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Helpful ReplyHot!3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap?

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gsrcrxsi
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2021/06/24 09:05:36 (permalink)
So I have this card. it seems to more or less work fine. but there seems to be some hidden power cap being enforced. I have never observed the card to use more then 300W. it doesnt matter what load I use. 3D benchmarks, CUDA compute tests, etc. so far it seems to throttle right around the 300W mark. increasing clocks doesn't help. I ran Heaven 4.0 on loop at 4K with all the settings set to max. looks great, runs fine, but clocks are staying around ~1800-1850MHz and the card never pulls more than 300W, I even cranked the clocks to +150/+1000 and no change, and more commonly around 290-295W. In an O11D with dual 360mm rads, highest temp reported was about 48C. from reviews of other 3080ti models, these cards should be pulling up to the full power limit in these kinds of tests.
 
I've tried tests under both Linux and Windows, with the same results. nothing seems to get the power limit over 300W. this is making me suspect that there is some hidden power cap that's not allowing the card to pull the full 350W and leaving performance on the table. This card allows up to 366W power limit, but increasing it to that still doesn't change anything.
 
Is anyone else experiencing anything similar? Any suggestions on what I might try?
 
Used the 471.11 drivers on Windows
Used the 460.84 drivers on Linux
X570 w/ 5950X @ 4.45GHz
post edited by gsrcrxsi - 2021/06/24 09:06:55

For the Tears...
 
Main: 5950X | EVGA 3080Ti XC3 Ultra HC
Rig1: EPYC 7502 | 7x ASUS RTX 2080 (watercooled)
Rig2: EPYC 7402P | 7x EVGA RTX 2080Ti XC Ultra
Rig3: EPYC 7402P | 8x EVGA RTX 2070 Black
Rig4: 2x EPYC 7642 | EVGA RTX 2080Ti Black
 
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gsrcrxsi
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 09:32:39 (permalink)
other info: while running Unigine Heaven 4.0 @4k with power limit maxed to 105% (366W) on Precision X1
 
GPU-Z:
PerfCap Reason: PWR
Power consumption: ~80-85% TDP
PCIe slot power: ~66W
PCIe 8-pin#1 power: ~110W
PCIe 8-pin#2 power: ~105W
Board power hanging around 290-295W, 304W instantaneous peak
 
but precision X1 shows power draw near 100%, bouncing 98-100ish. there is something defininitely wrong here. why would GPUz report a power limit when it's below the limit? I suspect some funky vBIOS setting/config that's enforcing a lower power limit. can anyone reproduce this on a 3080ti?
 
post edited by gsrcrxsi - 2021/06/24 09:33:45

For the Tears...
 
Main: 5950X | EVGA 3080Ti XC3 Ultra HC
Rig1: EPYC 7502 | 7x ASUS RTX 2080 (watercooled)
Rig2: EPYC 7402P | 7x EVGA RTX 2080Ti XC Ultra
Rig3: EPYC 7402P | 8x EVGA RTX 2070 Black
Rig4: 2x EPYC 7642 | EVGA RTX 2080Ti Black
 
10G-P5-3889-KR 2/25/2021 6:00:06 AM PT Yes

12G-P5-3959-KR 6/15/2021 9:00:32 AM PT Yes
12G-P5-3657-KR 2/25/2021 9:01:29 AM PT Yes
12G-P5-3655-KR 2/25/2021 9:01:06 AM PT Yes
08G-P5-3751-KL 10/29/2020 6:07:00 AM PT Yes
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Hot_Chez
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 09:44:21 (permalink)
that sucks to hear. I got 6:00:19 in that gpu queue so maybe if I end up getting one in a few weeks I could look and see if it has the same problem.
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kram36
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 09:47:38 (permalink)
Wow, it's a terrible card. I'll give you $800 shipped for it.

