.

        Comment

        • Sephir0th
          Badcaps Legend
          • Oct 2020
          • 1262
          • Germany

          #5
          It's a question of skill. I can't tell at what skill level you coukd work. And Nobody cann tell how it looks underneath before you have actually removed the burned Mosfet. In worst case it needs serious and complicated approaches, like drilling to remove shorts and rebuild of the tracks. And even then it is still possible that the GPU is already fried, since you are working on the GPU Core supply here.
          FairRepair on YouTube

          Comment

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