kim666
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anyone flashed this 380W bios from Galax KFA? https://quasarzone.com/bbs/qc_qsz/views/975417It appears to use same VRM as XC3, and allows 380W. Otherwise there is Zotac Trinity and Amp Holo with 385W, but i heard those have pcie slot limitation. 3090 XC3 used to have a 390W compatible KFA bios
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kim666
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/29 02:32:28
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btw does vbios of gpu takes into account different vrm setup or just the power pins setup?
ie. since XC3 uses the old analog UP9511r, better to avoid those digital VRM bios?
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rjohnson11
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/29 02:59:21
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Please do not flash your EVGA video card with a BIOs not intended for it. If the 3rd party BIOs should brick the card then your warranty might be void.
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CraptacularOne
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/29 09:33:22
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The reality of the matter is that even if it did work adding another 14w will net you next to nothing in performance headroom. It's not worth the risk of potentially bricking your card to go from 366w to 380w.
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nomoss
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/29 11:49:41
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☄ Helpfulby kim666 2021/12/29 17:06:30
PCIE 8oin = 150 watts x 2 = 300 watts.
Add PCIE slot + 75 watts
Total input watts = 375
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talon951
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/29 12:03:32
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The 3080ti EVGA cards all use the NCP81610 controller. Not the uP9512R controller. https://www.overclock.net/threads/official-nvidia-rtx-3080-ti-owners-club.1791823/ Unfortunately that doesn't leave a lot of good options. Actually none for 2x8pin from what I've seen people trying. Probably the best bios for the XC3 is the updated XC3 bios EVGA released that can actually hit 366w (unlike a lot of the 2x8 pin 3080ti's out there). Sorry, but I think 2x8pin 3080ti owners are SOL for more power. Need to move up to a 3x8pin or a 3090.
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kraade
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/29 14:04:53
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it would be a shame to brick your card with another mfg bios on it for not practical benefit if it did work.
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talon951
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/29 14:31:10
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The funny thing is I've seen more reports of PX1 bricking cards than people manually flashing bios with NVFlash.
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Fennario
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/29 14:41:47
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Difference is that those who did it via PX1 were able to RMA and get replacement cards. Bricking the card with a Non-EVGA BIOS probably makes it a paperweight.
post edited by Fennario - 2021/12/29 14:44:23
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talon951
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/29 16:01:57
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Well I don't know about PX1, but a bad flash from NVFlash can almost always be recovered by booting from a different display adapter. No need to RMA.
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kim666
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/29 17:12:54
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talon951
The 3080ti EVGA cards all use the NCP81610 controller. Not the uP9512R controller.
https://www.overclock.net/threads/official-nvidia-rtx-3080-ti-owners-club.1791823/
Unfortunately that doesn't leave a lot of good options. Actually none for 2x8pin from what I've seen people trying. Probably the best bios for the XC3 is the updated XC3 bios EVGA released that can actually hit 366w (unlike a lot of the 2x8 pin 3080ti's out there).
Sorry, but I think 2x8pin 3080ti owners are SOL for more power. Need to move up to a 3x8pin or a 3090.
sadly that list is wrong, 3080ti XC3 still uses the old up9511R, not even the digital up9512R. at least for mine it seems XC3 and 2x8pin 3080ti are artificially leaving at least 5% performance off the table by locking them down to 350-366W vbios. The older 2x8pin 3090 works well at 390W KFA bios. My fear is not a fail nvflash, what happens if the fuses or something else fail later, how are we to flash back to eVGA bios for rma. that is if we can even get 385W from other bios. 
post edited by kim666 - 2021/12/29 17:14:01
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CraptacularOne
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/29 17:25:24
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kim666
talon951
The 3080ti EVGA cards all use the NCP81610 controller. Not the uP9512R controller.
https://www.overclock.net/threads/official-nvidia-rtx-3080-ti-owners-club.1791823/
Unfortunately that doesn't leave a lot of good options. Actually none for 2x8pin from what I've seen people trying. Probably the best bios for the XC3 is the updated XC3 bios EVGA released that can actually hit 366w (unlike a lot of the 2x8 pin 3080ti's out there).
Sorry, but I think 2x8pin 3080ti owners are SOL for more power. Need to move up to a 3x8pin or a 3090.
sadly that list is wrong, 3080ti XC3 still uses the old up9511R, not even the digital up9512R. at least for mine
it seems XC3 and 2x8pin 3080ti are artificially leaving at least 5% performance off the table by locking them down to 350-366W vbios. The older 2x8pin 3090 works well at 390W KFA bios.
My fear is not a fail nvflash, what happens if the fuses or something else fail later, how are we to flash back to eVGA bios for rma. that is if we can even get 385W from other bios.
