Util to edit the 6800 bios's?

[WeStSiDePLaYa]

any chance on seeing vmem voltage on this soon?

[martinakerman]

1) Can i flash a 6800U bios from a CD in stead of a floppy?
i mean, i use a start up cd, DOS and i got nflash and the new bios in a cd and run it from cd...i think its the same isnt it?
2) i need to flash to 450-1200 1.5v what bios should i use to mod on ? any? some rev.? like .15 or something?
3) do i have to set 2d and 3d at the same speed?
4) in 2d is it not recommended to increase to 1.3v ? (core 450mhz)
5) Has Fast Write to be disable? my Mb is an Abit Ic7-g has no FW option, is enough from Coolbits2?
6) there are people that cant flash to E-vga 6800 ultra extreme edition original, (450/1200 3d) (400/1100 2d) they get ID Mistach, even using all commands.
http://www.mvktech.net/index.php?option=com_remository&Itemid=26&func=fileinfo&parent=folder&filecatid=68
7) does sombody tired overclcoking from bios and/or soft (from windows) i mean...
core default 400 and rising from win.Soft.(coolbits) to max speed reached, and tried same speed from bios, and see if you got same results?
8) be carefull if u wanna by a 6800 ultra, there are a LOT of vendors like ASUS, ALBATRON, LEADTEK, GAINWORD etc that in some cards are using 2.0ns memories on Ultra´s in stead of 1.6ns (600mhz)
9)Thankz

[martinakerman]

And
10) Whay using the Nvidia bios editor, 1.5 or 1.6 etc.
Once you mod the Vcore, if you edit again the bios you cant see some voltage again?
Example... original bios u see 1.1,1.3,1.4,1.5 v i set 1.5..Close program, open, edit the modded bios and now i see 1.1,1.3,1.5 v.

[aoc007]

And
10) Whay using the Nvidia bios editor, 1.5 or 1.6 etc.
Once you mod the Vcore, if you edit again the bios you cant see some voltage again?
Example... original bios u see 1.1,1.3,1.4,1.5 v i set 1.5..Close program, open, edit the modded bios and now i see 1.1,1.3,1.5 v.

I have the same problem.

[Mental]

It is no problem at all to boot from a cd.
Just find a DOS-bootable cd on the Internet, boot up and type:
C:
CD \BIOS
nvflash -f mybios.rom

;) Works like a charm. Or something :S

Well...

xtremetheme, your biostool is great... I have a feature request. I think the 6800 cards has an operating range of 25C - 125C. To be able to change this would be awesome. I think Gainward has solved this problem though, cause they're selling waterchilled 6800Ultras and I suppose they start.

With my watercooling, the core does not reach 25C. ( It's cold where I live in Norway). Room temperature is ~ 20C. The problem is, the card woun't start with such a low temperature and when the graphicscard doesn't start, the computer doesn't.

[disco_bazoon]

How much voltage does GT cards like? I mean, with proper cooling 1.5v should be okay, right?

@Mental, hey fellow Norwegian :D

[Mental]

Hello disco_bazoon :)

The GT handle 1.5V just fine (would've handled 1.6 and 1.7V just fine too with proper cooling). My 6800GT with a reference ALU-heatsink did handle 1.4V. (1.3V standard) Had an increase of about 4C (to 90C :S) while running 3Dmark. Though I've never tested 1.5V I think you'd better use a better cooler than the standard reference for this.

[aoc007]

How much voltage does GT cards like? I mean, with proper cooling 1.5v should be okay, right?

@Mental, hey fellow Norwegian :D

With proper cooling 1.8v would be okay :D

[disco_bazoon]

I tried some today, but I got a message saying "could not open I/O device mod.bin" or something like that. Why's that happening? :S
Oh, and I used the commad: nvflash -p -u -f mod.bin on nvflash 4.42.

