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    NVIDIA-Bottom-POSCAP-vs-MLCC-IgorsLAB-1200x351.jpg

    There have been more and more reports circulating around the internet over the last few days reporting that a wide range of Nvidia RTX 3080 and 3090 graphics cards are experiencing crashes to desktop while gaming. A investigation by the igors Lab website has found that the issue may be caused by bad power delivery due to the type of capacitors some third party manufacturers have used in their production. It is theorised that when boosting past 2.0 GHz clock speeds, cards that have excluded MLCC capacitors, Multi Layer Ceramic Chip Capacitors, are more prone to crashes. Teardowns have shown that some cards in the series from third parties only use cheaper POSCAP style capacitors (Conductive Polymer Tantalum Solid Capacitors) on the back of the GPU. Nvidia's founders edition card and more high end cards use a mix of the two types of capacitors. It is being speculated that just having one MLCC capacitor out of the six capacitors on the back of the GPU can negate crashes completely.

    Most third party manufacturers have not yet commented on the issue. But on their forums EVGA released the following statement which pretty much confirms the theories that have been circulating.

    "During our mass production QC testing we discovered a full 6 POSCAPs solution cannot pass the real world applications testing. It took almost a week of R&D effort to find the cause and reduce the POSCAPs to 4 and add 20 MLCC caps prior to shipping production boards, this is why the EVGA GeForce RTX 3080 FTW3 series was delayed at launch. There were no 6 POSCAP production EVGA GeForce RTX 3080 FTW3 boards shipped.

    But, due to the time crunch, some of the reviewers were sent a pre-production version with 6 POSCAP’s, we are working with those reviewers directly to replace their boards with production versions.
    EVGA GeForce RTX 3080 XC3 series with 5 POSCAPs + 10 MLCC solution is matched with the XC3 spec without issues"


    What does this mean for people who already have received their cards? There has been no word regarding a recall just yet. But If you are experiencing crashes a slight underclock may help. Likely some kind of BIOs upgrade to affected cards will utilise a similar fix to patch the problem, but will disappointingly slow down your cards boost clock in the process.

    For those like myself who have their card on pre-order if you can confirm your chosen card has MLCC capacitors you should be relatively safe. If your card only contains POSCAP capacitors you would be better off cancelling your order, and waiting to see if this issue is fixable without underclocking or having a product recall.

    :arrow: Link to Igors Lab Article on the Issue
    :arrow: EVGA Forum Statement
     
    renjiVII, Red771, console and 25 others like this.
  2. Discussion (82 replies)

  3. Bladexdsl

    Bladexdsl ZOMG my posts...it's over 9000!!!
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    this is why you don't buy these day one . let the guinea pigs pay their ridiculous prices first and be the beta testers :P
     
    MushGuy, weatMod, Red771 and 40 others like this.
  4. Foxi4

    Foxi4 Cynical Absurdist
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    Yeah, I'm still waiting for the new Ryzens before I go card shopping, by that time they should work out the kinks. Sucks to pay hundreds of dollaridoos to be a beta tester though. I wonder what the final DOA rate will be.
     
  5. MohammedQ8

    MohammedQ8 GBAtemp Advanced Fan
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    Omg I was going to buy 3090 or 3080 now I will wait for titan or 3090 ti

    — Posts automatically merged - Please don't double post! —

    Why intel still perform better than amd with it is extra cores ?
     
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  6. spectral

    spectral GBAtemp Advanced Fan
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    Probably pretty much every card with the cheaper components. The most likely thing they'll do is release a new BIOS for the cards that caps the maximum core speed under where the problem occurs.
     
  7. TR_mahmutpek

    TR_mahmutpek medic
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    And people will still blame amd for bad drivers..
     
  8. spectral

    spectral GBAtemp Advanced Fan
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    To be somewhat fair this is a hardware not software issue. Also Nvidia's own Founders Edition Cards don't have the problem. Its only cards from some other manufacturers that used cheaper components.
     
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  9. MohammedQ8

    MohammedQ8 GBAtemp Advanced Fan
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    ahaa ok
     
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  10. Foxi4

    Foxi4 Cynical Absurdist
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    I don't know about that, price is not always an indication of quality. After early embarrassments MSI's x570 Tomahawk is effectively the best x570 mobo below the $600 tier and it's in the budget range. When it comes to components it's good to look at what you buy rather than pay for the brand.
     
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  11. ZoNtendo

    ZoNtendo GBAtemp Advanced Fan
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    kinda want to see rdna2 to have a better card than the 3080 just to see nvidia frustration
     
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  12. spectral

    spectral GBAtemp Advanced Fan
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    I agree, however it has been identified as mentioned in the OP that cards that use 6 of the cheaper parts are the ones with the problem. Others that use 4 and then 2 that are more expensive/difficult to produce don't. I specifically meant cards with those specific cheaper components, not cheaper cards in general.
     
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  13. Foxi4

    Foxi4 Cynical Absurdist
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    Ah, thanks for the clarification, I get'cha!
     
  14. TR_mahmutpek

    TR_mahmutpek medic
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    This is even worse lol
     
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  15. Silent_Gunner

    Silent_Gunner Lost Wanderer Who Sees No Evil
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    While it wasn't crashing, I'm getting some GTX 970 vibes here for those who remember that fiasco!
     
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  16. deSSy2724

    deSSy2724 GBAtemp Fan
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    Thank you Alpha, Beta, Zeta testers...... stop preordering things for once.
     
    64bitmodels, Ra1d, Bladexdsl and 2 others like this.
  17. Silent_Gunner

    Silent_Gunner Lost Wanderer Who Sees No Evil
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    In other words, stick with the Founders Edition cards.
     
  18. Keyofdestiny

    Keyofdestiny Member
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    nvm
     
    Last edited by Keyofdestiny, Sep 26, 2020
  19. linuxares

    linuxares I'm not a generous god!
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    Asus be like... what kind of cheap caps?

    [​IMG]
     
  20. Silent_Gunner

    Silent_Gunner Lost Wanderer Who Sees No Evil
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    ASUS can...do a lot of things, because I could not use my desktop PC for months due to the mobo fucking up on me. Thankfully, ASRock hasn't let me down yet!
     
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  21. Jiehfeng

    Jiehfeng Netti Netti
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    I have yet to receive my MSI Ventus variant, hopefully I don't experience this issue.
     
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