You aren't going to get a 5% increase in performance by adding 3.8% more power. Poor math aside, I really don't know what you're stressing about, it's not like you will ever see or even be able to tell a difference between your card at 366ww and 380w. A general rule of thumb is if you can't afford to break it, don't do whatever it is you are planning on doing to your card. If you brick the card with the incorrect BIOS on it, it will be rejected for RMA.
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talon951
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/29 18:54:19
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kim666
sadly that list is wrong, 3080ti XC3 still uses the old up9511R, not even the digital up9512R. at least for mine
it seems XC3 and 2x8pin 3080ti are artificially leaving at least 5% performance off the table by locking them down to 350-366W vbios. The older 2x8pin 3090 works well at 390W KFA bios.
My fear is not a fail nvflash, what happens if the fuses or something else fail later, how are we to flash back to eVGA bios for rma. that is if we can even get 385W from other bios.
Some have tried several of those bios over on OCN, but nobody reported any significant gains. And yes the bigger risk may be having the card break while running a different bios. Not sure if they go to the level of pulling the current bios or not, but I wouldn't send mine in anyway in that case. Really isn't worth it unless you can afford to lose it (and have a backup card since you can't buy another one easily in the near (or maybe distant) future).
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redflag9000
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/29 21:38:10
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☼ Best Answerby kim666 2021/12/29 23:34:00
Usually I dont spring the extra cash for the FTW3 series, but in the case of the 3080Ti it is actually worth it because 3-pin cards can accept the Galexy HOF BIOS which has no power limit. Well technically it's 1000w, but internal limits will stop the card around 550w. There arnt really any good 2-pin BIOSes out there so you want a 3-pin card if going with 3080Ti. Other than that, you can do a shunt mod. A shunt mod will boost the power limit to around 450w in which internal limits kick in. You can view OC.net for info on how to mod the card if that's what you want to do. Also dont worry about all the naysayers threatening you with no RMA if you brick your card. If you corrupt the BIOS during a flash (which is not common btw), you can flash it using a different display adapter (e.g. the integrated one in your CPU. You dont need to be using the card you're flashing. So if the display adapter wont boot, just switch your DP/ HDMI cable over to your integrated iGPU and then flash the video card again with the stock BIOS. ALWAYS back up your BIOS before flashing so you can roll back if needed.
post edited by redflag9000 - 2021/12/29 21:41:40
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Fennario
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/30 00:02:46
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How do you reset the BIOS after the card pops using a non-EVGA version without power limits?
How do you RMA if you do a shunt mod?
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kim666
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/30 01:46:34
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redflag9000
Usually I dont spring the extra cash for the FTW3 series, but in the case of the 3080Ti it is actually worth it because 3-pin cards can accept the Galexy HOF BIOS which has no power limit. Well technically it's 1000w, but internal limits will stop the card around 550w. There arnt really any good 2-pin BIOSes out there so you want a 3-pin card if going with 3080Ti. Other than that, you can do a shunt mod. A shunt mod will boost the power limit to around 450w in which internal limits kick in. You can view OC.net for info on how to mod the card if that's what you want to do.
Also dont worry about all the naysayers threatening you with no RMA if you brick your card. If you corrupt the BIOS during a flash (which is not common btw), you can flash it using a different display adapter (e.g. the integrated one in your CPU. You dont need to be using the card you're flashing. So if the display adapter wont boot, just switch your DP/ HDMI cable over to your integrated iGPU and then flash the video card again with the stock BIOS. ALWAYS back up your BIOS before flashing so you can roll back if needed.
Lol i guess if the gpu dont boot, evga cannot detect the bios in used? Say dead to blown fuses or vram defects. I really wish Evga release a 390W unofficial xc3 bios for 3080ti. Maybe at the later stage for Ampere life. 3080Ti XC3 and 3090 XC3 is only different by 1 phase of VRAM mosfet/chokes on the pcb afaics. It can easily get >14K on PR...but with the right bios power value given Another 5% of in game performance is not to be schoff away at. We could be 6fps away from 120hz or 3 fps away from 60hz in CP2077  Why do this to an already limited supply era..? For the gamers wut?
post edited by kim666 - 2021/12/30 01:48:28
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talon951
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/30 03:30:42
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It is possible to read the bios with the right hardware when the card isn't functional, but no idea if they would go to that level of effort.
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kim666
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/30 07:08:20
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i wish evga ceo reading this hear the cries of 3080ti pc gamer and just send us a 390w bios. that KFA has shown was possible for 3090.