[disco_bazoon]

lol, okay, I sorted it. I wrote "file.bin", instead of "file.rom". I'm too used to mobo bioses :D

[disco_bazoon]

Hhmm... is anyone here having problems with 3dmark 01 after the bios flash?
I flashed mine to 1.4v, and everything seemed excellent. I gained over 20MHz on the core, from 410 to 430. 3dmark 05 ran fine, same with 03, but whern the turn came to 01, it just instantly locked up. Okay, so I lowered the clocks, but still the same thing.
I lower more and more, but it still the same thing. So, after alot of trying, I have come to the conclusion that I can't keep both core and memory overclocked at the same when running 01. If only one of them are clocked at the time, it runs fine. But as soon as I clock both of them it freezes. Really, really weird! Tried with 4 sets of drivers, and about everything I can think of. Everything else I've tried is fine, including: 3Dmark 05 and 03, Far Cry, Doom 3, Call of Duty UO.
Any ideas? :/

[THunDA]

Hhmm... is anyone here having problems with 3dmark 01 after the bios flash?
I flashed mine to 1.4v, and everything seemed excellent. I gained over 20MHz on the core, from 410 to 430. 3dmark 05 ran fine, same with 03, but whern the turn came to 01, it just instantly locked up. Okay, so I lowered the clocks, but still the same thing.
I lower more and more, but it still the same thing. So, after alot of trying, I have come to the conclusion that I can't keep both core and memory overclocked at the same when running 01. If only one of them are clocked at the time, it runs fine. But as soon as I clock both of them it freezes. Really, really weird! Tried with 4 sets of drivers, and about everything I can think of. Everything else I've tried is fine, including: 3Dmark 05 and 03, Far Cry, Doom 3, Call of Duty UO.
Any ideas? :/


Disco is a freind of mine.. and I just flashed too .. Having the same problems also.. Dam 3dmark01.. !!

[xgman]

01 is yesterdays technoloy. Just move on.

[THunDA]

01 is yesterdays technoloy. Just move on.


lol.. Oh great thanks for the help :rolleyes: ..

Well, actually I like to use it for a test of system stability.. most of the new ones are more video card dependent.. Yes I know there are other tests but i was wondering why it was only doing it with that.. I guess more of a curiousity thing too..

O-well.. nm..

[xgman]

When I try to flash with 5.08 or 4.21 even, I get "PCI subsystem mismatch" 10DE.0000 IS rom AND 10DE.0205 is CHIP. I am trying to flash a PNY 6800U to get higher voltages and used the Nvidai n345.rom as a starting point and tthen saved the new voltages through omnifxbios program. Any ideas what went wrong? Thanks.

edit: the evgabios posted earlier here seemed to flash ok, but the 3d/2d overclock settings I saved in omnibios didn't seem to stick in the Nvida control panel (driver ver 66.81)

[IronFire]

Like many others I want to thank Extreme theme for his great program, I now have my BFG 6800 Ultra running at 475/1230 Mhz which although not amazing is a nice boost :)

Thanks again.

[duKe]

mh, one question. i wanted to edit the bios of my msi 6800nu with omniextreme.

but when i open the bios it looks like this:

http://img.photobucket.com/albums/v347/dukatenscheisser/Unbenannt.jpg
does this mean that the voltage is already set to 1.4V?

:confused:

[duKe]

anyone?

[aoc007]

Yes, unless theres an error and I doubt it, its at 1.4.

[duKe]

i have downloaded 6800nu bioses from asus, msi and bfg from mvktech and they all show 1.4V in 3d. so i guess thats right. :confused:

[aoc007]

that seems weird that it would use more voltage than the GT, try pming xtremetheme it might be a omniextreme error.

[dr_sharp]

I registered on this forum to thank everyone that has contributed to this thread... especially extremetheme and mavke. I'll be flashing (GT->moddedGT@U) next week and though i've never flashed anything before the info in this thread is more than enough to cover the entire process (including modding).

btw Mavke... wonderful site. Thanks again.

[Riemen]

@Xtremetheme:
What's about timings? Will you ever release a new Version of your tool, that allows to edit the 6800-timings? It's proofen, that a card with GT-bios perfoms better, than one with Ultra-bios at the same clock-settings. It must be because of faster Timings on a GT-bios. But you eventually can clock higher with a Ultra-bios.
So what's about comparing a GT Bios with an Ultra-Bios to find out where the timings are stored and add a possibility to edit them to your tool?

