Any modders game for 6800U bios?

[LardArse]

Here it is:

http://www.vr-zone.com.sg/Shamino/6800/BACKUP.ROM

Any modders out there willing to do me a favor by looking through it to see if thermal throttling/temperature settings can be adjusted /disabled? Right now it will throttle when GPU is too cold. Also, if voltage can be increased that would be good.
Thx.

[xtremetheme]

What VGPU and Clockspeed does the card have in 2D and in 3D? (Default ones )
And to what VGPU, Speed will the card throttle when too cold?

Can it be its 1.1V in 2D and 1.3V /1.4V in 3D ?

[LardArse]

Its 1.13v without the drivers loaded and 1.43v with drivers loaded, 2d and 3d voltage is the same at 1.43v, and speed is also same at 400/1100. 1.1v and 1.4v should be the correct values.
It will throttle to default clock speed if too cold. If too cold, when the detect optimal frequencies is clicked in coolbits, the car dwill be throttled to 392/ 1.08Ghz.

[xtremetheme]

So you dont have 2D/3D profiles in the detonator like with the old fxes?
Thats sad i liked that feature.

But the 6800 bios is similar to the fx5900, it has different voltage settings for 2D, lowpower3D and 3D included.
Maybe with new drivers we can see that feature again.
And with drivers installed you get more V then before, so it seems possible the driver can tell the card which setting to use.

There is also another voltage setting which isnt activated.
Like with fx5900 you could activate the setting for fx5950 and get VGPU like a fx5950.

So maybe this setting was used in 6800UExtraHigh review samples and gives you e.g. 1.5V instead of 1.4V
But it could also be an intermediate or extra low setting, so your card gets lesser V. It could also do nothing at all.

Im not sure about the clockrates, it seems i see 400/550, 400/600 and 400/400 profiles in there?
Could explain why the core isnt changing in 2D, have you checked if your ram speed is changing?

To the throttling, the only way i know is to adjust the core in the bios manually so it will always adjust to this speed, which makes ocing not so comfortable.

[LardArse]

I'm game for it, setting the o/c settings right at boot up , as long as I can get it to run 1.4v all the time. Can you do that for me?

[xtremetheme]

Hehe ok, but first we need to find out what setting means what and if its even used.

In the BACKUPX.rom i changed the three 400er profiles to 390, 380 and 370.
You start a game and see in rivatuner what happens with the core please.

In the BACKUPX2.rom i set the unknow VGPU setting for 3D Mode. Start a game and measure VGPU like you did before.
Its like not possible to kill a GPU with VGPU wrong in BIOS, but if VGPU to low you can get a crash.

I cant guarantee this roms will work, because i dont have a 6800 to test myself.
I dont know if the tools to read out BIOS and compute checksum are ready to handle the 6800. It could be the card doesnt like the BIOS and plays dead, in that case flash the old BIOS back.
So i highly advice you have a PCI card at hand to do this comfortably.

Which tool did you use to read it out?
If not nvlash then try it again with nvflash, some reader dont give the BIOS the correct file size. I had my card play dead because i flashed a wrong sized BIOS.

Maybe you can try to use VGABIOS.exe, havnt tried myself but its supposed to load a BIOS temporaly until next restart. (Only works in DOS i guess)

BTW: What brand is your card?

Good luck hope it all works

Edt: Removed backupx.rom because it gave failures.
Renamed backupx2.rom to 6800UV.ROM.
(6800U VMod Bios, gives +0.1V in 3D Mode)
http://home.graffiti.net/abiosfile/6800UV.ROM

[LardArse]

Wow, thx man, I'll give these a whirl in a bit.

[LardArse]

Ain't you the genius! Biosbackupx2 gave the same voltage when drivers not loaded but 0.1v more when drivers are loaded. Thx! Havent tried the other bios yet.
That should be the voltage setting for ultra extreme i tihnk.

[xtremetheme]

Originally posted by LardArse
Ain't you the genius! Biosbackupx2 gave the same voltage when drivers not loaded but 0.1v more when drivers are loaded. Thx! Havent tried the other bios yet.
That should be the voltage setting for ultra extreme i tihnk.

Haha thats great!
I got a 6800 BIOS here and it has the same 3D Voltage Setting as your 6800U, and also seems to have the one for the 6800UE stored.
So that can be good news for the upcoming 6800 users to get 6800U speeds.

[Tom Holck]

very interesting reading xtremetheme

can you make a rom-file with 600/650 ?

My Gainward goes 400/600 default with 1.6 3ddr-ram.

If I load your backupx2.rom I'll get 0.1Volt but what about the core and ram speed?

[xtremetheme]

Originally posted by Tom Holck
very interesting reading xtremetheme

can you make a rom-file with 600/650 ?

My Gainward goes 400/600 default with 1.6 3ddr-ram.

If I load your backupx2.rom I'll get 0.1Volt but what about the core and ram speed?

You mean 600 core and 650 ram?
Hehe then be sure you have good cooling.
I could but i dont know which speeds to use until someone tested BACKUPX.rom.

Do you still have your old bios?
I would more likley change the values there, because cross flashing bioses from other cards on FX5900s resulted in not working tv-outs.

[Tom Holck]

Originally posted by xtremetheme
You mean 600 core and 650 ram?
Hehe then be sure you have good cooling.
I could but i dont know which speeds to use until someone tested BACKUPX.rom.

Do you still have your old bios?
I would more likley change the values there, because cross flashing bioses from other cards on FX5900s resulted in not working tv-outs.

Yes, 600core 650 ram for a start.
I have one of the worlds best dual cascades.
not working tv-out is OK!

If not LardArse or someone else test the BACKUPX.rom I will do it, but it will be in next week

It will be great: 3DMark03 175xx "bios supplied by xtremetheme!"

