Flashing 8800GT ROM image too large

Hi mates, i'm trying to flash the 128kb EFI on a point of view 8800GT for my mac pro 2008 (64bits)

but the nvflash told me that the ROM image too large for eeprom.

The eeprom is Atmel AT25F512

Anything i can do?

Thanks
searching on internet i find this:


Atmel AT25F512 512Kx1S 2.7-3.6V, 128B page, 32k blk, ID=(1F,0065)

i need to put the 64bits efi rom for the mac pro 2008 and i don't know if the atmel is 512, 128 or 32 and what amount i...

Flashing 8800GT ROM image too large