6 Displays on Mac Pro 1.1 w/ Dual Radeon 5770

Discussion in 'Mac Pro' started by Ibrin, Aug 24, 2011.

  1. macrumors newbie

    Joined:
    Sep 30, 2004
    #1
    This may have been confirmed since I did this upgrade back in January (I couldn't find the info when I initially researched the upgrade). But here is a video confirming:
    • The Radeon 5770 does work in a Mac Pro 1,1
    • Dual Radeon 5770s can be installed in a Mac Pro 1,1
    • You can run three DVI displays on a single Radeon 5770
    • Dual-Link Active Adapters are not needed for three displays

    http://www.youtube.com/watch?v=rgbnE_NVuVY
     
  2. macrumors newbie

    Joined:
    Mar 23, 2012
    #2
    i need help

    Hy,
    Sorry, if my english is bad... i try to find a answer, and in france no one have. I hope you'll can.
    I have a Macpro 2006, 1,1.
    I change graphic card (1900XT) for ATI radeon 5770.
    I have 2 display, but just one works. Just on DVI.
    I bought the minidisplay port (displayport to DVI), but no signal... The cable works, i test it whith macbook pro on display. It's ok !
    I don't understand, everyone who makes this switch works whith many display.
    Have you an idea ?

    thanks
     
  3. macrumors 68040

    Mackilroy

    Joined:
    Jun 29, 2006
    #3
    Did you buy a 5770 from Apple or from a PC manufacturer to flash? What resolution is the monitor? Are you using a dual-link DVI cable to connect?
     
  4. macrumors newbie

    Joined:
    Mar 23, 2012
    #4
    yes, buy on apple store.

    Monitor.
    1st monitor : 1900x1200 IILAYAMA E2607
    2nd monitor : 1680 x 1050 .Samsung syncMaster 206bw
    (i put the MDP on two display but nothing change... no signal)

    I'm using minidisplayPort to DVI adapter, from apple.
     
  5. macrumors 6502a

    Joined:
    Dec 20, 2010
    #5
    What you need is a single link ACTIVE DP to DVI adapter, the one from Apple will not work the way you are trying to use it, it will work on a Mac Book Pro however.
     
  6. macrumors newbie

    Joined:
    Mar 23, 2012
    #6
    Thanks,
    I think it's a good answer.
    I try to find a another cable, but i'll make more research because i'm sure to really understand.
    for example, if i read apple FAQ, i found this :
    http://support.apple.com/kb/HT3382?viewlocale=en_US

    9. What is the difference between an active adapter and a passive adapter?

    An active adapter can convert a signal from one connector to another. The Apple Mini DisplayPort to DVI and Apple Mini DisplayPort to VGA adapters are active adapters. A passive adapter acts as a pass-through from one connector type to another and does not convert a signal. The Apple Mini DisplayPort to Dual-Link DVI adapter is an example of a passive adapter.


    or i bought MDP to dvi. active ! no !?
     
  7. macrumors 6502a

    Joined:
    Dec 20, 2010
    #7
    The Apple Mini DisplayPort to Dual-Link DVI adapter is an example of a passive adapter.




    No you bought a passive adapter, not active, you need active.
     
  8. macrumors newbie

    Joined:
    Mar 23, 2012
    #8
    No you bought a passive adapter, not active, you need active.[/QUOTE]


    ok !
    i find one, and i'll be back when it will work...

    thanks for your patience.
     
  9. macrumors newbie

    Joined:
    Mar 23, 2012
    #9
  10. initialsBB, Mar 28, 2012
    Last edited: Mar 28, 2012

    macrumors 6502a

    Joined:
    Oct 18, 2010
    #10
    C'est bizarre j'ai une 5770 avec un écran en DVI et un autre avec ceci :
    http://www.macway.com/fr/product/13880/adaptateur-mini-displayport-vers-dvi.html

    Et ça marche ! Peut-être qu'il y a un problème avec ta carte ? Es-tu sûr de l'avoir bien installée ? Peut-être que tu devrais essayer de la sortir, et de la remettre bien dans le slot ?


    In english: I am suggesting there could be a problem with the card or that he can try reseating it in the PCI slot ?
     
  11. macrumors newbie

    Joined:
    Mar 23, 2012
    #11
    In english: I am suggesting there could be a problem with the card or that he can try reseating it in the PCI slot ?[/QUOTE]

    déjà fait.. j'ai même réinstaller la XT1900, puis les 2 ensembles.
    Si ça marche chez toi c'est surement du au fait que ton macpro est plus récent, le mien est de 2006.
    Peut être un problème de firmware... je ne sais pas.
    Mais pour le coup, je suis triste, j'ai perdu l'habitude de travailler avec un seul écran.
     
  12. macrumors newbie

    Joined:
    Mar 23, 2012
    #12
    It's ok !!!!
    Everything it's good ! it's works...

    And it's works with 2 differents cable Minidisplayport to DVI :
    the apple cable works.
    the acell cable works.

    I repeat :
    I have Macpro 1.1, 2006, and 2 display with ATI RADEON HD 5770.

    Thanks.
     
  13. macrumors 6502a

    Joined:
    Oct 18, 2010
    #13
    So what happened between your 2 posts ? :p

    Happy it's fixed though.
     
  14. macrumors newbie

    Joined:
    Feb 28, 2014
    #14
    5770 avec Macpro 1.1

    Comment avez-vous résolu le problème ?
    Je viens d'installer une 5770 Apple dans un Macpro 1.1 et je suis dans la même situation que vous au départ.
    Merci
     

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