GT120 as Physics - GTX 285 as GPU

Discussion in 'Mac Pro' started by bbadalucco, Oct 7, 2009.

  1. bbadalucco macrumors 6502

    Jan 4, 2009
    I have a 2009 Mac Pro with a GT120. I'll be receiving my GTX 285 tomorrow morning and was curious if I could just move the GT 120 up two slots and put the GTX285 where the GT120 current is?

    I only have one monitor which I'll run off the 285.

    When I game via windows will that setup allow me to use the GT120 as a dedicated physics card?

    Thanks for the help in advance.

    Also, I took a look on mroogle but was mainly finding reference to the 8800 and ATI4870...which is no use to me.
  2. CSHawkeye81 macrumors member

    Jun 30, 2009
    Arlington VA
    This is pretty funny since I just set this up tonight, just put the GT120 in the next free pci express slot and you are good to go. Install the latest drivers in which you want to make sure both cards are using and then viola. Check the nvidia control panel and it should set the GT120(9500gt when using the latest drivers).
  3. bbadalucco thread starter macrumors 6502

    Jan 4, 2009
  4. lunged macrumors newbie

    Sep 11, 2007
    Is this information accurate? I really want it to be, but I thought the GTX285 used two power cables, which meant you couldn't use a second card... or was it you just couldn't use two GTX285's...

    bbadalucco, did you end up doing this and is it working well?
  5. MacVidCards Suspended

    Nov 17, 2008
    Hollywood, CA
  6. 10THzMac macrumors 6502

    Dec 17, 2007
    Rominator is right, but in any case you can power two 285s, or even a 285 and 295 using a cheap external amp. The following might help

    GT120 : zero extra PCI
    8800GT: one extra PCI 6 pin
    Quadro 4800 Mac: one extra PCI 6 pin
    GTX 285: two extra PCI 6 pin
    295: more (one 6 and one 8??)

    I have one 285 powered internally and one exernally

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