Any modders game for 6800U bios?

[LardArse]

Originally posted by xtremetheme
That shouldnt be a problem

This BIOS should give 1.5V in every case, and speed 390/540.
http://home.graffiti.net/abiosfile/6800UCVTEST.ROM

This BIOS should give 1.5V in every case and speed 600/632. (omg poor card )
http://home.graffiti.net/abiosfile/6800USHAMINO.ROM

Heheheheh let her rip I say
Thx a bunch!

[LardArse]

Bad news, the bios does not load 1.5v at boot up. I also can't load into windows with this bios until GPU warms and unthrottles. How about the other 400s you see as well? Can you change all these to 410/1120 to try instead?

[xtremetheme]

Originally posted by LardArse
Bad news, the bios does not load 1.5v at boot up. I also can't load into windows with this bios until GPU warms and unthrottles. How about the other 400s you see as well? Can you change all these to 410/1120 to try instead?

Hmm bad.
This Bios is default @390 and the others at 410.
I set the bootup to 1.4V, maybe that works.

http://home.graffiti.net/abiosfile/6800UCVTEST2.ROM

[LardArse]

Hi xtremetheme, the card has no problems booting up at 600/1265 with 1.38v.
However, can you write me a bios that has the default voltages :ie- 1.1v/1.4v but with 590/1240?
And another bios with the 1.5v and 590/1240?

[xtremetheme]

Originally posted by LardArse

However, can you write me a bios that has the default voltages :ie- 1.1v/1.4v but with 590/1240?
And another bios with the 1.5v and 590/1240?

http://home.graffiti.net/abiosfile/6800US1.ROM

Originally posted by LardArse

And another bios with the 1.5v and 590/1240?

http://home.graffiti.net/abiosfile/6800US2.ROM

Here you go

[Stylist]

Hi,

I have a NV6800GT. Do you see any chance to flash to 6800Ultra?

At least could you modify my current BIOS to provide +0.1V (GPU) in 3D?

And which tool (nvflash.exe -version?) to use and which parameters (nvflash -f name.rom ?) to force the flash?

I attached a backup of my BIOS (just rename to .rom).

Thanks in advance!

Regards

Stylist

[EmineM]

im also looking for a modded 6800 bios non gt and non Ultra

[xtremetheme]

I dont know if you can flash 6800GT -> 6800U.
But it seems the GTs also have the +0.1V setting.
http://home.graffiti.net/abiosfile/nv6800gtV.rom


I use nvflash 4.41 but i dont have a 6800 so i dont know if that works.
If you flash your own BIOS you shouldnt have to force anything.

Remember to have a backup plan e.g. PCI card.

[Stylist]

Originally posted by xtremetheme
I dont know if you can flash 6800GT -> 6800U.
But it seems the GTs also have the +0.1V setting.
http://home.graffiti.net/abiosfile/nv6800gtV.rom


I use nvflash 4.41 but i dont have a 6800 so i dont know if that works.
If you flash your own BIOS you shouldnt have to force anything.

Remember to have a backup plan e.g. PCI card.

Thanks!

But it seems that it didn't work.
I got display corruption after start up (Windows) and no improvement in overclocking at all.

EDIT:

Flashed it again and no display corruption any more, thanks.
But there is no recognisable improvement at all.

Could you check the settings once again?

What did you exactly modify? VCore for the GPU +0.1V?

Thanks in advance,

Stylist

[JacobHansen]

Is there a bios that has the default voltage of 1.5/6v ?

Our card is acting very weird, with a mach II mounted on it.

Displaying 10 deg. in the driver with and without overclock..

The Card is a Leadtek A400 GeForce 6800 Ultra..

The ram on the card does around 1230 with out any voltmods, and the gpu runs at 460~ ..

[xtremetheme]

Originally posted by Stylist
Thanks!

But it seems that it didn't work.
I got display corruption after start up (Windows) and no improvement in overclocking at all.

EDIT:

Flashed it again and no display corruption any more, thanks.
But there is no recognisable improvement at all.

Could you check the settings once again?

What did you exactly modify? VCore for the GPU +0.1V?

