GTX 1080 Custom unlocked bios

Corbus

Would have posted it in the 1080 thread but i doubt many will be interested in flashing to a custom bios, so i made another thread to keep things more "snuggly" on the subject.

Here

The bios is not mine, i just took the link from hwbot forum.

If anyone is interested knowing it CAN brick/damage your card. Use the latest NVFlash (currently it's 5.292.0 )

Here

It will give more voltage headroom for further overclocking your nice card. But beware as the card will always work at that voltage ,my temps in idle sit at 42-ish degrees with fans at max. And as you guessed temps will go up drastically when in load so make sure you have an aggressive fan curve or maxed speed. Mine peaked at 80 degrees for now. but it sits mostly at 72-ish degrees. And the clock at 2.126 mhz. It's not that high but i don't plan on going any higher until i get better cooling. I'm positive i can go higher.

What i did notice is that the boost sits at higher frequencies than before, it's more heat tolerant.

If you have a reference card add more caution to the already risky procedure,i personally wouldn't recommend it as i didn't see anyone test it yet.

I know Dstealth uses it too on his Palit Jetstream.

If you decide on trying it out feel free to share your results here

. I'm especially curious on what a watercooled card can do.

gdallsk · 08-22-2016, 18:34 | posts: 33 | Location: UK

is this bios gonna work on founder's cards as well?

jarablue · 08-22-2016, 19:41 | posts: 63 | Location: Worcester, MA

I paid 714$ for my card. Ain't no way in hell I'm doing this.

But it is interesting. Thanks for posting.

Han2K · 08-22-2016, 20:07 | posts: 187 | Location: Spain

Better wait for a Bios Editor and know what are you flashing your card with.

haste · 08-31-2016, 20:37 | posts: 57 | Location: CZ

I really would like to see a Pascal BIOS editor, unfortunately it looks like it's not gonna happen any time soon. From what I've heard you won't be able to flash the edited BIOS to your card due to certificate check. Breaking the certificate might be quite complicated.

Dburgo · 08-31-2016, 22:01 | posts: 278 | Location: Santa Cruz

I'm so tempted but I get 2139mhz core and +535 memory at always under 57 degress. Thing is as I get closer to that threshold the clock backs down to 2126 then usually stays at 2114.. Its stable, I'm afraid of pushing it more and losing the stable speed I get now. I'm playing games in 8k 45 to 60 fps!

Shadowdane · 09-01-2016, 13:51 | posts: 1,197 | Location: Virginia

Yah not going to risk flashing some likely hex-edited BIOS onto my cards.

I hope a Pascal BIOS Editor comes out soon... I'd love to raise my power limits a bit as my cards bump up against the power limit pretty frequently.

Corbus · *Last edited by Corbus; 09-01-2016 at 18:14.*

Quote:

Originally Posted by haste

I really would like to see a Pascal BIOS editor, unfortunately it looks like it's not gonna happen any time soon. From what I've heard you won't be able to flash the edited BIOS to your card due to certificate check. Breaking the certificate might be quite complicated.

Using the latest nvflash breaks the certificate check , no problems, i flashed it back and forth 3 times already, i will wait for my accelero hybrid to arrive then i'll flash it for good.

First enter device manager> display adapters and disable the gpu, then :

1. Copy nvlash to c:\ and the bios you want flashed in the nvflash directory
2. Enter cmd prompt
3. Type cd c:\nvflash
4. Type nvflash -6 biosname.rom
5. Wait for it to finish the after the prompt restart pc and when you enter windows again re-enable the gpu in device manager.

haste · 09-01-2016, 15:42 | posts: 57 | Location: CZ

^ If I understand it correctly, the modified BIOS has to be signed with the certificate. If you can flash the BIOS, it means it's already signed.

Editor would have to sign every BIOS it creates. For that you probably need some NVIDIA app + private key.

Fender178 · 09-01-2016, 15:42 | posts: 2,987 | Location: Pennsylvania

If you have an EVGA GTX 1080 FTW it has dual BIOSes for this very purpose. If you flash the BIOS and it does not work out you can switch the BIOS back to the default one.

