Powering a GTX480 on cMP 1,1

Discussion in 'Mac Pro' started by Zeke D, Jan 28, 2016.

  1. Zeke D, Jan 28, 2016
    Last edited: Jan 28, 2016

    Zeke D macrumors 6502a

    Zeke D

    Joined:
    Nov 18, 2011
    Location:
    Arizona
    #1
    I've read quite a few threads on this, and a lot of it is contradictory. I have this EVGA windows video card:
    https://www.evga.com/Products/Specs/GPU.aspx?pn=B89674F6-FED6-464E-B0DC-B9B13929F8E8

    I saw on GPU-Z that this card requires 250w powered by an 8-pin and 6-pin connector. I'd like to power the 8-pin directly from the PSU using a data adapter like this one:
    http://www.amazon.com/gp/product/B007Y8FSMQ/

    Or a molex adapter like this one:
    http://www.amazon.com/gp/product/B007Y91B80/

    The wires feeding the SATA seem pretty small, as small as the traces that feed the 6-pin G5 connector.

    What are the thoughts on the best way to power this GPU?
     
  2. MacVidCards Suspended

    Joined:
    Nov 17, 2008
    Location:
    Hollywood, CA
    #2
    You are better off using Molex to PCIE adapters as molex is rated higher.

    You have them in Optical bays.
     
  3. Zeke D thread starter macrumors 6502a

    Zeke D

    Joined:
    Nov 18, 2011
    Location:
    Arizona
    #3
    Thanks for the feedback. It looks to be moot, somehow USPS managed to kill the card, so I'm back to the GeForce 210.
     
  4. MacVidCards Suspended

    Joined:
    Nov 17, 2008
    Location:
    Hollywood, CA
    #4
    Make sure you have all 14 pins powered.

    Some of the Dual 6 to 8 adapters only work from one side if used with just a single 6 pin.
     

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