I'm always scared of doing these things

I gave it a try on my vanilla GTX 1080 (08G-P4-6181-xx).
 
I had no problems flashing, rebooting, and reinstalling the video drivers... All went fine.  But performance was terrible in comparison to the stock BIOS.  It kept a consistent 99% GPU load and kept a consistent max boost without hitting any perfcap reason a single time, and thus the performance should have been better, but instead the performance was about 9% worse in Unigine Superposition benchmark.  I tried a bunch of different things and tweaks and overclock increases and overclock decreases and voltage up and voltage down thinking that I must have messed something up.  Reinstalled stuff.  Nope; still performing badly.  The GPU is watercooled and the GPU core temperature was 41-42*c with the Strix BIOS and was 41-42*c with the stock EVGA BIOS; so that wasn't the issue.  Went back to the stock BIOS, reinstalled the video driver, and performance is back where it was.  
 
So, my conclusion is the lack of power and temp target monitoring in the Strix BIOS must cause some kind of invisible issue with the driver with these cards.  Very strange.

ty_ger07
I gave it a try on my vanilla GTX 1080 (08G-P4-6181-xx).
 
I had no problems flashing, rebooting, and reinstalling the video drivers... All went fine.  But performance was terrible in comparison to the stock BIOS.  It kept a consistent 99% GPU load and kept a consistent max boost without hitting any perfcap reason a single time, and thus the performance should have been better, but instead the performance was about 9% worse in Unigine Superposition benchmark.  I tried a bunch of different things and tweaks and overclock increases and overclock decreases and voltage up and voltage down thinking that I must have messed something up.  Reinstalled stuff.  Nope; still performing badly.  The GPU is watercooled and the GPU core temperature was 41-42*c with the Strix BIOS and was 41-42*c with the stock EVGA BIOS; so that wasn't the issue.  Went back to the stock BIOS, reinstalled the video driver, and performance is back where it was.  
 
So, my conclusion is the lack of power and temp target monitoring in the Strix BIOS must cause some kind of invisible issue with the driver with these cards.  Very strange.

i have the Strix T4 Bios on both my 08G-P4-6286-KR(EK Blocked) not noticed anything as you have, but will do some testing closer to the weekend

ty_ger07
I encourage you to compare.  You might be missing out on some frames.  But who knows; maybe it depends on each video card model and maybe yours likes the Strix BIOS.
 
All I know is that I am not the only person in this thread who said the same thing.  Essentially, that being: the flash works fine, the card stops dropping boost as much or as often, but the performance is lower for some unknown reason.  There are a few of us now who have tried the Strix BIOS and have gone back to the EVGA BIOS, for the same reason.

Oh i will  I don't run the T4 bios all the time as that is not what that bios is for, it is just used in specific scenarios, 1 of my 6286-KR is a late (9)2016 that was identified with the "issue" and the other 6286-KR early (4)/2017 only real difference between my 2 1080s is the bios chips, I certainly would not be running the T4 bios 24/7 that would just be silly as i am almost positive the T4 is for LN2 use
 
"performance is lower for some unknown reason" because the cards don't like the voltage i.e 1.2+ and/or the heat
 

HeavyHemi

ty_ger07
I gave it a try on my vanilla GTX 1080 (08G-P4-6181-xx).
 
I had no problems flashing, rebooting, and reinstalling the video drivers... All went fine.  But performance was terrible in comparison to the stock BIOS.  It kept a consistent 99% GPU load and kept a consistent max boost without hitting any perfcap reason a single time, and thus the performance should have been better, but instead the performance was about 9% worse in Unigine Superposition benchmark.  I tried a bunch of different things and tweaks and overclock increases and overclock decreases and voltage up and voltage down thinking that I must have messed something up.  Reinstalled stuff.  Nope; still performing badly.  The GPU is watercooled and the GPU core temperature was 41-42*c with the Strix BIOS and was 41-42*c with the stock EVGA BIOS; so that wasn't the issue.  Went back to the stock BIOS, reinstalled the video driver, and performance is back where it was.  
 
So, my conclusion is the lack of power and temp target monitoring in the Strix BIOS must cause some kind of invisible issue with the driver with these cards.  Very strange.

Pretty much my experience flashing the XOC BIOS on a 1080 Ti.  Fan control is wonky, voltage slider is disabled. I've been able to tweak more performance out of the stock BIOS.

+1

HeavyHemi

ty_ger07
I gave it a try on my vanilla GTX 1080 (08G-P4-6181-xx).
 
