ATi HD4670 AGP for PPC G5 -Let's make it possible!

Discussion in 'PowerPC Macs' started by ediflorianus, Apr 4, 2010.

  1. ediflorianus macrumors newbie

    Joined:
    Apr 4, 2010
    #1
    I'm proposing to this forum to make ATi HD4670 AGP work for PPC G5
    The GPU is in the iMac if I recall so I think on that basis is should not bee impossible .

    I think DX10 has to come to our Old G5'vs ... that we all love ... before the
    "Intel Empire " era....

    Can it be done? if not why not?
    IT's easier whit HD 3850 AGP ?

    I'm hoping a full cooperation with the forum on this matter ...
    What part of the bios do you need to edit in order to boot/work whit the G5 ?

    I also tried mounting a Wildcat on my G5 , but no boot :( I have a dual gpu wildcat AGP PRO .... dose not work... so interesting.
     
  2. Cindori macrumors 68040

    Cindori

    Joined:
    Jan 17, 2008
    Location:
    Sweden
  3. MacVidCards Suspended

    Joined:
    Nov 17, 2008
    Location:
    Hollywood, CA
    #3
    In the off chance that this guy WASN'T playing a belated April Fool's joke...let me explain a basic tenet of flashing.

    The card to be flashed must have a very similar card that exists OEM....THAT RUNS IN SAME ARCHITECTURE MACHINE.

    Basically, anything we have done for PPC was based on existing PPC card. AFAIK, best PPC cards where the G70 Nvidia cards and the X1900 ATI cards. There are NO INTEL ROMs that are going to work in PPC. The PPC ROMs were similar to PC BIOS but had this irritating tokenizing string that made writing and modding them a laborious process.

    The ONLY untried hope for AGP is the X1950 AGP. It used same core as X1900GT in G5 PCIE. It MAY be possible to get working. Reports at STrangedogs where that they got them to boot, only to lock on a Power Cable warning. The X1950 AGP where rare so not many to flash but your best bet. If there is some way for Intel kexts to run PPC drivers and cards, Netkas would know. But I wouldn't hold your breath.
     
  4. Dr.Pants macrumors 65816

    Dr.Pants

    Joined:
    Jan 8, 2009
    #4
    In addition to the Rominator's statements, in this case its OpenFirmware that's being played with - you would have to write an OpenFirmware ROM to run the card and the PPC driver, which may or may not be derived from whatever other drivers are out there (note: have to convert any endian data in the driver, know that much).

    So, basically you might have some success with the X1950 AGP (I used one in a P4 machine once, they're not too shabby IMO), but you might want to try and use a card that already has had a measure of success if you haven't had luck at flashing cards before.
     
  5. 300D macrumors 65816

    300D

    Joined:
    May 2, 2009
    Location:
    Tulsa
    #5
    The GPU being used in another machine is not the same as the card.
     
  6. Cindori macrumors 68040

    Cindori

    Joined:
    Jan 17, 2008
    Location:
    Sweden
    #6
    when he started talking about dx10 it was obvious he's either joking or trolling ;)
     
  7. ediflorianus thread starter macrumors newbie

    Joined:
    Apr 4, 2010
    #7
    I'm starting to regret I asked , but I searched the google for months with no success .... I already moded a 7800GS for my G5 , but I would have loved an upgrade... It's hard from 2x8800GTX & quadcore in 2008 to go to 7800GS and PPC (but Mac os x runs like hell ) last year and this.
     

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