Corbus · 09-01-2016, 16:31 | posts: 2,069 | Location: Temeswar, Romania

Quote:

Originally Posted by haste

^ If I understand it correctly, the modified BIOS has to be signed with the certificate. If you can flash the BIOS, it means it's already signed.

Editor would have to sign every BIOS it creates. For that you probably need some NVIDIA app + private key.

http://forum.hwbot.org/showthread.php?t=159025 this is where i got the bios, you might find more info there if you're interested.

What i noticed is using an older vers of nvflash gives me a certificate error, the newest one works no problem.

haste · 09-01-2016, 16:46 | posts: 57 | Location: CZ

Quote:

Originally Posted by Corbus

http://forum.hwbot.org/showthread.php?t=159025 this is where i got the bios, you might find more info there if you're interested.

I don't want Strix BIOS. I only want to push the power limit a bit further, let's say 120% -> 130%. That is why I want BIOS Editor. I'd grab my FE BIOS from my card, modify it's Power Limit to 130% and flash it back

Corbus · *Last edited by Corbus; 09-01-2016 at 18:16.*

Quote:

Originally Posted by haste

I don't want Strix BIOS. I only want to push the power limit a bit further, let's say 120% -> 130%. That is why I want BIOS Editor. I'd grab my FE BIOS from my card, modify it's Power Limit to 130% and flash it back

Oh ok, didn't know you have a FE , then yea i don't recommend using this bios since of lack of power phases, this bios also increases voltage to 1.25 v /1.31 v. Also this bios doesn't have a power limit.

MrBonk · 09-02-2016, 23:58 | posts: 2,460 | Location: Oregon

I hope someone can come out with a BIOS editor sometime. If I upgrade to a 10 series card, I want to remove that stupid GPU boost crap.

Geryboy · 09-03-2016, 04:24 | posts: 1,936 | Location: Munich

Quote:

Originally Posted by MrBonk

I hope someone can come out with a BIOS editor sometime. If I upgrade to a 10 series card, I want to remove that stupid GPU boost crap.

only problem gpu boost does is the downclock at 60°C, as long as you're below ANY Clock you set will be stable and stay there like a rock.

haste · 09-03-2016, 13:03 | posts: 57 | Location: CZ

Quote:

Originally Posted by Geryboy

only problem gpu boost does is the downclock at 60°C, as long as you're below ANY Clock you set will be stable and stay there like a rock.

Certainly not with any standard BIOS. Voltage bins are adjusted all the way from -xxx to 90C with very fine step every 8C or so. Not even mentioning power cap dependecy.

Dburgo · 09-03-2016, 19:10 | posts: 278 | Location: Santa Cruz

My card downclocks @ 50C

I wish I could remove it because I know my timespy score would be much higher as the card throttles right after the demo and midway into the tests.. My card hardly goes higher than 52C anyways but it is enough that it goes back and forth between max boost and the downclock.

Shadowdane · 09-03-2016, 20:16 | posts: 1,197 | Location: Virginia

Quote:

Originally Posted by Dburgo

My card downclocks @ 50C

I wish I could remove it because I know my timespy score would be much higher as the card throttles right after the demo and midway into the tests.. My card hardly goes higher than 52C anyways but it is enough that it goes back and forth between max boost and the downclock.

Pascal cards have dynamic clocks. They change in 13Mhz steps for each step in voltage. A minor 13-26Mhz change in your clockspeed isn't going to change your scores much. That would maybe amount to 0.2-0.5fps difference.

Now if your card was dropping down below it's advertised boost clock of 1860Mhz or below... that would infact be downclocking.

Anandtech had a good graph of how much clocks, voltage drop with temperature.

Dburgo · 09-06-2016, 03:43 | posts: 278 | Location: Santa Cruz

Quote:

Originally Posted by Shadowdane

Pascal cards have dynamic clocks. They change in 13Mhz steps for each step in voltage. A minor 13-26Mhz change in your clockspeed isn't going to change your scores much. That would maybe amount to 0.2-0.5fps difference.

