F5F Stay Refreshed Power Users Overclocking Gpu voltage limiter?

Gpu voltage limiter?

Gpu voltage limiter?

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RGabriel14
Junior Member
15
04-28-2025, 09:11 PM
#1
I'm currently achieving 1569/4100 on my 980, which is quite solid based on what I've read online. However, I'm aiming to take it further and manage to reach 1582.5mhz, though I encounter some artifacts along the way. I started looking up solutions online to extract every bit of performance possible. But pushing above 1.275v didn't seem effective; I tried increasing to 1.3v but the readings still show 1.275v. I'm using nvflash to boost my GPU's voltage for better stability, and I've had it reset twice because it was damaged. I take full responsibility for this issue and just want to know if it's feasible.

Is it possible to bypass this voltage limiter? I own the G1 Gaming GTX 980.

Current results:
https://www.3dmark.com/3dm/25751775

I'm trying to achieve 5050 without further CPU overclocking, and I haven't noticed my GPU temperatures exceeding 66°C since I replaced the GPU. Still, I won't exceed 1.3v—just curious if a slight voltage increase could help.
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RGabriel14
04-28-2025, 09:11 PM #1

I'm currently achieving 1569/4100 on my 980, which is quite solid based on what I've read online. However, I'm aiming to take it further and manage to reach 1582.5mhz, though I encounter some artifacts along the way. I started looking up solutions online to extract every bit of performance possible. But pushing above 1.275v didn't seem effective; I tried increasing to 1.3v but the readings still show 1.275v. I'm using nvflash to boost my GPU's voltage for better stability, and I've had it reset twice because it was damaged. I take full responsibility for this issue and just want to know if it's feasible.

Is it possible to bypass this voltage limiter? I own the G1 Gaming GTX 980.

Current results:
https://www.3dmark.com/3dm/25751775

I'm trying to achieve 5050 without further CPU overclocking, and I haven't noticed my GPU temperatures exceeding 66°C since I replaced the GPU. Still, I won't exceed 1.3v—just curious if a slight voltage increase could help.

C
Chiller9592
Senior Member
670
04-28-2025, 09:11 PM
#2
Studies indicate that all Gigabyte cards include voltage limiters. This suggests the limitation is hardware-based, not software-related. Therefore, you cannot raise the voltage beyond a certain threshold regardless of adjustments.

Here is a link that might be useful: http://www.overclock.net/forum/71-nvidia...sa-19.html
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Chiller9592
04-28-2025, 09:11 PM #2

Studies indicate that all Gigabyte cards include voltage limiters. This suggests the limitation is hardware-based, not software-related. Therefore, you cannot raise the voltage beyond a certain threshold regardless of adjustments.

Here is a link that might be useful: http://www.overclock.net/forum/71-nvidia...sa-19.html

H
herobrine3959
Senior Member
443
04-28-2025, 09:11 PM
#3
The only solution to remove the limiter would be to either change the BIOS or install a different BIOS from another card, which isn't ideal. However, you do have a dual-bios setup, so if you brick it again you can switch to the second one and resolve the issue. This seems to be what you did twice before. I think none of the four different bios listed on the product page made a difference.
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herobrine3959
04-28-2025, 09:11 PM #3

The only solution to remove the limiter would be to either change the BIOS or install a different BIOS from another card, which isn't ideal. However, you do have a dual-bios setup, so if you brick it again you can switch to the second one and resolve the issue. This seems to be what you did twice before. I think none of the four different bios listed on the product page made a difference.

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BaD_DuTcHe
Junior Member
11
04-28-2025, 09:11 PM
#4
The only solution to remove the limiter would be changing the BIOS or installing a different one from another card. That doesn’t sound like a good plan. I’m already tweaking the card through the BIOS, using nvflash and Maxwell BIOS Tweaker. Anything above 1.275V isn’t showing up in hwmonitor—it still reads 1.275, which suggests the card is being limited somehow. Yes, I fixed it with dual BIOS.
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BaD_DuTcHe
04-28-2025, 09:11 PM #4

The only solution to remove the limiter would be changing the BIOS or installing a different one from another card. That doesn’t sound like a good plan. I’m already tweaking the card through the BIOS, using nvflash and Maxwell BIOS Tweaker. Anything above 1.275V isn’t showing up in hwmonitor—it still reads 1.275, which suggests the card is being limited somehow. Yes, I fixed it with dual BIOS.

P
petiteaxelle
Member
57
04-28-2025, 09:11 PM
#5
Why are you rushing to damage your GPU given the steep prices for replacements? You should let it be.
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petiteaxelle
04-28-2025, 09:11 PM #5

Why are you rushing to damage your GPU given the steep prices for replacements? You should let it be.

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StreetHobo
Senior Member
568
04-28-2025, 09:11 PM
#6
urbancamper :
Why are you rushing to possibly harm your GPU given the high prices of new ones? I just think you should let it be. I'm not trying to ruin anything, but I do want the limiter removed. I'd never exceed 1.3v anyway, so I wouldn't risk damaging the card.
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StreetHobo
04-28-2025, 09:11 PM #6

urbancamper :
Why are you rushing to possibly harm your GPU given the high prices of new ones? I just think you should let it be. I'm not trying to ruin anything, but I do want the limiter removed. I'd never exceed 1.3v anyway, so I wouldn't risk damaging the card.

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WereWolf87
Member
74
04-28-2025, 09:11 PM
#7
Studies indicate that all Gigabyte cards include voltage limiters. This suggests the limitation is hardware-based, not software-related. Therefore, you cannot raise the voltage beyond a certain threshold regardless of adjustments.

Here is a link that might be useful: http://www.overclock.net/forum/71-nvidia...sa-19.html

I take no responsibility for the outcomes.
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WereWolf87
04-28-2025, 09:11 PM #7

Studies indicate that all Gigabyte cards include voltage limiters. This suggests the limitation is hardware-based, not software-related. Therefore, you cannot raise the voltage beyond a certain threshold regardless of adjustments.

Here is a link that might be useful: http://www.overclock.net/forum/71-nvidia...sa-19.html

I take no responsibility for the outcomes.

R
RayoDeGrande
Member
51
04-28-2025, 09:11 PM
#8
urbancamper
I've been looking for research GPUs that include voltage limiters. All the information I found suggests Gigabyte cards have them, which seems to be a hardware feature rather than software-based. That means you can't raise the voltage beyond a certain threshold, no matter what you try.
Here’s a link that might be useful:
http://www.overclock.net/forum/71-nvidia...sa-19.html
I don’t take responsibility for the outcomes, but I wanted to share it.
Thanks for your effort, though. It looks like adjusting the values still increases voltage, but the software doesn’t log it. I managed to hit 1582.5/4100mhz at 1.287v, without any issues on the timespy test, though I ended up with a lower score due to my CPU. Overall, I’m satisfied with the results.
😀
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RayoDeGrande
04-28-2025, 09:11 PM #8

urbancamper
I've been looking for research GPUs that include voltage limiters. All the information I found suggests Gigabyte cards have them, which seems to be a hardware feature rather than software-based. That means you can't raise the voltage beyond a certain threshold, no matter what you try.
Here’s a link that might be useful:
http://www.overclock.net/forum/71-nvidia...sa-19.html
I don’t take responsibility for the outcomes, but I wanted to share it.
Thanks for your effort, though. It looks like adjusting the values still increases voltage, but the software doesn’t log it. I managed to hit 1582.5/4100mhz at 1.287v, without any issues on the timespy test, though I ended up with a lower score due to my CPU. Overall, I’m satisfied with the results.
😀