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Need schematics Dell Latitude 5540 Wistron ARCHES 15 DDR4 MB 223032 NH9Y8$LA

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    #1

    Need schematics Dell Latitude 5540 Wistron ARCHES 15 DDR4 MB 223032 NH9Y8$LA

    Hi, I need schematic or boardview, I need to know what IC is PU5310- eHFNG - what burned.

    Tnx!

    Click image for larger version Name: IMG_20250419-152204 1920.jpg Views: 70 Size: 437.7 KB ID: 3621051
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    #2
    PU5301 is right.It can be SY21138 or similar.

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      #3
      Well, seems to be - eH*** SY21138RHC (Global Part # for the SY8386RHC) , will try to order and replace it.

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        #4
        Update, parts arrived, but 3.3V rail is short. Thermal camera shows CPU-s PCH geting hot and it seems to be dead.
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