pututu
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My EVGA RTX 3070 Ti XC3 Ultra gpu voltage cannot go below 0.818V under any load. See MSI afterburner screenshot even if the load is at 38.6% of the card TDP (~112W). I tried a range of power level but still the same. Obviously if I go higher power, the voltage requirement goes up. I'm trying to undervolt the card via MSI AfterBurner with lower voltage to save electricity. Anyone has the higher end model 3070 Ti FTW and report if it is possible to go lower than my voltage at low power load? TIA. Edit the image link does not work, so here it is: https://ibb.co/k0XhRnH and https://ibb.co/8YT9HVt  
post edited by pututu - 2023/11/04 20:54:45
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ty_ger07
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/05 04:34:18
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You tried to imbed a webpage instead of an image.   Your card isn't downclocking at idle. How many monitors do you have connected and at what desktop refresh rate?
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pututu
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/05 07:12:12
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Only one monitor is connected. This is my daily PC and at idle (not running any gpu workload), the power usage shows ~12W. My thinking is that it is probably in the vbios but wondering what others are seeing on a similar card or whether FTW version can run at much lower gpu voltage under light load. Here is the screenshot from idle to light load with default clock-voltage setting other than setting a cap on the power limit of 34% to see how low gpu voltage I can get. Without power limit, the default gpu voltage goes up.   https://ibb.co/S7kFFWj
post edited by pututu - 2023/11/05 07:35:26
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pututu
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/05 07:44:29
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I don't think it is a monitor issue. Only one 60Hz 1440p monitor is connected. This is my daily PC (no gaming, occasionally running distributed computing). At idle (not running any gpu workload), the power usage shows ~12-15W. My thinking is that it is probably in the vbios but wondering what others are seeing on a similar card or whether FTW version can run at much lower gpu voltage under light load. Screenshot of default clock-voltage setting with power limit cap of 34% showing gpu voltage of 0.825V. Can't seem to get below that voltage level. https://ibb.co/S7kFFWj Edit: Ran Furmark at the lowest resolution (640 x 400) for the lowest possible load and still the gpu voltage is at 0.825V. Still think it is in the vbios.  " /> https://ibb.co/zfj0ZRz
post edited by pututu - 2023/11/05 08:14:59
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ty_ger07
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/05 18:47:04
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Your idle voltages would be lower if your clock would properly drop all the way down. It isn't.
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pututu
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/05 19:43:20
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Idle voltage is 0.668V if you study carefully at the furmark screenshot just before the furmark ran. Also core clock is 210MHz.
post edited by pututu - 2023/11/05 19:45:13
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ty_ger07
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/05 20:44:48
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Oh, so it did go below 0.818v.
What is your question? I thought you said that you couldn't get it to go below 0.818v regardless of the amount of load.
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rjohnson11
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/06 03:58:09
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pututu
Idle voltage is 0.668V if you study carefully at the furmark screenshot just before the furmark ran.
Also core clock is 210MHz.
One of your posts was accidentally blocked by the forum spam filter. I have restored the post.
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pututu
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/06 06:44:25
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ty_ger07
Oh, so it did go below 0.818v.
What is your question? I thought you said that you couldn't get it to go below 0.818v regardless of the amount of load.
Maybe my simple question is can FTW version run at lower gpu voltage under light load by setting a clock-voltage frequency of 0.75V in MSI AB as in my first screenshot post. Just want to confirm the behavior of other model like 3070 Ti FTW and likely could be a vbios setting. My card didn't work at 0.75V but run at 0.818V under light load. Obviously under heavy load, gpu voltage will increase. Anyone here has 3070 Ti FTW version who can help me to confirm this? Thanks.
post edited by pututu - 2023/11/06 06:45:46
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ty_ger07
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/06 07:01:21
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My card didn't work at 0.75V but run at 0.818V under light load. Define "didn't work". Crashed?
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pututu
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/06 08:24:09
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ty_ger07
My card didn't work at 0.75V but run at 0.818V under light load.
Define "didn't work". Crashed?
No crash, just cannot force it to run at 0.75V after using MSI AB voltage frequency curve editor. To rephrase my original question: Can anyone with EVGA RTX 3070 Ti XC Ultra and FTW use MSI AB voltage frequency cruve editor and duplicate the curve like mine and please report back what gpu voltage you see under load? Hope this is clearer. TIA  " />
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pututu
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/10 08:45:10
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Bump. Anyone has any EVGA 3070 Ti cards that can confirm the min gpu voltage when setting the frequency voltage curve as shown above? Just run low resolution furmark stress test to add a little bit of load. See above. TIA
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pututu
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/17 11:37:52
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Happy Friday bump. Still looking for answers.
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HeavyHemi
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/19 05:51:31
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pututu
Happy Friday bump. Still looking for answers.
The answer is no, you cannot. GPU Boost takes over regardless.
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pututu
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/19 07:35:58
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HeavyHemi
The answer is no, you cannot. GPU Boost takes over regardless.
That's not what I see. My previous EVGA RTX 3060 can run 0.787V when adjusting the voltage frequency curve at fixed voltage of 0.787V under "constant" load (<40% TDP). Do you have a EVGA RTX 3070 Ti FTW to confirm? It should take less than a minute to set the frequency voltage curve in MSIAB and test it out. I think this is a simple request. My thinking is more towards vbios limitation but wanted to confirm what other EVGA models can do or whether this is just limited to my card.  " />
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HeavyHemi
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/21 13:26:54
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pututu
HeavyHemi
The answer is no, you cannot. GPU Boost takes over regardless.
That's not what I see.
My previous EVGA RTX 3060 can run 0.787V when adjusting the voltage frequency curve at fixed voltage of 0.787V under "constant" load (<40% TDP). Do you have a EVGA RTX 3070 Ti FTW to confirm? It should take less than a minute to set the frequency voltage curve in MSIAB and test it out. I think this is a simple request. My thinking is more towards vbios limitation but wanted to confirm what other EVGA models can do or whether this is just limited to my card.
" />
As you said, it's a limitation of the VBIOS which controls GPU boost. Different models have different boost voltage bins under different loads. What your 3060 does, is irrelevant to what the 3070 Ti does.
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pututu
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Re: EVGA RTX 3070 Ti XC3 Ultra lowest gpu voltage under any load
2023/11/28 19:06:57
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HeavyHemi
pututu
HeavyHemi
The answer is no, you cannot. GPU Boost takes over regardless.
That's not what I see.
My previous EVGA RTX 3060 can run 0.787V when adjusting the voltage frequency curve at fixed voltage of 0.787V under "constant" load (<40% TDP). Do you have a EVGA RTX 3070 Ti FTW to confirm? It should take less than a minute to set the frequency voltage curve in MSIAB and test it out. I think this is a simple request. My thinking is more towards vbios limitation but wanted to confirm what other EVGA models can do or whether this is just limited to my card.
" />
As you said, it's a limitation of the VBIOS which controls GPU boost. Different models have different boost voltage bins under different loads. What your 3060 does, is irrelevant to what the 3070 Ti does.
Running at 0.818V during steady state operation is power inefficient when the card just need to run at a much reduced clock speed and at a low power limit as set in MSIAB. If I force the card to run at say 0.78V under low power load, the voltage shifts up to 0.818V at steady state. Anyway, I just want to see what others are seeing on a similar card and perhaps the top bin FTW model. That's all I'm asking.
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