[stealthbomber]

According to Unwinder (Rivatuner maker) over at the guru3d forums it may be possible to mod the 6800LE/NU/GT/U bios into ignoring the hardware pipeline bridges at the back of the card so that all/selective pipelines are enabled by default without having Rivatuner installed: http://forums.guru3d.com/showthread.php?threadid=110067

Would you be able to add a feature like this into your editor, as well as adding an option for the user to alter the GPU temp shutdown temperature value?

Unwinder talked about adding a script to allow this (after user identified the working pipelines and VP), maybe you can work with Unwinder to allow the exported data from the next version of Rinvatuner imported into your bios editor for modding to unlock the chosen pipelines/VP by default.

:banana: :banana: :banana: :banana:

[stealthbomber]

The script is here and it works! ^^^

:banana: :banana: :banana: :banana:

[sponge bob]

#1 post
i need some Know how, i just buyed my pny 6800gt it overclocks crappy like 404/1,1 i think my 300w aopen is problem, but i need to know how can i flash it to ultra speeds.. i changed my bios but how i flash it? :confused:
sry for my bad english but i hope u can understand :p:

[eclypse]

Anyway to get 1.6-1.7v as an option? My XFX 6800 Ultra SLI super water cooled only moved from 450 to 477 with the max 1.5v on the 3d. I maxed all the voltage options and can only get the ram to 1230Mhz.

[[XC] moddolicous]

#1 post
i need some Know how, i just buyed my pny 6800gt it overclocks crappy like 404/1,1 i think my 300w aopen is problem, but i need to know how can i flash it to ultra speeds.. i changed my bios but how i flash it? :confused:
sry for my bad english but i hope u can understand :p:
You can use nvflash to flash, but you should first upgrade your PSU.

[[XC] moddolicous]

Anyway to get 1.6-1.7v as an option? My XFX 6800 Ultra SLI super water cooled only moved from 450 to 477 with the max 1.5v on the 3d. I maxed all the voltage options and can only get the ram to 1230Mhz.
I think the max you can get in the bios is only 1.5, but you might be able to do a pencil mod.
http://www.vr-zone.com/index.cgi?i=926&s=1

[stealthbomber]

The latest version of NiBitor v2.0 allows editing the 6800NU/GT/U bios memory timings:

http://www.mvktech.net/index.php?option=com_remository&Itemid=26&func=fileinfo&parent=folder&filecatid=916

Can anyone decipher the memory timings?

[Mavke]

The latest version is now NiBiTor v2.0a...
NiBiTor v2.0a (http://www.mvktech.net/index.php?option=com_remository&func=fileinfo&filecatid=957)

[AdvModDev]

eVGA 6800GT w/ BIOS v05.40.02.15.01 dated 2/18/05.

Edited the stock BIOS using NiBitor v2.1 to increase vcore to 1.4V (from 1.3V) and GPU/mem speeds to 400/1100. Modded BIOS flashes fine but fails D3 ROE and 3D05 rather quickly even w/ stock speeds. This card will do 418/1200 w/ stock BIOS. What happens when it crashes is the monitor loses it's signal and I have to force shutdown the PSU. Resetting the sys won't do, I have to kill all power completely. So WTF? I've tried just increasing speed and leaving the voltage at stock, same crash/symptoms. I've tried flashing an eVGA Ultra BIOS, same. Is the problem just this card? eVGA? 6800GTs in general?

[Mavke]

Well I think it might be just your card that can't handle well the 1.4v... Although just to make sure on the BIOS, are you able to provide the BIOS?

[AdvModDev]

Yeah, first thing I did was to make a backup. NiBitor actually let me choose 1.6V when I extended the voltage table (1.4V was available w/out extending and 1.5V did not exist). But using 1.6V crashed much more quickly than 1.4V. Anyways, much appreciation and the highest respect to you, xtremetheme, and unwinder for even making this possible.

[CD 1986]

Here are a couple of voltage modified bioses in case you want to try them. The first is your stock GT bios modded to 1.4v with clocks of 350/1000. The second is an eVGA 6800 Ultra bios, which is at 1.4v also and has clocks of 400/1100 (still within your card's range). You can always change the clocks using Nibitor 2.1 later to suit your needs. :)

[Anti-Hero]

anyone out there have a modded NX6800-td256e bios?

seems no one is looking it to this paticular card

[jimmor]

anyone out there have a modded NX6800-td256e bios?

seems no one is looking it to this paticular card

Linked below in M68N357p.zip file, is a moded version of the MSI6800NU PCI-E rev 05.41.02.17.13 bios. However, I produced this particular bios for someone in nvnews forum who only wanted to enable 2D/3D modes and unlock the gpu volts table.

