A2251 burnt ics on logic board

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  • marshmallows
    New Member
    • Oct 2023
    • 5
    • Canada
    #1

    A2251 burnt ics on logic board

    I have a A2251 2020 MBP with 4 Thunderbolt Ports. It has been working fine for some time and I woke up one morning to an unresponsive notebook

    Opened it up and it looks like there are several ICs, which I think are capacitors burnt out.

    How do I go about fixing this? I have repaired many iPhones in the past, but never a laptop motherboard. Do these capacitors just fail on a MBP? In which case, I assume I could just replace them and be good to go. Or does this indicate an upstream failure?

    2 Photos
    Tags: None
    • marshmallows
      New Member
      • Oct 2023
      • 5
      • Canada
      #2
      Ok I got the boardview of this machine and looks like they are the PPBUS_G3H Capacitors. The PDF shows them as "OMIT_TABLE" and "CRITICAL", and so am I right to assume that they are absolutely needed?

      Also these are 16V 33uF. What can I replace them with?

      Will these work - https://leeselectronic.com/en/produc...-5-mpc725.html
      Same as these I guess - https://www.digikey.ca/en/products/d...X336M035ATE175

      Just wondering from a size pov

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