I'm trying to run 2x 30inch ACD off this with the additional MDP>Dual Link DVI cable. Do i need to return this item?

I ideally want to run the 30inch ACD from the DVI port, and i have bought the MDP>Dual Link DVI cable too, thinking i could run either my other 30inch ACD OR a 21 inch DVI Formac i also run, depending on which is not being used on my PC at the time.
BUT it seems once i plug in the main ACD 30 to the DVI Slot, NOTHING will run through the DVI Dual Link Cable. is this a User / softwar / config issue? or is this the wrong product for what i need? and have Apple once again only focussed on their 27inchLED units?

  • Asked by Daniel T
  • Dec 17, 2010
ATI Radeon HD 5770 Graphics Upgrade Kit for Mac Pro (Mid 2010)

ATI Radeon HD 5770 Graphics Upgrade Kit for Mac Pro (Mid 2010)

Product No Longer Available

1 Answer from the Community

  • You can use all three ports of the 5770 simultaneously. You will need to use this adapter. apple store product is /us/product/MB571Z/A?fnode=MTY1NDA5OQ&mco=MTA4MzU1ODY
    Also, please read Apple support doc HT4279

    • Answered by Bruce N from Colusa
    • Aug 12, 2011