GTX 680 4GB Classified issues on mac 3,1

Discussion in 'Mac Pro' started by BlueQube, Oct 19, 2013.

  1. BlueQube macrumors newbie

    Oct 19, 2013
    Hi all, Noobie here trying to resolve an issue with my GTX 680 4GB Classified

    Just received the card from the nice peeps at macvidcards. While i wait to hear from them i wanted post here and see if anyone could shed any light.

    3,1 mac pro tower
    2 x 2.8 GHz Quad-Core Intel Xeon
    Memory 8 GB 800 MHz DDR2 FB-DIMM
    OSX Mountain Lion 10.8.5
    Build 12F45

    So installed, boot screen all good default driver working YEH!!!!!
    Downloaded the correct drivers from Nvidia ( made sure i got the driver for the build of my machine 12F45

    The card seamed to work great but then i had some screen freezes is Starcraft II and when working in AE CS5, the thing is, its not happening all the time and if i go back to the osx default driver it seams to behave in Starcraft II but not in AE. Each time i have to do a hard reset to get out of the freeze.

    Is this a driver issue? is this a power issues to the card from my 3,1 mac?

    Note: i have 6 pin connectors from the mac to 8 pin on the card. i connected the 6 pin into the 8pin on the card they fit in the last 6 holes. Didn't think this was the issue as the card works up to a point.

    Thanks in advance sorry if im missing any info (newbie to forums):eek:
  2. pastrychef macrumors 601


    Sep 15, 2006
    New York City, NY
    I think you will need a 6-pin to 8-pin adaptor for the Classified versions.

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