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RTX 3080 FE Identifying capacitor

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  • Prolog
    New Member
    • Dec 2024
    • 6
    • Australia

    #1

    RTX 3080 FE Identifying capacitor

    Hi people, I hope this is the correct spot to post this, I'm new to the forum.

    I have an RTX 3080 Founders Edition which has a burnt up capacitor (it was in parallel with another capacitor which appears damaged too), so I am hoping to be able to identify the capacitor values and order replacements.

    I hope these photos make it clear which component I am referring to:
    Click image for larger version

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ID:	3519409Click image for larger version

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ID:	3519410 (yes, the soldering is a bit botched from removing the blown one, I know)

    I have found the board schematic (attached), but there does not seem to be a boardview available. I have never really had to read schematics before, so I am a bit overwhelmed by it and haven't been able to figure out the capacitor values based on the schematic, but according to this video (https://youtu.be/THMukcOzB8g?si=vO7_O-d4__kqye8j&t=1311) the large capacitors next to it are output filtering capacitors. I hope someone is able to help me out here.

    Thanks in advance.

    P.S. The reason I found the burnt capacitor in the first place is that the gpu is having issues where it boots up ok, but under a little bit of load the fans spin up a lot and it heats up quite a bit, before eventually crashing. There is also a black burn mark on the gpu heatsink above above these capacitors. I am hoping replacing these capacitors fixes the issue, but let me know if that is unlikely to be the root cause.
  • noname2024
    Badcaps Veteran
    • Aug 2024
    • 325
    • AV Computer Center

    #2
    12V_EXT8_NVVDD_PH9_VIN
    CAP PL 270UF/16V 6.3*8 20%

    Comment

    • Prolog
      New Member
      • Dec 2024
      • 6
      • Australia

      #3
      Thanks for the quick response noname2024. I am assuming that 6.3*8 is referring to the dimensions in mm. However the component I am looking for is actually closer to 1mm in length and less in width. Is the capacitor you mentioned an equivalent replacement but in a different package?

      Comment

      • Prolog
        New Member
        • Dec 2024
        • 6
        • Australia

        #4
        ^ could anyone provide a second opinion?

        Comment

        • ktmmotocross
          Boardkiller
          • Feb 2014
          • 3725
          • slovakia
          • hard-enduro

          #5
          there are MANY other capacitors on that line. u dont need them or throw in any of suitable package.

          Comment

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