saygin123
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is it something i should be concerned about? cause i remember several post regarding to this issue but i dont remember what were them about. incase image not showing here is the power draws on load: Board power : 413W pin#1: 130W pin#2 : 144W pin#3 : 60W
post edited by saygin123 - 2021/03/04 16:39:43
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ty_ger07
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/04 16:58:20
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It's not great. It can limit your performance, when the GPU doesn't boost as high, because the power limit will be triggered by one of the other inputs before the total board power reaches the limit you should normally expect. Your PCI-E slot power draw peaking out at 84 watts (47 pixels divided by 38 pixels times 68.2 watts) is a concern, in my opinion. The PCI-E slot max 12-volt power limit per PCI-E certification is 68 watts. If you ever need an excuse to RMA your card, EVGA will almost certainly not authorize a RMA for the #3 plug using low power, but EVGA will authorize an RMA for the 84 watt PCI-E slot power draw.
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Feklar
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/04 17:25:57
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What I'd like to know is if all these cards use the same components, why do some have lower and some have higher power outputs on plug 3. A replacement card should be the same should it not? If not, why then? Defective components? Different components? I just can't wrap my head around this.
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ty_ger07
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/04 17:31:45
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Feklar What I'd like to know is if all these cards use the same components, why do some have lower and some have higher power outputs on plug 3. A replacement card should be the same should it not? If not, why then? Defective components? Different components? I just can't wrap my head around this.
The voltage controller is analog, is completely reliant on the components it is connected to, is otherwise operating in the blind with no external control or software feedback loop, and all electrical components have a tolerance. When the electrical components which are connected to the voltage controller are anywhere in their normal advertised tolerance range outside of perfect, this will happen. Think of the tolerance as an advertised curve of statistical confidence. The components should be within the curve, but if they lie anywhere inside of that curve on either side of perfect, the readings the voltage controller receives are going to be wrong, the voltage controller is going to make poor decisions based on those wrong measurements, you are going to see in software the poor decisions the voltage controller has made, but you are powerless to control or rectify those decisions. The tolerance of components is based on price. We don't know how much EVGA spent on the components, so we cannot know what their tolerance is. We can assume that their tolerance isn't great, because if EVGA chose to use a cheaper analog voltage controller instead of the more expensive digital voltage controller which some other cards have, it is likely that the other components are also the cheaper versions with worse tolerance. Profit. I have said this before. And this is why I am very vocal about the fact that each card will behave different, not all cards will have this problem, and some cards will be worse in regards to this compared to others. When some people choose to come to a thread where someone is having this problem, brag that there card is fine, want to argue about how common this problem is (as if there are any statistics available from this private company to argue this either way; and is if it somehow matters or helps the person who does have this problem), doubt that this problem even exists, and/or blame the owners of the worse cards saying that it is somehow their fault, I get very frustrated.
post edited by ty_ger07 - 2021/03/04 17:47:42
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Feklar
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/04 18:25:44
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So the analog voltage controller is less expensive than the digital controller. For nearly $2000 we get components that are lesser than the competition provides as a cost saving measure. If this is indeed the cause of the problem, it would be disappointing. Other manufacturers use digital voltage controllers. I wonder if they do not have this power balancing issue.
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Pilot 53
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/05 07:24:17
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Feklar So the analog voltage controller is less expensive than the digital controller. For nearly $2000 we get components that are lesser than the competition provides as a cost saving measure. If this is indeed the cause of the problem, it would be disappointing. Other manufacturers use digital voltage controllers. I wonder if they do not have this power balancing issue.
Yes very dissapointing. That's why they can't just fix this with a bios update, because the up9511r they are using is completely analog and can't be programmed.
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saygin123
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/05 07:44:03
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Pilot 53
Feklar So the analog voltage controller is less expensive than the digital controller. For nearly $2000 we get components that are lesser than the competition provides as a cost saving measure. If this is indeed the cause of the problem, it would be disappointing. Other manufacturers use digital voltage controllers. I wonder if they do not have this power balancing issue.
Yes very dissapointing. That's why they can't just fix this with a bios update, because the up9511r they are using is completely analog and can't be programmed.
so there wont be any solution for this problem and everybody with low 3rd pin draw on their 3090 s stuck forever?
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ty_ger07
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/05 09:20:26
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saygin123 so there wont be any solution for this problem and everybody with low 3rd pin draw on their 3090 s stuck forever?
We will see. Don't hold your breath though. That's why I said at least with your PCI-E slot consuming too much power, you have a valid excuse to RMA, if you ever feel that you want to give a different card a try.
