modding ti4600 into quadro 900 xgl

Hello everybody,

I would like to try to mod a geforce ti4600 gainward 750 into a quadro.

I've read a lot of things about this (guru3D, rivatuner) but I've never
succeed in this.

With Rivatuner, some parts of the driver see a Quadro, some other parts see
a Geforce but speed in viewperf, other benchs or Pro/engineer software are
the same ones.

I've also read it's possible to flash the 4600 bios with a quadro900 (980)
bios but is it true and where I can download the right bios for my Gainward
card ?

Well, I'm very curious to see if the mod is possible (physical mod, bios mod
or software mod) and any advice will be welcome...

thanks,

GB