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Rtx 3080 lower quality capacitor Issue

"In response to the recent reports speculating that the use of POSCAP capacitors on the GeForce RTX 3080/3090 graphics cards could lead to stability issues and crashes, we would like to clarify the issue with the following statement:

1. It is false that POSCAP capacitors independently could cause a hardware crash. Whether a graphics card is stable or not requires a comprehensive evaluation of the overall circuit and power delivery design, not just the difference in capacitor types. POSCAPs and MLCCs have different characteristics and uses, thus it is not true to assert that one capacitor type is better than the other.

2. The GIGABYTE GeForce RTX 30 graphics cards are designed in accordance with NVIDIA specifications, and have passed all required testing, thus the product quality is guaranteed. GIGABYTE GeForce RTX 3080/3090 GAMING OC and EAGLE OC series graphics cards use high-quality, low-ESR 470uF SP-CAP capacitors, which meet the specifications set by NVIDIA and provide a total capacity of 2820u in terms of GPU core power, higher than the industry’s average. The cost of SP-CAP capacitors is not lower than that of MLCCs. GIGABYTE values product integrity highly and definitely does not reduce costs by using cheap materials.

NVIDIA has released a driver (version 456.55) on September 29, 2020 that improves stability. Users are advised to update to the latest driver for optimized performance. For users who encounter power-related issues with GIGABYTE GeForce RTX 30 series graphics cards, GIGABYTE will provide product replacement, free of charge.

GIGABYTE has been constantly improving and optimizing product quality, especially in terms of thermal designs, to provide the best gaming experience to the consumers for decades. For the latest AORUS GeForce RTX 30 graphics card series, we have also paid extra attention to the cooling performance and introduced industry-leading solutions such as MAX-Covered Cooling to ensure that the operation of each component is stable."
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Gigabytes latest statement.

Mostly agree except technically it can be improved slightly by adding 2 banks of MLCC's as Debauer actually did it and saw a 30MHz improvement. Whether the increased cost would justify 30MHz though I'm not sure.
 
6suxen said:
der8auer's latest video on this topic is well worth a watch, he removes SP CAPS from a GIGABYTE 3090 and replaces them with MLCC's... then tests:

https://www.youtube.com/watch?v=ud6NrbJllzk
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Ye people should stop watching idiot Youtubers that got NO CLUE and just spread misinformation proper link for rest

TLTW
CAPS DONT DO **** as expected by people that know how electronics works
 
Chris Ecob said:
Mostly agree except technically it can be improved slightly by adding 2 banks of MLCC's as Debauer actually did it and saw a 30MHz improvement. Whether the increased cost would justify 30MHz though I'm not sure
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Yes, he saw a very small improvement, but it wasn't exactly comprehensive testing (one guy testing one GPU, probably not enough to change a production line). I don't think you can state this as fact just yet - that's kinda how we got in this mess in the first place (not enough testing, people jumping to conclusions, etc) :)
 
Delie32 said:
Yes, he saw a very small improvement, but it wasn't exactly comprehensive testing (one guy testing one GPU, probably not enough to change a production line). I don't think you can state this as fact just yet - that's kinda how we got in this mess in the first place (not enough testing, people jumping to conclusions, etc) :)
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Ye basically CAPS HYPETRAIN
MeagerWaryBanteng-size_restricted.gif
 
Nvidia: https://www.nvidia.com/en-us/geforc...x-3080-board-stability-new-driver-capacitors/

NVIDIA posted a driver this morning that improves stability. Regarding partner board designs, our partners regularly customize their designs and we work closely with them in the process. The appropriate number of POSCAP vs. MLCC groupings can vary depending on the design and is not necessarily indicative of quality.
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Another User:
Thanks but it still crashes. Completely freeze up and have to hard reset only. The only working workaround is to down clock by 50MHz.
https://www.nvidia.com/en-us/geforce/forums/feed/400603/zotac-gaming-rtx-3080-10gb-trinity-still-crash-wit/
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With so few cards out in the wild, it seems... it's going to be a while before this is completely put to bed.
 
The power delivery network has nothing to do with what boost clocks a GPU might be able to achieve; it's there to provide adequate power to the GPU in cases of sudden demand in power (as the VRM's take a while to provide enough power), and that's all about being able to respond to clock changes quickly and thus stability. Seeing higher boost clocks as a result of changing some PDN capacitors is just not how it works.
 
Zeed said:
@Shiari thats why not fixed crappy Zotac with drivers. Needs to get downlocked way more
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I think you misunderstood: I'm saying that if like der8auer you changed your 6 capacitor layout you wouldn't see higher boost clocks as a result of that, they're not related - there has to be a different cause to it. You can however affect stability if the power the GPU's power needs can't be delivered quickly enough by these capacitors.
 
Shiari said:
I think you misunderstood: I'm saying that if like der8auer you changed your 6 capacitor layout you wouldn't see higher boost clocks as a result of that, they're not related - there has to be a different cause to it. You can however affect stability if the power the GPU's power needs can't be delivered quickly enough by these capacitors.
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I said Caps theory was ******** since FRIDAY and Jays retarded video. More depends on VRM section and silicone quality.
 
Kaapstad said:
Yes there are other things that effect it but all things being equal you should be able to get higher clocks.
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My experience with Zen 2 has me thinking heat density became an issue at some point. Considering that faster clocks tend to require higher voltages, I can see a point of deminishing returns. AMD implemented a high-speed game of hot-potato to deal with it, but they had to do something.
 
Full driver check.
https://www.hardwareluxx.de/index.php/news/hardware/grafikkarten/54226-kondensator-probleme-bei-fruehen-geforce-rtx-30-karten-fuehren-zu-abstuerzen-update-nvidia-nimmt-stellung.htm


ASUS-TUF-Gaming-GeForce-RTX-3080-Voltage-Curve_A3FF0C8F7DE5400DB4B7FBED4619D289.jpg


Gigabytes:

"In response to recent reports speculating that using POSCAP capacitors on the GeForce RTX 3080 graphics cards could lead to stability issues and crashes, we would like to clarify this question with the following explanation:

It is wrong that POSCAP capacitors could independently cause a hardware crash. Whether or not a graphics card is stable requires a thorough evaluation of the overall circuit design and power supply design, not just the difference in capacitor types. POSCAPs and MLCCs have different properties, so it is incorrect to say that one type of capacitor is better than the other.
 
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I would say if using higher capacity SP caps like GB is doing then a 5+1 MLCC group is probably more ideal - though it would need understanding of the rest of the implementation to be sure. Not sure 6x even higher rated SP caps is sufficient to deal with the full range of environment conditions including higher frequency filtering - though GB seem confident. 5+1 where the capacitance adds up to enough or higher than the reference spec would be a good solution as well.

Again a lot would depend on understanding the full implementation as for instance a high performance power delivery system might be capable of dealing with much of the current demands but require a specific range of ESR to be stable, etc.
 
I wonder if the damage is already done. Even if the cards are fine the perception that MLCC is better might convince manufacturers to switch their designs even if it's not necessary or advantageous. We might even end up with inferior MLCC setups being used with cheaper caps or too many MLCC when a mix might be better. It will be interesting to see if Gigabyte switch their design in the coming months.
I also worry this will affect the resaleability of full SP-Cap cards. Still deciding if I should cancel my pre-order for the Gigabyte Eagle.
 
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