Use My Associates Code TCPVYLY1ETNXOWN & SAVE on your next purchase!
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talon951
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 09:56:15 (permalink)
It's hitting an internal limit you can't see in the monitoring tools. Try Kombustor. The FTW3 doesn't get much higher than 400w (out of 450w) in a lot of games. But it does get close to 450w in Kombustor. Not that it really helps for gaming obviously.
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gsrcrxsi
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 10:15:15 (permalink)
talon951
It's hitting an internal limit you can't see in the monitoring tools. Try Kombustor. The FTW3 doesn't get much higher than 400w (out of 450w) in a lot of games. But it does get close to 450w in Kombustor. Not that it really helps for gaming obviously.

what internal limit could there be? lots of reviews show other brands cards pulling all the way to the power limit. like the FE card and the MSI cards, etc. EVGA shouldn't be any different. the disconnect between what Precision X1 shows (100%) and GPUz/HWinfo (85%) is really suspect. I think the bios thinks it's hitting a limit when it's really not.

For the Tears...
 
Main: 5950X | EVGA 3080Ti XC3 Ultra HC
Rig1: EPYC 7502 | 7x ASUS RTX 2080 (watercooled)
Rig2: EPYC 7402P | 7x EVGA RTX 2080Ti XC Ultra
Rig3: EPYC 7402P | 8x EVGA RTX 2070 Black
Rig4: 2x EPYC 7642 | EVGA RTX 2080Ti Black
 
10G-P5-3889-KR 2/25/2021 6:00:06 AM PT Yes

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gsrcrxsi
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 10:37:22 (permalink)
running Kombustor, clocks ~1650MHz, power came up to about 305-315W
 

For the Tears...
 
Main: 5950X | EVGA 3080Ti XC3 Ultra HC
Rig1: EPYC 7502 | 7x ASUS RTX 2080 (watercooled)
Rig2: EPYC 7402P | 7x EVGA RTX 2080Ti XC Ultra
Rig3: EPYC 7402P | 8x EVGA RTX 2070 Black
Rig4: 2x EPYC 7642 | EVGA RTX 2080Ti Black
 
10G-P5-3889-KR 2/25/2021 6:00:06 AM PT Yes

12G-P5-3959-KR 6/15/2021 9:00:32 AM PT Yes
12G-P5-3657-KR 2/25/2021 9:01:29 AM PT Yes
12G-P5-3655-KR 2/25/2021 9:01:06 AM PT Yes
08G-P5-3751-KL 10/29/2020 6:07:00 AM PT Yes
08G-P5-3751-KR 10/29/2020 6:00:29 AM PT Yes
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KingEngineRevUp
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 11:13:05 (permalink)
gsrcrxsi
running Kombustor, clocks ~1650MHz, power came up to about 305-315W
 


When that happened, what are the max on PCI-E, Pin#1 and Pin#2?

Some people suspect the limit is when a Pin# hits 150W everything else stops.

But I don't think that's true because a 3080 Ti Strix was shown to have all the pins at 120Wish and it was capped at 400W still when it should be able to go up to 450W.
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gsrcrxsi
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 12:06:03 (permalink)
I’ve never seen the individual plugs over about 125W

For the Tears...
 
Main: 5950X | EVGA 3080Ti XC3 Ultra HC
Rig1: EPYC 7502 | 7x ASUS RTX 2080 (watercooled)
Rig2: EPYC 7402P | 7x EVGA RTX 2080Ti XC Ultra
Rig3: EPYC 7402P | 8x EVGA RTX 2070 Black
Rig4: 2x EPYC 7642 | EVGA RTX 2080Ti Black
 
10G-P5-3889-KR 2/25/2021 6:00:06 AM PT Yes

12G-P5-3959-KR 6/15/2021 9:00:32 AM PT Yes
12G-P5-3657-KR 2/25/2021 9:01:29 AM PT Yes
12G-P5-3655-KR 2/25/2021 9:01:06 AM PT Yes
08G-P5-3751-KL 10/29/2020 6:07:00 AM PT Yes
08G-P5-3751-KR 10/29/2020 6:00:29 AM PT Yes
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talon951
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 12:25:09 (permalink)
gsrcrxsi
running Kombustor, clocks ~1650MHz, power came up to about 305-315W
 


Yea that's not good. Might be worth asking EVGA. I think they will work with you if it isn't even getting close to the default 350w limit.

