MacVidCards GTX Titan in Mid 2010

Discussion in 'Mac Pro' started by TheHerdForever, Oct 23, 2013.

  1. TheHerdForever macrumors member

    TheHerdForever

    Joined:
    May 11, 2012
    #1
    Has anyone purchased and installed a MacVidCards modified GTX Titan in a 2010-2012 MP? I haven't been able to get the card running due to lack of power cables and I was wondering two things:

    (1) From what I've been told, I can run the card on using 2 x 6-to-6 pin PCI-E PCI-e cables and connect them to the 2 PCI-e ports on the mobo, but they must be made for a USA Mac Pro? My question: Is this true? Bare Feats was able to get the card running using the MP's internal power supply, as am I, but he can't remember the cables he used. Also, if anyone can provide links to reliable PIC-E/e cables, that would be most appreciated!!

    (2) What is the total power the Titan is getting if I use 2 x 6-to-6 pin cables? I'm assuming 150W (75W + 75W from the PCI-e ports on the mobo). What about power from the PCI slot the Titan is in?

    I would love to get the Titan up and running so I can provide someone that wants to buy one a little more information on how I (and others) were able to get it to work. Thanks to all replies!

    Frank
     
  2. DanielCoffey macrumors 65816

    DanielCoffey

    Joined:
    Nov 15, 2010
    Location:
    Edinburgh, UK
    #2
    The Titan will be fed up to 225W in your MP with 2x6-pin cables... 2x75W from each cable and 75W from the PCI slot.
     
  3. TheHerdForever thread starter macrumors member

    TheHerdForever

    Joined:
    May 11, 2012
    #3
    That's what I thought!! Now all I need to do is find out where I can get HIGH QUALITY PCI-E/e 6-to-6 pin cables, then I am good to go. For the record, MacVidCards doesn't provide power cables for the Titan (as stated on his Titan eBay advertisement). I kinda understand why he does this, but when you spend that kind of money on a video card, it would be nice to have them included. Oh well....I guess I have to buy them on my own. BTW, thanks for the info Daniel!!

    Frank
     
  4. pastrychef macrumors 601

    pastrychef

    Joined:
    Sep 15, 2006
    Location:
    New York City, NY
    #4
    The two 6 pin connectors on the Mac Pro's logic board is rated to only provide up to 75W each, but can in fact provide much more. I have seen screenshots of them providing up to 110W. Whether it is safe to do so, is up to the users to decide.
     
  5. netkas macrumors 65816

    Joined:
    Oct 2, 2007
    #5
    I would get a third power source from internal 4-pin molex (mp2008) or sata-power with 4-pin molex adapter (mp2009+) and conenct all this way:

    6-pin on card <- 6-pin from mobo

    8-pin on card <- two 6-pin to 8-pin Y split <- 6-pin from mobo + 6 pin via 4-pin moles-> 6-pin conenctor

    These way you can provide additional 20-30 watts (doubt that cable has much power) to titan.

    But I can't say that's 100% correct way.
     
  6. TheHerdForever thread starter macrumors member

    TheHerdForever

    Joined:
    May 11, 2012
    #6
    NetKas:

    And this is where I think most of us got it wrong. MacVidCards mods the Titan so it CAN use the 2 x 6 pin ports on the MP mobo. You don't need an external power supply for the Titan (just ask Bare Feats). However, I do want to raise the following question: Can the GTX Titan EFFICIENTLY USE the extra power anyways?

    Frank

    ----------

    Pastry,

    How did you bump up the power from 75W to 110W? Was this user initiated, or done automatically via the OS?

    Frank
     
  7. pastrychef macrumors 601

    pastrychef

    Joined:
    Sep 15, 2006
    Location:
    New York City, NY
    #7
    The video card decides how much power to take. 6 pin connectors on a video card are rated to pull up to 75W. 8 pin connectors are rated to pull up to 150W.
     
  8. DanielCoffey macrumors 65816

    DanielCoffey

    Joined:
    Nov 15, 2010
    Location:
    Edinburgh, UK
    #8
    Some folks feeding a legitimate Apple card with 2x6-pin cables have seen it draw unevenly between the two connectors. From memory it was around 40-50 watts from one connector and around 100-110 watts on the second.
     
  9. slughead macrumors 68040

    slughead

    Joined:
    Apr 28, 2004
    #9
    Those SATA connectors aren't rated for more than 1.2 amps, IIRC, btw.

    You may burn out your connector.
     
  10. TitouDoc macrumors member

    Joined:
    May 24, 2004
    #10
    I've missed something or ?

    On the MacVidCards Titan eBay webpage...

     
  11. jetjaguar macrumors 68030

    jetjaguar

    Joined:
    Apr 6, 2009
    Location:
    somewhere
    #11
    yea you need an another psu .. i have the 780gtx from him and i am using the 6 pin x 2 with no issues
     
  12. TheHerdForever thread starter macrumors member

    TheHerdForever

    Joined:
    May 11, 2012
    #12
    NVIDIA Web Drivers

    MacVC:

    Now that I've got the GTX Titan working, I was wondering what and where are the latest NVIDIA Web Drivers for a Mid 2010 MP that runs Mavericks 10.9?

    Thanks,
    Frank
     
  13. jasonvp macrumors 6502a

    jasonvp

    Joined:
    Jun 29, 2007
    Location:
    Northern VA
    #13
    nVidia hasn't released them yet. There's nothing MVC can do about that.
     
  14. TheHerdForever thread starter macrumors member

    TheHerdForever

    Joined:
    May 11, 2012
    #14
    Thought so. Hopefully they will come out soon. Thanks Jason!

    Frank
     
  15. emeldahay macrumors member

    Joined:
    Jul 7, 2007
    #15
    Anyone know a supplier? I need a pair for a titan too.

    Thanks
     
  16. OrangeSVTguy macrumors 601

    OrangeSVTguy

    Joined:
    Sep 16, 2007
    Location:
    Northeastern Ohio
    #16
    Any of them on ebay work. Even the PCIe cabels from the G5 will work. Just search for Mac Pro PCIe power
     

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