problem with bios modification

[newmax07]

i have a little problem with bios modification

i tried to flash my nvidia 7950 gto to quadro 5500 but i failed

i download the modified one from aqua mac site and it works

the same for 8800 gtx and 7950 gx2 .......

the problem that i flash the modified bios with nvflash

every thing i modified with NiBiTor core , shader , memory ,

sub vendor id every thing works

only the

the device id the windows or mac see the original one and did not

see the modified one

so 7950 still 7950 , 8800 gtx still 8800 gtx

i wonder why the modified device id appear in the saved bios file

the one i used with nvflash with NiBiTor but the operating system

still seeing the original one after flashing the other modifications

works how i can solve that how can i change the device id and

operating system read the modified one

thanks a lot

[aquamac]

Hi newmax07,

Yes, you cannot just change the device id in a rom as there are other parts of the rom (softstraps) that will override what you have written, if they are not modified. These softstraps also need working out then the whole rom needs fixing at the end. There was a tool to do this on 7 series cards but it did not work on 8 & 9 series, so I had a lot of suck it and see where I modded roms for Quadros such as 8800 GTX to Quadro FX 5600 & 8800 GT to Quadro FX 3700.

If you look at say one of my downloads for Quadro FX 5600 conversion and a 8800 GTX you will see the areas that needed changing.

[newmax07]

hi aqua mac


the card i want to modify bios is 7950 gx2

i want to change it to quadro 4500 x2

i want to change the bios device id from 0294 to 029F

for both bios : -

XFX.7950GX2.p502.PCIe.512MB.Rev.01.rom

XFX.7950GX2.p602.PCIe.512MB.Rev.01.rom

but what the tool i must use it beside NiBiTor

and nvflash

i tried Hex Workshop v5.1 but i could not reach the equal values

of the device id i want to change but i failed after several tries

and here is my original bios

rapidshare.com/files/177019716/XFX.7950GX2.PCIe.1024MB.Rev.01.zip.html

thanks a lot aquamac

[aquamac]

Hi Newmax07,

I have fixed your 7950 bioses to Quadro FX4500 X2 and uploaded to here:

rapidshare.com/files/177171780/Fixed_7950_gx2_to_Quadr_FX_4500_X2_Roms.zip.html

A word of caution with this card!

Each bios must be flashed onto each card individually!!!! Make sure you flash the correct bios onto each card. This requires different commands to normal flashing. It's something like:

nvflash 0 -4 -5 -6 -j Q4500502.rom

then

nvflash 1 -4 -5 -6 -j Q4500602.rom

Notice the 0 & 1 define the card that is being flashed to and you must choose the right rom as well. If these are not the correct commands, check nvflash help.

I have to say I accept no responsibility for this mod if you mess up your card, these cards are probably the hardest of all to do and whilst I think the roms I changed are correct, flashing the wrong one onto the wrong card will end up with a dead card.

Also, I am not sure of what the nvidia drivers in windows will make of only 2 DVI outputs when I think the Quadro had 4!

PS, I also changed the vendor id to Nvidia.

Good luck anyway!

[newmax07]

hi aqua mac

thanks ....... a lot of thanks you did it

it works perfect as 4500 x2 thanks a lot

and windows see it as 4500 x2

and here is the screen shots ...

rapidshare.com/files/177228714/4500_x2_pic.rar.html

thank you very much ... a lot of thanks aqua mac

[aquamac]

Hi newmax07,

Really glad it worked, I may flash the 2x 7900 GTX's to Quadro that I have. What command did you use for flashing in the end, was it the one I suggested?

[newmax07]

hi aqua mac

thanks a lot

the command was

a:\nvflash -4 -5 -6 -j -i0 first.rom

a:\nvflash -4 -5 -6 -j -i1 secound.rom

in Hackintosh which version of nvinject i should use

[aquamac]

Cheers,

Download this:

rapidshare.com/files/177541794/aquamac_Quadro_FX_4500_X2_strings.zip

NVInject will not work. If you have a second PCIe slot, move your card to that then follow this walkthrough:

aquamac.proboards106.com/index.cgi?board=hack1&action=display&thread=569

You will need to get the PCIe addresses from windows vista.

[newmax07]

hi aqua mac

thanks a lot . i want to ask you about changing the amount of

active performance levels .

i found a 3 versions of xfx 7950 x2 bios

one of them both of 2D performance level

and the 3D performance level are active

i can active the 2D performance level from the Nibitor

but it will give me an extra performance and it will work stable as

now ?

that's what i was wondering about

and here the comparison

rapidshare.com/files/177853127/7950_X2_Bios_Compare.rar.html

thanks a lot



something else i was wondering about i read on your other topics

about 8800 gt become quadro fx 3700 both 512 & 1024 ram

it works on windows or gust mac ...... and there are any luck

on 9800 gt , gtx , gtx+ , gx2

9800 gx2 can become quadro 4700 x2

both are g92 and the id matching

thanks a lot aqua mac

[aquamac]

Hi newmax07,

I guess there is nothing stopping you from changing the performance levels with nibitor by copying them over from the other roms you have found online. They are probably similar otherwise.