Thanks in advance,

Stylist

Yeah i set the option for +0.1V in 3D, but if it doesnt work maybe the GT has another PCB or such that is not designed for providing the 1.5V setting?
Sorry dont know

[xtremetheme]

Pplz how about your mod bios yourself, its not very hard.
Look here:


You do a search for 10020300 and after that you see your voltage settings.
The speed is in the area a bit above.
Remember you must reverse the hex values.
After you edited, use nvchk.exe to write a new checksum and you can flash.

[JacobHansen]

hey xtremetheme, thank you very much for the post about the bios.
Could you please help us with the values for for instance 540Mhz core and 1200Mhz mem?

Btw. what program are you using for editing the bios?

[Stylist]

Thanks!

Are you sure that "03" stands for 1.5V? How did you get those values? - Ultra BIOS?

The results let me believe that it could be lowered instead of beeing increased .

BTW: He uses probably ultraedit or an similar HEX editor.

Thanks in advance!

BTW: Your location is Germany, do you speak german?

[Stylist]

Originally posted by xtremetheme
Pplz how about your mod bios yourself, its not very hard.
Look here:


You do a search for 10020300 and after that you see your voltage settings.
The speed is in the area a bit above.
Remember you must reverse the hex values.
After you edited, use nvchk.exe to write a new checksum and you can flash.

Thanks!

But how to find and identify the values for GPU/RAM settings?

And how to change the 2D and especially 2D/3D settings and where to find?

I need the following:

Voltages:

2D=1.1V
2D/3D=1.4V
3D=1.5V

-> this means: 0082 018C 0300 right?

Frequencies:

2D=350/500
2D/3D=410/550
3D=425/560

-> where to find and how to identify ?

Thanks in advance!

Stylist

[xtremetheme]

I use a simple Hexeditor, HexWorkshop in my case.
036E0082028C01
You see the 03 at the very beginning says there are 00-03 possible options.
Was the same with the 5900 BIOS which had up to 07 setting.
Shamino measured the 03 setting with 1.5V...

[Stylist]

What would be +0.2V = 1.6V?

tia

Stylist

[xtremetheme]

Originally posted by Stylist
What would be +0.2V = 1.6V?

tia

Stylist

Not available. I suspect the 1.5V setting is for 6800UE card.

[Stylist]

Originally posted by xtremetheme
Not available. I suspect the 1.5V setting is for 6800UE card.

No, I guess it works.

automatic scan for highest value with coolbit:

Before applying moded BIOS: 399/1080
After applying moded BIOS: 411/1200

So where did you get the values, what was for 1.6V?

[rycky]

Originally posted by xtremetheme

... After you edited, use nvchk.exe to write a new checksum and you can flash.

Great job xtremetheme, I've just one question in order to make my bios, where can I find nvchk.exe?

thks


Edit : Finaly I found it

[LardArse]

Great stuff xtremetheme, this will help a lot of 6800 users, especially the GTs :thumbsup:

[bmg]

Could someone post links to the necessary tools needed to read/flash and also nvchk.exe? xtremetheme, would it be possible to email them to me at bmg2@cableone.net?

Got them. Thanks.

[drcrawn]

Been following what you guys have cooked up, simply amazing! Way to go. I noticed that the original 6800Ultra being used is a WInfast 400. I have a 6800ultra with the reference cooler. I can hit 466/1.23 with air, so I know this card has some nice potential. The Winfast HSF is all copper right? If you would be willing to part with it...maybe we could work something out.
Anyway, I hope that wasn't inappropriate.
Do you guys have a normal Ultra Extreme BIOS that I could flash my Ultra with? Thanks.

[rycky]

Originally posted by bmg
Could someone post links to the necessary tools needed to read/flash and also nvchk.exe? xtremetheme, would it be possible to email them to me at bmg2@cableone.net?

Here all you need.

http://rycky11.free.fr/Forum_Hardware/Bios6800u.zip

[rycky]

Originally posted by xtremetheme
Pplz how about your mod bios yourself, its not very hard.
Look here:


You do a search for 10020300 and after that you see your voltage settings.
The speed is in the area a bit above.
Remember you must reverse the hex values.
After you edited, use nvchk.exe to write a new checksum and you can flash.

xtremetheme I have one question again, I changed 9001 by D601 in order to set my GPU at 470, that's works but not only in 3D, in 2D too! An idea?