I don't buy the whole "user error" or "it wasn't plugged all the way in" argument. I think that's just the cooperate story they spun up to try and save face. I think the 4090 simply draws more current than the tiny pins in the plug can handle. The tiny pins acting as a bottleneck of sorts.
So let's chuck in some fuses in the 6 Active conductors to break the connection should an excessive draw occur. In this case if one fuse goes, it will cause the rest of the fuses to to go in a cascading fashion as extra current gets redistributed in the remaining lines.
I will need to replace 6 fuses should this happen BUT at least I won't need to send my card off again for repairs and most importantly – possibly prevent my house from burning down.

Stay safe you lovely people

37 Comments

  1. New_Copy1286

    Brother in christ. WTF ARE YOU DOING? Lol

  2. AugmentedKing

    What psu were you using when the burn event happened?

  3. MahaloMerky

    POV: Electrical Engineer with free will

    Lmao

  4. Daiesthai

    I agree with you. Just bad design and Nvidia trying to reinvent the wheel.. it didn’t need to happen.

    Would be interesting to see how many fuses blow over the next few months.

  5. BigSmackisBack

    I got a DC clamp meter which not long ago would have been stupid expensive (vs AC which are CHEAP), for 30 bucks I tested my 6 12v cables were sharing an equal load. Stupid we have to do these crazy things to keep our hobbies safe.

    Yours looks more expensive but pretty damned fool proof, only one question and its a big one, if one fuse pops the additional current surges through the others and i guess once one pops they all pop – couldnt you just be using 10amp circuit breakers? Or is that too expensive?

  6. Redead31

    Someone correct me if I am wrong, but with a loose connection (aka the pins) doesn’t the resistance increase and not the current? Meaning the fuses do nothing while the pin still melts due to the heat from the added resistance? Unless it short circuits

  7. giantfood

    Uograde those to resetable fuses. That way you can just go, crap, fuse blown. Turn off system, reset fuse. Resume gaming/modify settings.

  8. sp3kter

    Now make more and sell them. I’ll take 5% for my suggestion TYVM

  9. tailslol

    Actually hiding that between an extension might work.

    With resettable fuses.

  10. StrictManufacturer11

    Thats some lovely Engineering work mate

  11. HolzwurmHolz

    ?

    But now when one fuse fails, the other wires will get even more current and fail as well…

  12. shadowmage666

    Well, I mean it looks like it will work

  13. SultanOfawesome

    Doesn’t one of those fuses breaking mean that the rest follow soon after?

  14. ElJefe0218

    I knew it would be a problem when they went from 24 pin power down to 12 pin and increased the watts.

  15. DiamondHeadMC

    I would use 8 amp fuses to be safe

  16. Ser_Sunday

    I need to know if this works out or not, for science.

  17. If this is the solution then I’m buying stocks in fuses.

  18. Sevulturus

    Question, actual legit question.

    Do you have indication that the fuses have popped? Otherwise it’ll likely just start pulling more current through the remaining wires and popping those fuses one at a time, until your card just stops working.

    Better than having it light on fire… but I’d consider fuse holders with led indication.

  19. redspacebadger

    If only NVidia allowed board partners to put their own additional power circuitry on the board, none of this needed to happen – I recall a comment suggesting NVidia did not let board partners do that when they asked to do so.

  20. khrossjointz

    All this just to not but an AMD card……

    /s

    I love the insanity of this though, keep us posted OP, I want to see updates when they blow

  21. External_Try_7923

    Consumers shouldn’t need to construct such solutions to reduce the collateral damage from the manufacturer’s engineering fuck-up and marketing cover-up.

  22. Hissingfever_

    Even if it is “user error” it’s still up to the manufacturer to reduce the possibility of such a thing

  23. sarsilog

    We’re really needing overcurrent protection on gpu’s now like they’re ac’s

  24. IrreverentCrawfish

    That’s brilliant. Sad that Nvidia’s engineers make this sort of homebrew solution necessary in the first place. $2500 GPUs shouldn’t be flammable to begin with.

  25. gingerbread_man123

    Some serious chaotic good vibes here.

  26. Please keep us all updated on if this works!

  27. RottenPingu1

    Another work around of a NVIDIA failure.

  28. cookiesphincter

    This is bs, we need a class action lawsuit going for this issue

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