Nice. Well, guys, after read ALL of the 31 pages of. the thread in about 01:30 hours, I learned a lot of things, beeing:
1 - The 670mx vbios in my ASUS G75VX is inside the BIOS
2 - It cannot be extracted by tradicional methods (GPU-Z reading not supportes and NVflash -b or --save "can´t find eeprom") It must be extracted with the method described in the firs post.
3 - Once you flash an original BIOS from Asus, the BIOS change in the chip.
4 - Information about windows 8 and your notebook specific stuff are in that recent modified BIOS after official upgrade, ?????%#^#%%????? ...Anyway, I'm downgraded to Windows 7 and using MBR, not GPT.
THINGS NOT CLEAR:
Once I have backuped the BIOS with FTK, how can I extract the original VBIOS from it?
Why those things are importanto to me? Cause a member from InsanelyMac and I are trying to succesfully hackintoshing this machine and we are stuck on graphics acceleration. We can reach a fully operatinal desktop in Mavericks but OSX can't see the vram and other stuff of the graphics card. I thing Klem and HTTuner can help a lot.
For me, knowing a way to correctly extract the vbios is a hell of a progress, cause now we can try to inject it in the device properties of chameleon bootloader.
Maybe a video conference between Klem, HTTuner , my friend and I can solve various questions at the time.
If we can solve this, we will get a fully operational OS X system on this machine and it will become the best "macbook pro" ever.
Greetings from Spain
Edited by NiPeGun - 11/6/13 at 6:32pm