[LardArse]

xtremetheme, backupx made my PC behave weird, Riva tuner cannot detect the clock speeds and if I click detect now, the whole screen will go bonkers. Trying to access the 6800ultra tab in the display properties results in a crash. Perhaps we might need to change one at a time?
Are there any temperature settings in there? Anything lower than 25C core is detected as red-hot/danger and so very susceptible to throttling.

[xtremetheme]

Originally posted by LardArse
xtremetheme, backupx made my PC behave weird, Riva tuner cannot detect the clock speeds and if I click detect now, the whole screen will go bonkers. Trying to access the 6800ultra tab in the display properties results in a crash. Perhaps we might need to change one at a time?
Are there any temperature settings in there? Anything lower than 25C core is detected as red-hot/danger and so very susceptible to throttling.

Hmm i ll look into it. What is the throttling temperature stated in your temperature tab?

[LardArse]

There isn't really a throttling temp to be seen there, just what I said, 25C and upwards, it shows it to be in the very safe zone, but drop 1 C to 24c and it immediately jumps to red hot level/danger zone.
There's the maximum threshold of 125C in the thermal settings tab which cannot be changed.

[xtremetheme]

Thx, i think i found the failure with the clock speeds.
http://home.graffiti.net/abiosfile/BACKUPX3.ROM

Try this if you get 390/540.

[xtremetheme]

Good news from home, i was able to locate and change the core slowdown value on my FX5900.

I can also change this on the 6800U it seems.
Its just a theory, maybe the card has a operating range of 100° and if it goes out of bounds on either side it will think "WTF??" and slowdown.

I changed the max threshold on this BIOS to 100°, if the theory is right you will able to go down to 0° before card slows.

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

If this all works i can set the slowdown to 0°, meaning the card would only work from -100° to 0° which is truly extreme

[Tom Holck]

Originally posted by xtremetheme
[B

If this all works i can set the slowdown to 0°, meaning the card would only work from -100° to 0° which is truly extreme [/B]

Well, then we must raise the volt a little, so the temp don't drop below 100 C

Make that bios, I'll try it in a few days

The temp was -120 C on the ATI x800 default volt.

[Symphysodon]

Hello there,

I will buy a 6800U soon (there isn't any card available in Germany yet :-/) and will cool it with a 230W peltier, so i hope to reach sub zero temperatures around -25°C Idle...

LardArse, i knew the phenomenon with the abnormal behavior from my fx 5950 yet - it also shows a totally red diagram if the GPU is too cold, but it did never set the clocks back to default - I was able to overclock the card via PowerStrip v3.46 even under 25°C.

Please try if you are able to overclock after cooling it under 25°C with PowerStrip, this would be very interesing for me... and if it works, ur problem with the throtteling behavoir wouldn't exist anymore :smileysex

By the way, is the true temperature shown if you cool it down lower than 25°C?

xtremetheme: If no way helps to make the card working correctly with lower temps than 25°C, it would be nice if you could build me a BIOS with a range from -40°C to 60°C and +0,1 V Vcore please - actually i'm not able to use two BIOSs the same time

Thanks for help..., regards from Germany,
Symph

[LardArse]

Coolness! I'll try the core slowdown bios in a bit! Thx for all these xtremetheme!

[LardArse]

Xtremetheme, it does set the core slowdown to 100C but it doesn't change the cold throttling/ 24C and below recognized as red-hot.. Should be something coded in the drivers.
I'll try the 390 bios then, if need be then we'll have to throttle the card to 600 then

[LardArse]

Yes, now the card throttles to 390 with that bios. But memory throttles to 1080 or 540 mhz. There are artifacts on screen after the throttle though. Any memory throttle values there?
I take it that this is the throttle speed and not the boot up speed?

[xtremetheme]

Originally posted by LardArse

Xtremetheme, it does set the core slowdown to 100C but it doesn't change the cold throttling/ 24C and below recognized as red-hot.. Should be something coded in the drivers.

Hmm yeah could be it can be overrided by the drivers, i vaguely remember some one posting his slow down temperature on FX5900 changed when he installed a new driver version.
But if the max slowdown is stored in BIOS the min is maybe also there.

This throttling on too cold, did this also happen with the FX5800/5900?

Originally posted by LardArse
Yes, now the card throttles to 390 with that bios. But memory throttles to 1080 or 540 mhz. There are artifacts on screen after the throttle though. Any memory throttle values there?

Yes it should go to 390/540, thats what i wrote, to also test if the memory value is right. Damn i have no idea why there should be artifacts.

Originally posted by LardArse
I take it that this is the throttle speed and not the boot up speed?

This speed should be the new default speed for the card now, and the 6800
falls back to its default speed when it throttles from my understanding of your reports.

Just disable any ocing and see if the new default speed is 390/540 from start on.

Or is there any situation when the card speed goes to 400/550 again?

[LardArse]

Heck it, I can live with the artifacts for now!
Can you please write this bios? :-

- The Ultra EE (special voltage) setting if possible right at boot up? Anyway to replace the 1.1v boot up value with the 1.4v or 1.5v of the ultar EE?
- A default/throttle speed of 600/1265

To be safe, perhaps you can write the bios for the 1.5v bootup with 390/540 first if possible?
Thx man, we're getting there

[xtremetheme]

Originally posted by LardArse
Heck it, I can live with the artifacts for now!
Can you please write this bios? :-

- The Ultra EE (special voltage) setting if possible right at boot up? Anyway to replace the 1.1v boot up value with the 1.4v or 1.5v of the ultar EE?
- A default/throttle speed of 600/1265

To be safe, perhaps you can write the bios for the 1.5v bootup with 390/540 first if possible?
Thx man, we're getting there

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