Might try running DDU in safe mode first and reinstalling your drivers if you haven't already. Although you said you tried Linux too so maybe not much hope there.

A bios does have other internal limits that can be hit beyond the total power and 8pin/pcie though.

ABE can show more of them but can't show which one is being hit. You can see an example here.

https://www.reddit.com/r/...comparison_asus_strix/

It doesn't work with the 3080TI yet though. At least I don't have a version that does.

This is why the KP XOC bios can even let a card like my Zotac 3090 2x8pin card pull 500w+. It has all of those set crazy high.
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kram36
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 12:25:23 (permalink)
Trade you my RTX 3080 Ti FTW3 card for it.

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neteng101
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 12:38:09 (permalink)
gsrcrxsi
PCIe slot power: ~66W



The slot power is where you're hitting the power limit.  I don't know how the hybrid card has its power routed but maybe the pump head and fans are all powered by the PCIe slot power rail and that might be causing it to hit the power limit first.  There's hidden limits in the bios - each power connection has its own limit in addition to the total PL.
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kram36
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 13:22:40 (permalink)
neteng101
gsrcrxsi
PCIe slot power: ~66W



The slot power is where you're hitting the power limit.  I don't know how the hybrid card has its power routed but maybe the pump head and fans are all powered by the PCIe slot power rail and that might be causing it to hit the power limit first.  There's hidden limits in the bios - each power connection has its own limit in addition to the total PL.


This is a Hydro Copper card, no pump or fans on the card.

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gsrcrxsi
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 13:48:10 (permalink)
this should illustrate what I'm seeing.
 

 
PX1 say's it's 100% power, GPUz says 85% power. it's being limited artificially below the actual limit it seems. If I run furmark, it's even worse. Clocks drop to 1000-1100 MHz and power draw is pegged at 270W and GPUz also reports a power cap reason as PWR. or power balancing issues where it's hitting a wall at the PCIe slot but not allowing the excess to be pulled from the cables where it has the headroom to do so. maybe that could be tweaked in the BIOS, but I'm not sure.
 
I did call EVGA, but they didnt have many answers. they couldn't even provide me the default BIOS to try reflashing it. I think there's a strong possibility this is something off in the BIOS causing this.
post edited by gsrcrxsi - 2021/06/24 14:06:40

For the Tears...
 
Main: 5950X | EVGA 3080Ti XC3 Ultra HC
Rig1: EPYC 7502 | 7x ASUS RTX 2080 (watercooled)
Rig2: EPYC 7402P | 7x EVGA RTX 2080Ti XC Ultra
Rig3: EPYC 7402P | 8x EVGA RTX 2070 Black
Rig4: 2x EPYC 7642 | EVGA RTX 2080Ti Black
 
10G-P5-3889-KR 2/25/2021 6:00:06 AM PT Yes

12G-P5-3959-KR 6/15/2021 9:00:32 AM PT Yes
12G-P5-3657-KR 2/25/2021 9:01:29 AM PT Yes
12G-P5-3655-KR 2/25/2021 9:01:06 AM PT Yes
08G-P5-3751-KL 10/29/2020 6:07:00 AM PT Yes
08G-P5-3751-KR 10/29/2020 6:00:29 AM PT Yes
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talon951
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 14:29:27 (permalink)
That is odd that PX1 and GPUZ read differently.  I just tried that on mine, both read the same.  I'm not surprised some other stress tests like Furmark read lower.  I've seen that on my FTW3.  It'll max out early on pin #2 at 160w and stop at 400w or even a little less.  I think it has to do with what part of the card/core is being used the most and it varies from one 3D app to another.
 
Any of 3080ti XC3 bios will work.  Might try flashing one of the others in case they just have something borked in the HC version.
 
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talon951
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 14:41:31 (permalink)
neteng101
gsrcrxsi
PCIe slot power: ~66W



The slot power is where you're hitting the power limit.  I don't know how the hybrid card has its power routed but maybe the pump head and fans are all powered by the PCIe slot power rail and that might be causing it to hit the power limit first.  There's hidden limits in the bios - each power connection has its own limit in addition to the total PL.




