Pre-flashing questions on a 7800GTX (256mb)

Discussion in 'PowerPC Macs' started by mulholland13, Dec 2, 2015.

  1. mulholland13 macrumors newbie

    Nov 29, 2008
    I was recently given a PCIe 7800GTX (not GT) with 256mb of RAM and if possible would like to flash it and pop it into my late 2005 G5.

    After a bit of digging, I've found roms for the 512mb GTX and the 256mb GT, but am coming up short in trying to find a rom for a 256mb GTX. Additionally, I've found a bit of conflicting information regarding the usability of the 256mb GTX (modded rom too large for the card, card works only in 10.4, etc.).

    That in mind, I was hoping someone might be able to 1) confirm is the card is usable on a G5 running 10.5, and if so 2) point me in the right direction of a usable rom.
  2. cw48494 macrumors regular


    Jun 17, 2015
    Pretty sure you aren't able to use that card, the modified rom would have came from an FX4500 which only came in 512mb flavors.
  3. tevion5 macrumors 68000


    Jul 12, 2011
    In your ref you say you had a G5 Quad with 32GB memory. How is this possible?
  4. cw48494 macrumors regular


    Jun 17, 2015
    It's sitting in my closet, haven't had it long.
    8x4gb dimm

    It sees 32gb installed but can't utilize all of it.
  5. 128keaton macrumors 68020


    Jan 13, 2013
    That is cool. Imagine bringing that back to 2005

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