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donnie123
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/05 10:59:15
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Can you lads stop about this voltage controller? There is numerous cards out there displaying same issues with much better PCB's and digital controllers, so what's up with those then? I have a friend with STRIX OC, same issues not properly balancing on plugs, another friend on Kingpin same issue.. I think the culprit is somewhere else and not in that component alone, otherwise only the cards with analogue controller would display this problems.
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ty_ger07
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/05 15:05:35
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donnie123 Can you lads stop about this voltage controller? There is numerous cards out there displaying same issues with much better PCB's and digital controllers, so what's up with those then?
Provide evidence.
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Itssladenlol
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/05 18:07:14
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Bull, only evga 3090 has this Problem. Neither Asus, msi or Gigabyte 3090s do this.
post edited by rjohnson11 - 2021/03/06 05:48:50
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badboy64
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/05 18:49:54
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Not everybody is affected by this low power draw that owns a 3909 card as I have had mine over 4+ months now.
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ty_ger07
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/05 19:14:52
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badboy64 Not everybody is affected by this low power draw that owns a 3909 card as I have had mine over 4+ months now.
Yes, everyone agrees. See above.
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HeavyHemi
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/05 19:19:28
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I might also add, just because... those depending up GPU-Z for accuracy regarding voltage and power draw are subject to the same error margin for the same reasons ty_ger is citing. Nobody actually knows if this is really an issue or only shows up on monitoring tools relying on "The voltage controller is analog, is completely reliant on the components it is connected to, is otherwise operating in the blind with no external control or software feedback loop, and all electrical components have a tolerance. When the electrical components which are connected to the voltage controller are anywhere in their normal advertised tolerance range outside of perfect, this will happen. Think of the tolerance as an advertised curve of statistical confidence." So... unless someone has some hard data using measuring equipment, this is all rumor based on software reporting. It does not mean it is inaccurate, it means it is not verified.
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ty_ger07
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/05 19:37:07
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Yes, in the back of my head that has really been bothering me. Is the power reading in software relayed from the same voltage controller chip, or is there a different chip which relays that information to software directly from the current shunts prior to the voltage controller circuitry? It's no problem confirming this with the most basic electrical equipment by measuring the voltage drop across each shunt resistor and seeing if the voltage drop for each is about the same even though the software shows them as much different. But sadly I'm not someone who owns a card. HeavyHemi Nobody actually knows if this is really an issue or only shows up on monitoring tools relying on
Well, we do know that it is really an issue in extreme circumstances. There is a user on this forum who had a stock card which was downclocking to below 1000 MHz due to a supposed power limit even though the supposed total board power draw was below 300 watts. That is definitely an issue. Even if the reading of less than 300 watts total board power is wrong, downclocking to below 1000 MHz due to power limit is an obvious sign that there is a problem (for them at least). If the reading is not accurate, the reading is not accurate. Either way you look at it, that is not a great thing. Whether or not that creates a performance issue for the majority is not something I can speculate about. All I know is that it does create a performance issue for some. And even if it doesn't create a performance issue for others, it is not a great characteristic for an expensive card to have. This occurs on a spectrum, and the data is far between. Why will no one who is respected investigate and report on this? I guess maybe the cards are too rare and expensive to gain much attention.
post edited by ty_ger07 - 2021/03/05 20:45:24
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Jaz11
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/06 01:08:16
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I feel you man. Welcome to my life. My card is constantly down locking due to power limit. 3080 ftw3 45c under water. Says I'm at power limit from 360w-390w on a 450w bios.... Bull****
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Bozhemoy
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/06 04:44:30
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ty_ger07 VGA will almost certainly not authorize a RMA for the #3 plug using low power, but EVGA will authorize an RMA for the 84 watt PCI-E slot power draw.
Really? Mine maxes out at like 71. What's too high and what's too low? I also have pretty big discrepancies between PIN 1/2/3. I posted in another thread and was told EVGA wouldn't RMA for something like this. I'm considering trying because the HWINFO64 shows Performance Limit - Power as YES any time the card hits any sort of load (even though I can max it out to 420W with the updated BIOS).
post edited by Bozhemoy - 2021/03/06 04:48:10
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rjohnson11
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/06 05:50:20
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A friendly reminder that swearing and/or cursing is not allowed on the EVGA forums. Such posts will be deleted or edited. Repeat offenses may result in warnings.
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Pilot 53
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/07 07:17:20
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I have heard the exact opposite, on overclockers.net there are many reports of the 500w and 1000w bios working just fine in the strix cards, no pcie overdraw. Man I wish I could have snagged one of those before the tarrifs, excellent pcb build quality.
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Jaz11
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Re: Low power draw from 3rd pci 8 pin slot ( 3090 ftw3)
2021/03/07 13:01:25
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Agree. Only reason I like my ftw3 is the much lower price I got it for. If I paid even close to the strix or aorus price I would be pissed.
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