Now if your card was dropping down below it's advertised boost clock of 1860Mhz or below... that would infact be downclocking.

Anandtech had a good graph of how much clocks, voltage drop with temperature.

Are those readings from a reference card? Because watching my card's speed drop in relationship to temperature is much different than those readings in the graph. Like I said, at 50C the card "throttles" back and I would actually like to see the throttle occurring at a much higher temp. Is that possible? Is there a BIOS known that changes the Pascal "throttle" limit/stages/occurance?

Netherwind · 09-06-2016, 13:20 | posts: 4,214 | Location: Sweden

Quote:

Originally Posted by Dburgo

Are those readings from a reference card? Because watching my card's speed drop in relationship to temperature is much different than those readings in the graph. Like I said, at 50C the card "throttles" back and I would actually like to see the throttle occurring at a much higher temp. Is that possible? Is there a BIOS known that changes the Pascal "throttle" limit/stages/occurance?

Must be from an FE card. 3rd party cooler cards also throttle down but not that much.

Shadowdane · 09-06-2016, 14:24 | posts: 1,197 | Location: Virginia

Quote:

Originally Posted by Netherwind

Must be from an FE card. 3rd party cooler cards also throttle down but not that much.

Yes it was from a FE card.. that's basically worse case scenario. I think they will drop about 70-90Mhz under normal operation depending on gpu load, temps and power limits.

Clocks will drop more drastically if you hit the temp limit.. tested it once by setting a constant 30% fan speed, my cards dropped from 2038Mhz to around ~1700Mhz when it hit 90-91C. Well 1708Mhz is the base clock, so seems it drops to that when it nears the temp limit. It dropped another 400Mhz by the time it hit 94C when I killed the benchmark loop.

Netherwind · 09-06-2016, 16:20 | posts: 4,214 | Location: Sweden

Quote:

Originally Posted by Shadowdane

Yes it was from a FE card.. that's basically worse case scenario. I think they will drop about 70-90Mhz under normal operation depending on gpu load, temps and power limits.

Clocks will drop more drastically if you hit the temp limit.. tested it once by setting a constant 30% fan speed, my cards dropped from 2038Mhz to around ~1700Mhz when it hit 90-91C. Well 1708Mhz is the base clock, so seems it drops to that when it nears the temp limit. It dropped another 400Mhz by the time it hit 94C when I killed the benchmark loop.

Wow, that's a major loss in GPU speed. Interesting though that it did endure up to 94 degrees.

Dburgo · 09-06-2016, 17:03 | posts: 278 | Location: Santa Cruz

They really are not allowing for maximum performance with this throttle engaging at such a relatively low temperature IMO. My EVGA can OC to 2136 and stay ther until 50C. I cannot get more out of it with the same amount of stability I have with that speed. Unfortunately, I end up playing @ 2114 or in most case just at or right under 2100. Due to the throttle keeping the card @ 50C. I always use the maximum fan speed.

Corbus · 09-06-2016, 18:47 | posts: 2,069 | Location: Temeswar, Romania

Quote:

Originally Posted by Dburgo

They really are not allowing for maximum performance with this throttle engaging at such a relatively low temperature IMO. My EVGA can OC to 2136 and stay ther until 50C. I cannot get more out of it with the same amount of stability I have with that speed. Unfortunately, I end up playing @ 2114 or in most case just at or right under 2100. Due to the throttle keeping the card @ 50C. I always use the maximum fan speed.

And what is your temp at 100% fan an with 2114mhz?

CronosX9x9X · 09-07-2016, 08:58 | posts: 391

I know this is for the 1080 but downclocking at 60c? Isn't that alil bit low?. My X has a 126% power limit in AB and it never even under heavy load never goes down from 1936 or more in my OC config.

I personally would just like the better power limit since mine has the 2 phase seems like it doesn't do all that much for OC. But I'm pretty happy with the performance except in the Battlefield 1 beta where I can't have DSR or have all settings on max(have to turn down lighting to high), Are any of you with 1080's tried the BF1 beta and had limiting performance like that at all?.