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EVGA GTX 1060 3gb blown mosfet

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    #1

    EVGA GTX 1060 3gb blown mosfet

    hi, i start saying i am a noob and maybe i am asking something really stupid

    i have a blown mosfet (q521) that burned around him every pins.

    I noticed , watching this boardview ( gtx 1060 evga 6gb)that these 4 pins followed a circuit on the left , may i ask you if i can fix everything using some pad strips and attach everything on the small copper line you can see on the photo ?
    Also, may i know what does this mosfet do?
    what is 12v_f/steer ?

    P.S. Sorry if i am asking something really stupid but really , i don t even know where to start
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    #2
    Re: EVGA GTX 1060 3gb blown mosfet

    Try to clean the area around the burnt area carefully and see if there are any circuit pads left if not it might not be repairable
    9 PC LCD Monitor
    6 LCD Flat Screen TV
    30 Desk Top Switching Power Supply
    10 Battery Charger Switching Power Supply for Power Tool
    6 18v Lithium Battery Power Boards for Tool Battery Packs
    1 XBox 360 Switching Power Supply and M Board
    25 Servo Drives 220/460 3 Phase
    6 De-soldering Station Switching Power Supply 1 Power Supply
    1 Dell Mother Board
    15 Computer Power Supply
    1 HP Printer Supply & Control Board * lighting finished it *


    These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

    1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
    2 Hem Saw Computer Stack Board

    All of these had CAPs POOF
    All of the mosfet that are taken out by bad caps

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      #3
      Re: EVGA GTX 1060 3gb blown mosfet

      Try looking up "burnt mosfet repair" on YT. Lots of videos deal with this issue, mosfet repair, pads rebuilding and how much grinding you must do to check if the lower layers are affected or not.

      https://www.youtube.com/watch?v=N5GO5Q9OlEc to get the idea. Solutions can be very "lateral".

      This guy did some nice jobs.
      https://www.youtube.com/@northwestrepair

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