Why do you think it's 66w?  I can't check the 3080ti bios yet, but the 3080 and 3090 XC3 are both 78w max.
 
This forum sucks for doing images but I posted it over here too.
 
https://www.overclock.net...3/page-8#post-28831429
 
 
post edited by talon951 - 2021/06/24 14:46:20
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gsrcrxsi
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 14:44:43 (permalink)
talon951
That is odd that PX1 and GPUZ read differently.  I just tried that on mine, both read the same.  I'm not surprised some other stress tests like Furmark read lower.  I've seen that on my FTW3.  It'll max out early on pin #2 at 160w and stop at 400w or even a little less.  I think it has to do with what part of the card/core is being used the most and it varies from one 3D app to another.
 
Any of 3080ti XC3 bios will work.  Might try flashing one of the others in case they just have something borked in the HC version.
 


what card do you have? 3080? 3090? 3080ti?

For the Tears...
 
Main: 5950X | EVGA 3080Ti XC3 Ultra HC
Rig1: EPYC 7502 | 7x ASUS RTX 2080 (watercooled)
Rig2: EPYC 7402P | 7x EVGA RTX 2080Ti XC Ultra
Rig3: EPYC 7402P | 8x EVGA RTX 2070 Black
Rig4: 2x EPYC 7642 | EVGA RTX 2080Ti Black
 
10G-P5-3889-KR 2/25/2021 6:00:06 AM PT Yes

12G-P5-3959-KR 6/15/2021 9:00:32 AM PT Yes
12G-P5-3657-KR 2/25/2021 9:01:29 AM PT Yes
12G-P5-3655-KR 2/25/2021 9:01:06 AM PT Yes
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talon951
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 14:47:16 (permalink)
gsrcrxsi
talon951
That is odd that PX1 and GPUZ read differently.  I just tried that on mine, both read the same.  I'm not surprised some other stress tests like Furmark read lower.  I've seen that on my FTW3.  It'll max out early on pin #2 at 160w and stop at 400w or even a little less.  I think it has to do with what part of the card/core is being used the most and it varies from one 3D app to another.
 
Any of 3080ti XC3 bios will work.  Might try flashing one of the others in case they just have something borked in the HC version.
 


what card do you have? 3080? 3090? 3080ti?




I have a 3080ti FTW3 that is now converted to a hybrid.
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 15:08:05 (permalink)
talon951
gsrcrxsi
talon951
That is odd that PX1 and GPUZ read differently.  I just tried that on mine, both read the same.  I'm not surprised some other stress tests like Furmark read lower.  I've seen that on my FTW3.  It'll max out early on pin #2 at 160w and stop at 400w or even a little less.  I think it has to do with what part of the card/core is being used the most and it varies from one 3D app to another.
 
Any of 3080ti XC3 bios will work.  Might try flashing one of the others in case they just have something borked in the HC version.
 


what card do you have? 3080? 3090? 3080ti?




I have a 3080ti FTW3 that is now converted to a hybrid.

Once you converted from air cooled to an AIO that voided your warranty right?
#19
kram36
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 15:12:58 (permalink)
Hot_Chez
talon951
gsrcrxsi
talon951
That is odd that PX1 and GPUZ read differently.  I just tried that on mine, both read the same.  I'm not surprised some other stress tests like Furmark read lower.  I've seen that on my FTW3.  It'll max out early on pin #2 at 160w and stop at 400w or even a little less.  I think it has to do with what part of the card/core is being used the most and it varies from one 3D app to another.
 
Any of 3080ti XC3 bios will work.  Might try flashing one of the others in case they just have something borked in the HC version.
 


what card do you have? 3080? 3090? 3080ti?




I have a 3080ti FTW3 that is now converted to a hybrid.

Once you converted from air cooled to an AIO that voided your warranty right?

Nope, not with EVGA.