And although it is currently set at 300/350/700 with 1.1v in 2D and 1.3v in 3D, you can obviously use NiBiTor v2.1 to set whatever you want !

EDIT:

And just in case you want to try another 6800nu PCI-E bios, I have also linked below in 68N3585p.zip file, a similarly moded Nvidia rev 05.41.02.17.25. This bios has stocks at 300/350/850. But as I said before, you can set for whatever you want.

[Anti-Hero]

:slobber:

a working bios..

seems almost to good to be true, i havent flashed yet has this been proven to work?

will this work with all 6800 NU PCIE cards?

[jimmor]

:slobber:

a working bios..

seems almost to good to be true, i havent flashed yet has this been proven to work?

will this work with all 6800 NU PCIE cards?

Although nothing in life is guaranteed, the linked bioses have been successfully used with other peoples 6800nu PCI-E cards.

And if you did a little searching around, you would have found where I originally posted these particular bioses through Guru3d and nVnews forums.

;)

[Anti-Hero]

i noticed the throttle is out will setting 2d and 3d to 1.4 eliminate any issues with that

[jimmor]

i noticed the throttle is out will setting 2d and 3d to 1.4 eliminate any issues with that


What "throttle" is out ???

And no idea why you would want to set 2D and 3D at same 1.4v levels ?

What problems do you have ?

Or more to the point, if you can't use the bioses as intended, or at least until you have problems, then you would be just as well going back to using your original bios !!

[Anti-Hero]

i dont have problems i want to raise my core voltage for better overclock.

I can now change the 2d and 3d voltages but the throttle is grey'd out. So if i cant push that up then it will lower the voltage to much resulting in a crash

[jimmor]

i dont have problems i want to raise my core voltage for better overclock.

I can now change the 2d and 3d voltages but the throttle is grey'd out. So if i cant push that up then it will lower the voltage to much resulting in a crash

Where did you pick up this rubbish about throttle crashing your 6800 card. Have you seen it happen, and what tool did you use to measure what was actually happening ???

Nibitor like any decent editing tool grey's out the items that don't apply !

Why don't you just try the bios before inventing problems you don't yet have ?

Having the gpu at 1.4v is well within its spec, so no reason for you to have many issues. However, depending on how poor the heatsinking is on your card, gpu and memory chip temperatures are the main things to keep a wary eye on. Extreme temps have never helped with ensuring a long lifespan. Fitting a Arctic NV5 cooler to my Leadtek 6800le has not only made it run cooler, but also much quieter.

;)

[AdvModDev]

Here are a couple of voltage modified bioses in case you want to try them.

Thanks. I'll try them out when I get around to it...will post back if they work or not.

[LilGator]

What would be the best way to go about making a new BiOS for a Leadtek 6800NU ?

I imagine with the beefy copper cooler it has, 1.4v wouldn't be a problem. Also, enabling 16-pipes and extra vertex should be possible as well, correct ? Anyone have a Leadtek 6800NU ?

[PikeyUK]

I have a Leadtek A400 TDH, unlocking the pipelines didn't work as got lines across screen with artifacts in 2d and 3d. This isnt to say it wont work for you as its pot luck from what i have found out about the core.

I upped voltage to 1.5v throttle didn't make any difference but still runs happy at 50d with stock cooler (i do have good case cooling though).
Only managed to get 380/820 with stock but with 1.5v it went to 429/880 but was slightly unstable, this put 3dmark 05 up 700 marks.
Runs stable at 410/850 and marks 400 more than stock so not to bad.

PS i only flashed and didn't clear the bios as had no pci gfx card if went tits up and didn't dare risk it :D

Cheers for info on this forum, most helpful in clocking this card, top thread.



Ninja edit: Sorry guys 3dmark 05 went from 3600ish stock (cpu oc but standard card), 3785 @385/820 stock voltage and 4455 @410/850
Hope this helps