BIOS flashing 6800 GT into Ultra

[GeneralGrievous]

possible?

 

[Marsumane]

Im not really sure. I know that there were some issues with the betaboards of ultra cards when using only one molex connector. The bios may not tell it to draw enough power from the one molex to get it up to the desired power requirement. I really dont know if nv has corrected this or not. I believe they said they would with the ultra so it may be possible.

Then again, you can oc the GT to ultra speeds (i think) and that leads me to believe that it could be a possibility.

I really just dont know how it would handle having one less molex.

 

[manko]

What would be the difference between a 6800 GT overclocked to Ultra speeds and one flashed with an Ultra BIOS?

 

[Corporate Thug]

Originally posted by: manko
What would be the difference between a 6800 GT overclocked to Ultra speeds and one flashed with an Ultra BIOS?

nothing

in fact with the case of the 5900 to 5950 flash, the flash resulted in worse performance rather than overclocking, as the flash resulted in looser timings

 

[yhelothar]

wrong.. the flash increases voltage, and loosens timings to allowing higher clockspeeds.
That's why people did the flash, because it wasn't able to run reliably with just an overclock.

 

[tadh]

Both the GT and the Ultra use/have (2) Molex connectors so I don't nelieve that needs to be a concern.

The clock differences are the GT @ 350 x 1000 and the Ultra @ 400 x 1100 depending upon manufacturer.

Differences in voltage and timings are not known by myself and honestly; who has one of each of these available to them for comparison/tesing?

Some peeps are starting to think the GT's really are the Ultra's PCB's and Memory but with slightly lower yielding GPU cores so I imagine the possibility is there if you get a "Good" one and have quality cooling.

 

[MDE]

Originally posted by: tadh
Both the GT and the Ultra use/have (2) Molex connectors so I don't nelieve that needs to be a concern.

The clock differences are the GT @ 350 x 1000 and the Ultra @ 400 x 1100 depending upon manufacturer.

Differences in voltage and timings are not known by myself and honestly; who has one of each of these available to them for comparison/tesing?

Some peeps are starting to think the GT's really are the Ultra's PCB's and Memory but with slightly lower yielding GPU cores so I imagine the possibility is there if you get a "Good" one and have quality cooling.

The GTs have single slot heatsinks and only one Molex connector.

 

[Shamrock]

Originally posted by: shady06

Originally posted by: manko
What would be the difference between a 6800 GT overclocked to Ultra speeds and one flashed with an Ultra BIOS?

nothing

in fact with the case of the 5900 to 5950 flash, the flash resulted in worse performance rather than overclocking, as the flash resulted in looser timings

dont lie to people. Did you even do a flash from the 5900U to a 5950U? I did, I know every game I play, except one, I gained quite a bit. Tribes 1 is the only game that I didnt gain any, but that's because it's FPS locked at 175fps. (a bug? Anyway it would gain, nor lose any at all)

In F12002 I gained 23fps!
In UT2003 I gained 18! UT04 I gained 13!
In CoD I gained 8
In C&C Generals:ZH I gained 16

So, you tell me? did I get worse performance??? Oh, and also My temps went down by 10 under idle, and 13 under 3d load

Yes, it did result in looseer timings, but it overclocked it by a bunch, and upped the voltage .1v. But I went from 420/870 (Gainward Golden Sample) to a whopping 475/950, and I can OC it to 1 Ghz memory!

 

[Dman877]

Someone with an Ultra needs to clock it down to GT levels and bench it. Then we'll know if there's anything besides a clockspeed difference between the 2.

 

[Corporate Thug]

Originally posted by: Shamrock

Originally posted by: shady06

Originally posted by: manko
What would be the difference between a 6800 GT overclocked to Ultra speeds and one flashed with an Ultra BIOS?

nothing

in fact with the case of the 5900 to 5950 flash, the flash resulted in worse performance rather than overclocking, as the flash resulted in looser timings

dont lie to people. Did you even do a flash from the 5900U to a 5950U? I did, I know every game I play, except one, I gained quite a bit. Tribes 1 is the only game that I didnt gain any, but that's because it's FPS locked at 175fps. (a bug? Anyway it would gain, nor lose any at all)

In F12002 I gained 23fps!
In UT2003 I gained 18! UT04 I gained 13!
In CoD I gained 8
In C&C Generals:ZH I gained 16

So, you tell me? did I get worse performance??? Oh, and also My temps went down by 10 under idle, and 13 under 3d load

Yes, it did result in looseer timings, but it overclocked it by a bunch, and upped the voltage .1v. But I went from 420/870 (Gainward Golden Sample) to a whopping 475/950, and I can OC it to 1 Ghz memory!

ummm, yes i did. flashing LOOSENED the timings of the memory,and gave me worse performance. i overclocked to just under 5950 speeds and got much better performance


and i'm using a 5900, not a 5900U

btw, what am i lying about? the fact that 5900 oced to 5950 gives better performance than 5900 flashed to 5950?

 

[onza]

i'm afraid shady is correct.

 

[Shamrock]

that's your problem then, you have a 5900NON Ultra, the BIOS flashes ended up good if you had Ultras....my mistake for not looking to see if you had an Ultra, as I did, and my flash is still going strong, with all those results I posted. I appologize.

 

[Ackmed]

Tribes is not locked at 175fps. Its not locked at all.

 

[Drastion]

Just wanted to bring this topic back up and see if anyone has actually flashed the bios of a GT to the Ultra? And if so what were the benefits if any?

 

[THUGSROOK]

youd be better off modifying your own bios to whatever specs you want.
you can up voltage, and change or even disable thermal throttle.

shady06 is correct about the 5950 flash.
modifying my own bios produced wayyyyyyy better results


Programs to use:
OmniExtremeEdit (1.5 or better) for bios file modifying.
NVflash or WFflash to dump and flash bios files.

HTH

 

[JBT]

It is stupid to Flash a GT to an Ultra because the extra molex and it is difficult to flash it for some people because of ID mismatches. The best idea it to get a copy of your cards BIOS and modify it to get your extra .1 voltage that way.

 

[BFG10K]

Both the GT and the Ultra use/have (2) Molex connectors

Only the Ultra has two molexes.