Use My Associates Code TCPVYLY1ETNXOWN & SAVE on your next purchase!
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Hot_Chez
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 15:26:54 (permalink)
kram36
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talon951
gsrcrxsi
talon951
That is odd that PX1 and GPUZ read differently.  I just tried that on mine, both read the same.  I'm not surprised some other stress tests like Furmark read lower.  I've seen that on my FTW3.  It'll max out early on pin #2 at 160w and stop at 400w or even a little less.  I think it has to do with what part of the card/core is being used the most and it varies from one 3D app to another.

Any of 3080ti XC3 bios will work.  Might try flashing one of the others in case they just have something borked in the HC version.



what card do you have? 3080? 3090? 3080ti?




I have a 3080ti FTW3 that is now converted to a hybrid.

Once you converted from air cooled to an AIO that voided your warranty right?

Nope, not with EVGA.

Ok then my next question is why? Because I looked over the warranty and it says it gets voided if you alter a card after factory production. Would taking an air block off for an AIO not be considered to be altering the factory product?
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gsrcrxsi
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 15:28:39 (permalink)
I think we're on to something with the PCIe power.
 
PCIe slot "spec" is 75W TOTAL. but if you ignore power allocated to 3.3V, you are only allotted 66W for 12V power via the slot.
 
another thing is that if I have the card just sitting there running nothing, but in high performance mode with clocks sitting at 1725MHz, GPUz reports a total board power of about 100W, with 32.5W being pulled from the PCIe slot. GPUz reports that the power consumption is 28.8% TDP, but PX1 reports 49% power consumption.
 
32.5/66 = 49%.
 
so it seems that the whole card's power limit logic is only based on the pcie power input? they should only be throttling the PCIe slot and not throttling the whole card.
 
EVGA should address this discrepancy.

For the Tears...
 
Main: 5950X | EVGA 3080Ti XC3 Ultra HC
Rig1: EPYC 7502 | 7x ASUS RTX 2080 (watercooled)
Rig2: EPYC 7402P | 7x EVGA RTX 2080Ti XC Ultra
Rig3: EPYC 7402P | 8x EVGA RTX 2070 Black
Rig4: 2x EPYC 7642 | EVGA RTX 2080Ti Black
 
10G-P5-3889-KR 2/25/2021 6:00:06 AM PT Yes

12G-P5-3959-KR 6/15/2021 9:00:32 AM PT Yes
12G-P5-3657-KR 2/25/2021 9:01:29 AM PT Yes
12G-P5-3655-KR 2/25/2021 9:01:06 AM PT Yes
08G-P5-3751-KL 10/29/2020 6:07:00 AM PT Yes
08G-P5-3751-KR 10/29/2020 6:00:29 AM PT Yes
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KingEngineRevUp
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 15:35:20 (permalink)
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gsrcrxsi
talon951
That is odd that PX1 and GPUZ read differently.  I just tried that on mine, both read the same.  I'm not surprised some other stress tests like Furmark read lower.  I've seen that on my FTW3.  It'll max out early on pin #2 at 160w and stop at 400w or even a little less.  I think it has to do with what part of the card/core is being used the most and it varies from one 3D app to another.

Any of 3080ti XC3 bios will work.  Might try flashing one of the others in case they just have something borked in the HC version.



what card do you have? 3080? 3090? 3080ti?




I have a 3080ti FTW3 that is now converted to a hybrid.

Once you converted from air cooled to an AIO that voided your warranty right?

Nope, not with EVGA.

Ok then my next question is why? Because I looked over the warranty and it says it gets voided if you alter a card after factory production. Would taking an air block off for an AIO not be considered to be altering the factory product?

Altering the card at a hardware level, so if you solder a shunt mod on is an example of what is altering the card. 
 
Repasting or installing a Hybrid kit (from EVGA themselves I may add) isn't considered this type of altering. 
 
If the PCB is left along and stock, you can cool it how you want is my understanding. 
#23
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 15:37:45 (permalink)
KingEngineRevUp
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kram36
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talon951
gsrcrxsi
talon951
That is odd that PX1 and GPUZ read differently.  I just tried that on mine, both read the same.  I'm not surprised some other stress tests like Furmark read lower.  I've seen that on my FTW3.  It'll max out early on pin #2 at 160w and stop at 400w or even a little less.  I think it has to do with what part of the card/core is being used the most and it varies from one 3D app to another.

