Flashing 8800GT ROM image too large

[sevichenko]

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
[doublepost=1478823766][/doublepost]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 need. The .rom file is about 128kb

I also have a GTX570 as a second card. If you think in a better card as a first card, i mean to have boot screen, tell me which one are you thinking at.

 

[pastrychef]

Oh damn. You got one of the 8800 GTs with the smaller EEPROM... I forgot there were some models of 8800 GT that shipped with them...

 

[hartleymartin]

Whilst we are on the topic of 8800GT cards, is it possible to re-flash one with the 32-bit compatible EFI? I have one in my Mac Pro 1,1 but it won't give me a boot screen. It does give me a boot screen on my Mac Pro 3,1 though which has the 64-bit boot efi.

 

[pastrychef]

Yes, just flash it with the 32 bit EFI firmware to get boot screen on the 1,1.

 

[sevichenko]

Oh ****...

 

[sevichenko]

can i get a bigger eeprom from a toasted xfx 8800gt that someone gift me and solder it into the point of view 8800 card?
i need to know something else? what i need? only a heat gun?

 

[pastrychef]

I've never tried anything like that... It's worth a shot...

 

[Fl0r!an]

nvflash has a list of supported SPI flash chips. Just get one with the appropriate size and solder it onto your card. Use a 2nd GPU to flash a ROM onto it (or do it blindly).

 

[sevichenko]

nvflash has a list of supported SPI flash chips. Just get one with the appropriate size and solder it onto your card. Use a 2nd GPU to flash a ROM onto it (or do it blindly).

Thanks florian!

 

[CapnDavey]

OOPs already posted a warning in your other thread I tried this with a EVGA card it had the smaller rom crap GTX680 much better option and most cards flash like a piece of cake( but check the thread on compatible cards before you buy)