I had no problems flashing, rebooting, and reinstalling the video drivers... All went fine.  But performance was terrible in comparison to the stock BIOS.  It kept a consistent 99% GPU load and kept a consistent max boost without hitting any perfcap reason a single time, and thus the performance should have been better, but instead the performance was about 9% worse in Unigine Superposition benchmark.  I tried a bunch of different things and tweaks and overclock increases and overclock decreases and voltage up and voltage down thinking that I must have messed something up.  Reinstalled stuff.  Nope; still performing badly.  The GPU is watercooled and the GPU core temperature was 41-42*c with the Strix BIOS and was 41-42*c with the stock EVGA BIOS; so that wasn't the issue.  Went back to the stock BIOS, reinstalled the video driver, and performance is back where it was.  
 
So, my conclusion is the lack of power and temp target monitoring in the Strix BIOS must cause some kind of invisible issue with the driver with these cards.  Very strange.

Pretty much my experience flashing the XOC BIOS on a 1080 Ti.  Fan control is wonky, voltage slider is disabled. I've been able to tweak more performance out of the stock BIOS.

Interesting.  For me, temp target and power target adjustment were disabled and power monitoring was no longer working properly (disabled in most apps and NVIDIA-SMI said the power consumption was nearly 400W under load; so obviously wrong), but voltage adjustment was still enabled and worked.  It's interesting that using the Strix BIOS, some are restricted in one way and some are restricted in a different way.  With the Strix BIOS, my card was maintaining constant max boost clock and constant 99% utilization and I was able to crank the voltage all the way up and get a slightly higher max boost frequency without it dipping down under load due to power limit, but I had no way to view the actual power consumption; so I had to assume that it wasn't hitting a power limit since the boost wasn't dropping and the perfcap reason was blank.
I guess, to sum it up: it's not designed for these cards and will likely not work properly.

baconinabun

ty_ger07

baconinabun
"performance is lower for some unknown reason" because the cards don't like the voltage i.e 1.2+ and/or the heat

Well, in my case, and in the case of at least one other person in this thread, we already mentioned our cards are watercooled and that the voltage and temperature doesn't appear to be any different.  So, it's not that.  At least not for some of us with some cards.  The only difference the Strix BIOS does for me is that I don't have any perfcap reason, the boost is constant at max instead of dropping fluctuating down ~50Mhz intermittently, the temperature is the same as before, and the benchmark score is 6-9% lower.

sorry i should rephrase that, with the T4 it pushed a top voltage on my pair up to 1.12v-1.15v(depending on what they are up to) but i know that the T4 is trying to give it more voltage it just hit a ceiling, like you were saying it is maybe different as you only have 1x8pin power connector and most likely started hitting a different ceiling a lot quicker, Pascal is a ass of an architecture and judging by the goings on with this 70ti it's only going to get worse in all new iterations  

That's a really good point.  It isn't heading in a great direction for the masses, is it?  Maybe overclocking is headed back towards the elitist direction.  It was starting to get pretty easy; and still is, for the most part.
 
At some point, I will probably do this mod.  It looks so simple.

 
As it is, I can't overclock higher due to hitting vrel.  And I can't increase core voltage any more than a modest amount due to hitting power limit.  So, I am bouncing off vrel and/or power limit constantly at 2100 MHz core.
 
It's not like I really need the performance.  I already have too much for my 1080P monitor.  But, it's a disease.

ty_ger07
I gave it a try on my vanilla GTX 1080 ().
 
I had no problems flashing, rebooting, and reinstalling the video drivers... All went fine.  But performance was terrible in comparison to the stock BIOS.  It kept a consistent 99% GPU load and kept a consistent max boost without hitting any perfcap reason a single time, and thus the performance should have been better, but instead the performance was about 9% worse in Unigine Superposition benchmark.  I tried a bunch of different things and tweaks and overclock increases and overclock decreases and voltage up and voltage down thinking that I must have messed something up.  Reinstalled stuff.  Nope; still performing badly.  The GPU is watercooled and the GPU core temperature was 41-42*c with the Strix BIOS and was 41-42*c with the stock EVGA BIOS; so that wasn't the issue.  Went back to the stock BIOS, reinstalled the video driver, and performance is back where it was.  
 
So, my conclusion is the lack of power and temp target monitoring in the Strix BIOS must cause some kind of invisible issue with the driver with these cards.  Very strange.

Can I get a .rom file of your BIOS for 08G-P4-6161-xx card

Oh sorry that was a typo haha i meant the 6181 thats the ACX 3.0 1080 right? I flashed my bios but me being a genius forgot to make a back-up and now the memory type is “unknown” in gpuz

Thanks I just flashed the BIOS... well memory type is still unknown and bandwidth still halved... looks like I might need an RMA or this is just one expensive paperweight 

Still the same result.. the 6181_Orig is the same one EVGA support sent me but seems my Memory type still is "Unknown" instead of GDDR5X(Micron) Still waiting for their reply on my issue. I'm thinking this might be an RMA thing. technically it ain't bricked just that the vRAM isn't detected and bandwidth halved, everything else boosts except for memory clock which is stuck at 405 MHz whatever load I put on the GPU or adding a +1000 MHz offset. Thanks for the reply though