Any of 3080ti XC3 bios will work.  Might try flashing one of the others in case they just have something borked in the HC version.



what card do you have? 3080? 3090? 3080ti?




I have a 3080ti FTW3 that is now converted to a hybrid.

Once you converted from air cooled to an AIO that voided your warranty right?

Nope, not with EVGA.

Ok then my next question is why? Because I looked over the warranty and it says it gets voided if you alter a card after factory production. Would taking an air block off for an AIO not be considered to be altering the factory product?

Altering the card at a hardware level, so if you solder a shunt mod on is an example of what is altering the card. 
 
Repasting or installing a Hybrid kit (from EVGA themselves I may add) isn't considered this type of altering. 
 
If the PCB is left along and stock, you can cool it how you want is my understanding. 

This is very helpful information thank you so much!
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kram36
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 15:39:35 (permalink)
Hot_Chez
kram36
Hot_Chez
talon951
gsrcrxsi
talon951
That is odd that PX1 and GPUZ read differently.  I just tried that on mine, both read the same.  I'm not surprised some other stress tests like Furmark read lower.  I've seen that on my FTW3.  It'll max out early on pin #2 at 160w and stop at 400w or even a little less.  I think it has to do with what part of the card/core is being used the most and it varies from one 3D app to another.

Any of 3080ti XC3 bios will work.  Might try flashing one of the others in case they just have something borked in the HC version.



what card do you have? 3080? 3090? 3080ti?




I have a 3080ti FTW3 that is now converted to a hybrid.

Once you converted from air cooled to an AIO that voided your warranty right?

Nope, not with EVGA.

Ok then my next question is why? Because I looked over the warranty and it says it gets voided if you alter a card after factory production. Would taking an air block off for an AIO not be considered to be altering the factory product?

It's not considered altering the factory production. Doing shunt mods and stuff like that is altering the factory production. You do know EVGA sells a Hybrid kit for people to put on their card and some times will have Hydro Copper blocks? The only thing is you must return the card in factory condition for an RMA, so don't put a Hybrid kit or water block on your card and sell the air cooler.

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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 15:42:39 (permalink)
Now that we've put that off topic tangent behind us. back on topic.
 
gsrcrxsi
I think we're on to something with the PCIe power.
 
PCIe slot "spec" is 75W TOTAL. but if you ignore power allocated to 3.3V, you are only allotted 66W for 12V power via the slot.
 
another thing is that if I have the card just sitting there running nothing, but in high performance mode with clocks sitting at 1725MHz, GPUz reports a total board power of about 100W, with 32.5W being pulled from the PCIe slot. GPUz reports that the power consumption is 28.8% TDP, but PX1 reports 49% power consumption.
 
32.5/66 = 49%.
 
so it seems that the whole card's power limit logic is only based on the pcie power input? they should only be throttling the PCIe slot and not throttling the whole card.
 
EVGA should address this discrepancy.


For the Tears...
 
Main: 5950X | EVGA 3080Ti XC3 Ultra HC
Rig1: EPYC 7502 | 7x ASUS RTX 2080 (watercooled)
Rig2: EPYC 7402P | 7x EVGA RTX 2080Ti XC Ultra
Rig3: EPYC 7402P | 8x EVGA RTX 2070 Black
Rig4: 2x EPYC 7642 | EVGA RTX 2080Ti Black
 
10G-P5-3889-KR 2/25/2021 6:00:06 AM PT Yes

12G-P5-3959-KR 6/15/2021 9:00:32 AM PT Yes
12G-P5-3657-KR 2/25/2021 9:01:29 AM PT Yes
12G-P5-3655-KR 2/25/2021 9:01:06 AM PT Yes
08G-P5-3751-KL 10/29/2020 6:07:00 AM PT Yes
08G-P5-3751-KR 10/29/2020 6:00:29 AM PT Yes
#26
kram36
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 15:51:40 (permalink)
gsrcrxsi
Now that we've put that off topic tangent behind us. back on topic.
 
gsrcrxsi
I think we're on to something with the PCIe power.