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nosomo
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/30 14:11:50
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kim666
i wish evga ceo reading this hear the cries of 3080ti pc gamer and just send us a 390w bios. that KFA has shown was possible for 3090.
The hardware has a 375w limit per specifications. The card is performing just fine. You'd get better performance keeping the core below 50c than you would adding extra power. It's truly a diminishing returns thing. Why increase loads on card of 20% or more to gain 2% performance. That's just not a smart move. Work on keeping the memory cooler and finding extra performance there.
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CraptacularOne
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/30 14:30:46
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kim666
i wish evga ceo reading this hear the cries of 3080ti pc gamer and just send us a 390w bios. that KFA has shown was possible for 3090.
Again, adding a paltry bit more power would do next to nothing to improve performance in any noticeable way. Secondly EVGA will not release a BIOS that willfully exceeds what the PCIe cables and PCIe slot can safely handle. If they did, they would open themselves to all manner of liability and lawsuits.
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nosomo
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/30 14:33:10
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CraptacularOne
Again, adding a paltry bit more power would do next to nothing to improve performance in any noticeable way. Secondly EVGA will not release a BIOS that willfully exceeds what the PCIe cables and PCIe slot can safely handle. If they did, they would open themselves to all manner of liability and lawsuits.
'looks at 1kw bios for kingpin' ... not too sure about that one
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CraptacularOne
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/30 14:36:35
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nosomo
CraptacularOne
Again, adding a paltry bit more power would do next to nothing to improve performance in any noticeable way. Secondly EVGA will not release a BIOS that willfully exceeds what the PCIe cables and PCIe slot can safely handle. If they did, they would open themselves to all manner of liability and lawsuits.
'looks at 1kw bios for kingpin' ... not too sure about that one
Obviously that's intended for LN2 and for extreme overclocking. Flashing that BIOS to another card with a weaker VRM will void your warranty if you kill it.
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talon951
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/30 14:46:14
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CraptacularOne
kim666
i wish evga ceo reading this hear the cries of 3080ti pc gamer and just send us a 390w bios. that KFA has shown was possible for 3090.
Again, adding a paltry bit more power would do next to nothing to improve performance in any noticeable way. Secondly EVGA will not release a BIOS that willfully exceeds what the PCIe cables and PCIe slot can safely handle. If they did, they would open themselves to all manner of liability and lawsuits.
If there were true, then there wouldn't be 390w 2x8pin bios. Gigabyte and Galax both have one. Then there are all of the original 3090 FTW3's that could hit 80w+ on the PCIE slot. And my 3080ti FTW3 that easily exceeds 150w on 8pin #2 on the stock bios.
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talon951
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Re: How to get more power from 3080Ti XC3? (>366W)
2021/12/30 14:48:37
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nosomo
CraptacularOne
Again, adding a paltry bit more power would do next to nothing to improve performance in any noticeable way. Secondly EVGA will not release a BIOS that willfully exceeds what the PCIe cables and PCIe slot can safely handle. If they did, they would open themselves to all manner of liability and lawsuits.
'looks at 1kw bios for kingpin' ... not too sure about that one
They've actively discouraged the KP owners from sharing that bios. Only takes one person to upload it with GPUZ though. Took quite a long time for someone to leak the newer reBar enabled version.
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kim666
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Re: How to get more power from 3080Ti XC3? (>366W)
2022/01/02 08:33:35
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CraptacularOne
kim666
i wish evga ceo reading this hear the cries of 3080ti pc gamer and just send us a 390w bios. that KFA has shown was possible for 3090.
Again, adding a paltry bit more power would do next to nothing to improve performance in any noticeable way. Secondly EVGA will not release a BIOS that willfully exceeds what the PCIe cables and PCIe slot can safely handle. If they did, they would open themselves to all manner of liability and lawsuits.
a 385w bios will give me 5% uplift and i can finally hit above 14K PR It is just an artifical limitation when 3090 with similar VRM have a 390w bios
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ty_ger07
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Re: How to get more power from 3080Ti XC3? (>366W)
2022/01/02 10:49:46
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kim666
CraptacularOne
kim666
i wish evga ceo reading this hear the cries of 3080ti pc gamer and just send us a 390w bios. that KFA has shown was possible for 3090.
Again, adding a paltry bit more power would do next to nothing to improve performance in any noticeable way. Secondly EVGA will not release a BIOS that willfully exceeds what the PCIe cables and PCIe slot can safely handle. If they did, they would open themselves to all manner of liability and lawsuits.
a 385w bios will give me 5% uplift and i can finally hit above 14K PR
It is just an artifical limitation when 3090 with similar VRM have a 390w bios
Fine. Take matters into your own hands, void your warranty, and modify your video card.
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