Flashing 8800GT ROM image too large

Discussion in 'Mac Pro' started by sevichenko, Nov 10, 2016.

  1. sevichenko, Nov 10, 2016
    Last edited: Nov 14, 2016

    sevichenko macrumors regular

    Joined:
    Oct 9, 2016
    #1
    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
    --- Post Merged, Nov 10, 2016 ---
    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.
     
  2. pastrychef macrumors 601

    pastrychef

    Joined:
    Sep 15, 2006
    Location:
    New York City, NY
    #2
    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...
     
  3. hartleymartin macrumors regular

    hartleymartin

    Joined:
    Jul 15, 2016
    Location:
    Sydney, Australia
    #3
    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.
     
  4. pastrychef macrumors 601

    pastrychef

    Joined:
    Sep 15, 2006
    Location:
    New York City, NY
    #4
    Yes, just flash it with the 32 bit EFI firmware to get boot screen on the 1,1.
     
  5. sevichenko thread starter macrumors regular

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    Oct 9, 2016
  6. sevichenko thread starter macrumors regular

    Joined:
    Oct 9, 2016
    #6
    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?
     
  7. pastrychef macrumors 601

    pastrychef

    Joined:
    Sep 15, 2006
    Location:
    New York City, NY
    #7
    I've never tried anything like that... It's worth a shot...
     
  8. Fl0r!an macrumors 6502a

    Joined:
    Aug 14, 2007
    #8
    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).
     
  9. sevichenko thread starter macrumors regular

    Joined:
    Oct 9, 2016
    #9
    Thanks florian!
     
  10. CapnDavey macrumors 6502

    CapnDavey

    Joined:
    Apr 11, 2015
    #10
    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)
     

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