Nice, we'll done man!!So I got it all working!
The EVGA GeForce 8800 GT Superclocked 512MB PCI-E Video Graphics Card has a 128k rom. I ran NVflash in Dos from a USB stick and typed in NVFlash check. The results said 1024 which means it's flashable to the Mac Rom.
After flashing the card my MacPro 1,1 now boots with bootloading grey apple screen
It's running 10.7 on one SSD and 10.10.1 on another. They both display boot apple graphic. I'm pretty thrilled.
If anyone cares, I ended up installing a clean copy of 10.10.1 on my other Mac Pro. Then CCC that to a SSD and replaced the two ROM files using Mr. Zarniwoop's instructions.
Still can't believe this old mac is not EOL![]()