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HIS Rx 570 IC model

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    HIS Rx 570 IC model

    hello guys.
    i have a RX570 gpu to repair. no display case
    there are no schematics available.
    i checked and one of mosfets has source and gate short to GND
    i think its pwm regulator is faulty. but i couldn't find the ic model based on its markins (A4C)
    can you help me identify the component model?
    the ic image is attached
    Attached Files

    #2
    Re: HIS Rx 570 IC model

    Originally posted by G3ntleman View Post
    hello guys.
    i have a RX570 gpu to repair. no display case
    there are no schematics available.
    i checked and one of mosfets has source and gate short to GND
    i think its pwm regulator is faulty. but i couldn't find the ic model based on its markins (A4C)
    can you help me identify the component model?
    the ic image is attached
    It could be an onsemi NCP81161 or NPC81146 ,both chips have the same pinout,comparing the datasheets they are the same,they just a different part number https://cdn.badcaps-static.com/pdfs/...d28a52a874.pdf https://cdn.badcaps-static.com/pdfs/...810f7d3873.pdf

    https://www.badcaps.net/forum/showpo...37&postcount=7
    .
    Last edited by SMDFlea; 05-05-2022, 07:57 AM.
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