PCIe slot "spec" is 75W TOTAL. but if you ignore power allocated to 3.3V, you are only allotted 66W for 12V power via the slot.

another thing is that if I have the card just sitting there running nothing, but in high performance mode with clocks sitting at 1725MHz, GPUz reports a total board power of about 100W, with 32.5W being pulled from the PCIe slot. GPUz reports that the power consumption is 28.8% TDP, but PX1 reports 49% power consumption.

32.5/66 = 49%.

so it seems that the whole card's power limit logic is only based on the pcie power input? they should only be throttling the PCIe slot and not throttling the whole card.

EVGA should address this discrepancy.



What happens if you try Afterburner? No fans on the card, so you don't need Precision X1 to OC the card and have the fans run correctly.

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#27
gsrcrxsi
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 16:02:51 (permalink)
Afterburner agrees with GPUz in terms of total power consumption value (in watts), but agrees with PX1 in terms of power consumption percentage. So it’ll say 300W but 100%. I suspect that Afterburner is reading whatever the card tells it, where GPUz is doing it more correctly by taking power used/power limit.

EVGA has made adjustments to BIOS’ of other models of cards to fix power issues like this. No reason they couldn’t or shouldn’t try to fix this one.

For the Tears...
 
Main: 5950X | EVGA 3080Ti XC3 Ultra HC
Rig1: EPYC 7502 | 7x ASUS RTX 2080 (watercooled)
Rig2: EPYC 7402P | 7x EVGA RTX 2080Ti XC Ultra
Rig3: EPYC 7402P | 8x EVGA RTX 2070 Black
Rig4: 2x EPYC 7642 | EVGA RTX 2080Ti Black
 
10G-P5-3889-KR 2/25/2021 6:00:06 AM PT Yes

12G-P5-3959-KR 6/15/2021 9:00:32 AM PT Yes
12G-P5-3657-KR 2/25/2021 9:01:29 AM PT Yes
12G-P5-3655-KR 2/25/2021 9:01:06 AM PT Yes
08G-P5-3751-KL 10/29/2020 6:07:00 AM PT Yes
08G-P5-3751-KR 10/29/2020 6:00:29 AM PT Yes
#28
talon951
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 16:14:33 (permalink) ☄ Helpfulby XrayMan 2021/07/24 15:59:15
gsrcrxsi
I think we're on to something with the PCIe power.
 
PCIe slot "spec" is 75W TOTAL. but if you ignore power allocated to 3.3V, you are only allotted 66W for 12V power via the slot.
 
another thing is that if I have the card just sitting there running nothing, but in high performance mode with clocks sitting at 1725MHz, GPUz reports a total board power of about 100W, with 32.5W being pulled from the PCIe slot. GPUz reports that the power consumption is 28.8% TDP, but PX1 reports 49% power consumption.
 
32.5/66 = 49%.
 
so it seems that the whole card's power limit logic is only based on the pcie power input? they should only be throttling the PCIe slot and not throttling the whole card.
 
EVGA should address this discrepancy.


Well no matter what the reason, I would try harder to get EVGA tech to look at it. Other than flashing a different bios, there's nothing you can do yourself.

But if you do that, you should use NVFlash manually and save your original bios so you can restore it back on the card if you end up RMAing it.
post edited by talon951 - 2021/06/24 16:16:52
#29
kram36
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Re: 3080 Ti XC3 Ultra Hydro Copper, low power consumption, hidden power cap? 2021/06/24 17:25:12 (permalink)
Go here and grab the 3080 Ti Hybrid bios. EVGA just put this up yesterday. Of coarse save your bios before you flash.
 
https://forums.evga.com/EVGA-GeForce-30-Series-HYBRIDXOCDefault-BIOS-Thread-m3407542.aspx
post edited by kram36 - 2021/06/24 17:31:16

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