Firmware patch for GTX 7800

Discussion in 'PowerPC Macs' started by vddrnnr, May 3, 2018.

  1. vddrnnr macrumors member

    vddrnnr

    Joined:
    Jan 23, 2017
    #1
    Hi all,

    I found this 7800GTX which on has 256mb of VRAM do you think it can be patched as an fx4500?

    Best regards,
    voidRunner

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  2. DearthnVader macrumors 6502a

    DearthnVader

    Joined:
    Dec 17, 2015
    Location:
    Red Springs, NC
    #2
    There is no benefit to flashing the Quadro ROM's to a Geforce card, the Mac card had the 3-Din stereo 3D port, and the Geforce cards lack this.

    Stereo 3D is the only Quadro feature available to OS X, other than Quadro's that Support ECC Vram.

    nVidia never enabled any of the Professional 3D features in the drivers.

    Best to just flash it with the OEM 7800 GTX PowerPC Fcode ROM, it will likely perform better.
     
  3. vddrnnr thread starter macrumors member

    vddrnnr

    Joined:
    Jan 23, 2017
    #3
    Hi DearthnVader,

    Do you know where can I find the 256mb VRAM firmware?
    I only found the 512mb one.

    Best regards,
    voidRunner
     
  4. DearthnVader macrumors 6502a

    DearthnVader

    Joined:
    Dec 17, 2015
    Location:
    Red Springs, NC
    #4
    Likely the 512mb one will work fine on your card, if not, let me know, and I'll see if I can drop an edit on it.

    Note:Save you PC VBios first, we'll need it for editing.
     
  5. vddrnnr thread starter macrumors member

    vddrnnr

    Joined:
    Jan 23, 2017

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