• inclementimmigrant@lemmy.world
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    8 days ago

    I mean it’s a fundamental design issue with how they link all of the 12V lines into a single line on the board itself. Unless Nvidia changes that as part of the reference drawings, you’re not going to be able to mitigate this.

  • RejZoR@lemmy.ml
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    8 days ago

    RTX 5070 is not pulling enough power to matter. Issue is with RTX 5090 that is so close to the power rating of the cable that every defenct in it can actually show up as failure.

      • RejZoR@lemmy.ml
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        8 days ago

        Thats so unlikely to happen the cable and connector would have to be really fucked up.

        • Lucy :3@feddit.org
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          8 days ago

          As NVidia proved, the connector and implementation themselves are fucked up enough

          • RejZoR@lemmy.ml
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            8 days ago

            Some RX 9070 series also use high power connector and so far there haven’t been any issues. Though they haven’t been around for as long as RTX 5000 series…

            • Lucy :3@feddit.org
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              8 days ago

              Is there proper load-balancing monitors on the GPU side? Considering most use 2/3*8-Pin, it probably. So there is max. 150W load on one cable.

            • Pup Biru@aussie.zone
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              8 days ago

              afaik the issue is the 50 series connects all those pins into a single point on the board. obviously this is fine in normal operation, because power is drawn through all pins evenly. if, however the plug isnt making good connection, that significantly increases resistance across 1 or more pins. in this situation, the card has no way of knowing, and continues to draw all the power it needs, but unevenly thus overloading the cables rating

              other designs connect the pins independently and measure the current across individual pins so they know if there’s a fault

  • drspod@lemmy.ml
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    8 days ago

    Reportedly, an updated 12V-2×6 power cable is implicated, as opposed to the older but closely related 12VHPWR cable, which is a worry.

    For the record, the card in question was a Zotac RTX 5070 model paired with a Seasonic Focus GX-750 power supply. It’s worth noting that it was the cable that suffered unambiguous damage here, not the graphics card or even, seemingly, the power connector or socket.

    • Sturgist@lemmy.ca
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      7 days ago

      It’s worth noting that it was the cable that suffered unambiguous damage here, not the graphics card or even, seemingly, the power connector or socket.

      This says to me, a dumbfuck stone mason with limited electrics experience, it’s possibly an issue with the cable. Though the issue with the cable may never have presented itself if it weren’t for how Nvidia, apparently, routes all 12v lines into a single line on the board.