BFG 6800GT biod mod

[bobmanfoo]

BFG 6800GT bios mod

i modded my bfg gt bios with OmniExtremeEdit v1.2, changed the gpu voltage to 1.4V, set 3d default clocks at 410/1.1. Max OC increased from 415/1.15 to 425/1.18, temps rose 3C idle and load

Do at your own risk, do not flash if you are not familiar or confortable with it

 

[Nandro]

You have a copy of it? I have the same card in my rig and would like to give it a try.

 

[bobmanfoo]

sure thing my friend ----- nvflash -p -u -f bfggt14oc.rom ------ im currently using Expertool to have the fan at 100% speed a 2d and 3d to make up for the extra heat

 

[Nandro]

My water block should be here tomorrow. I'll wait till then. It should have been here on Friday but that damn hurricaine held everything up. Still not sure if I have to work tomorrow, the place looks like a demilitarized war zone down town.

 

[bobmanfoo]

BFG 6800GT bios - 1.4V, 425/1.12 clock speeds - close to BFG Ultra OC clocks

 

[mattspalace]

What's stock voltage for a 6800 GT?

 

[bobmanfoo]

1.3v

 

[mattspalace]

Ah, what I thought, wasn't sure though. Is she stable?

 

[PCGUY112887]

Try 1.5v!!!
Can you change the memory volts?

 

[Nandro]

bobmanfoo, what kind of cooling are you running?

 

[bobmanfoo]

im using the stock cooling, im not going to try 1.5V on with the stock hsf, and at 1.4V(Ultra stock voltaage) it is solid

 

[Nandro]

Cool deal, with the water block I should be good to go. I would run it on the stock also, but no sense seeing that the block should be here tomorrow anyhow, if fedex is running. Half of florida is in a shambles.

 

[mattspalace]

I think I'll test it out also.. Can you give a brief step-by-step as I've never used NvFlash before. Thanks.

Blah, nevermind.. There's a sticky for it!

 

[Nandro]

Can I do this right from a dos prompt or do I need to use a boot disk?

 

[Nandro]

I just tried putting those three files on a boot disk and ran the nvflash -p -u -f bfggt14oc.rom and it said cannot open file.

 

[Big Lar]

Try nvflash -p -u -2 with the name of the rom file right after with 1 space,ie;
nvflash -p -u -2 larrys.rom (not larrys rom of course).
You will need cwsdpmi.exe in with the .rom file and the nvflash.exe file on the boot disc too, if you are flashing from dos.
I flashed with a Leadtek bios that I got off hardforum today, which changes the voltage only in 2d/3d to 1.4v and not the clock speed. Works very well.
Flash at your own risk of course!

 

[bobmanfoo]

you need a boot disk, cwsdpmi.exe needs to be there as well, if not you need to add a file for dos compatiblity

 

[heyheyhey]

Only Ultra BIOS's can do 1.5v, which is what I'm currently running.

 

[Nandro]

I also get an error that it cant run cwsdpmi.exe

I will write it down when I run it this next time.

 

[McDongle]

That's nice....the same information I put you on to three days ago bobmanfoo ...glad it worked.