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3 monitors(eyefinity) on radeon 7950

ok so i have a radeon hd sapphire 7950 graphics card. I finally got my third screen, as i had been on 2 for a while. the card has the the following outputs; dvi-i,dvi-d, hdmi, and displayport. (dvi's are dual link btw) When i plug in the screens, it only will support 2 of them at once. And i know it can do 4, it's a 3gb card and is made to support up to 4 screens. i read that apparently you have to have one monitor plugged into displayport for this to happen. if this is true, can i just buy a simple displayport to dvi-i converter? or could i just buy a cable like this for like the same price and use it rather than the dvi-i to hdmi
http://www.ebay.com/itm/6-FT-DisplayPort-to-HDMI-Male-Cord-Cable-for-HP-Alienware-Lenovo-Dell-Laptop-PC-/271246702780?pt=US_Video_Cables_Adapters&hash=item3f279038bc)

thanks in advance
10 answers Last reply Best Answer
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  1. you can do it with a converter or a cable, it doesn't matter, just as long as you're using the displayport as one of the outputs.
  2. you need to use an ACTIVE displayport to DVI adapter such as this one.

    it needs to be an active adapter, it cant just be a passive adapter or cable.

    http://www.amazon.co.uk/Startech-com-DisplayPort-DVI-Active-Adapter/dp/B004SUO1GM/ref=sr_1_1?ie=UTF8&qid=1377124290&sr=8-1&keywords=displayport+to+dvi+active
  3. Jaxem said:
    you can do it with a converter or a cable, it doesn't matter, just as long as you're using the displayport as one of the outputs.


    mauller07 said:
    you need to use an ACTIVE displayport to DVI adapter such as this one.

    it needs to be an active adapter, it cant just be a passive adapter or cable.

    http://www.amazon.co.uk/Startech-com-DisplayPort-DVI-Active-Adapter/dp/B004SUO1GM/ref=sr_1_1?ie=UTF8&qid=1377124290&sr=8-1&keywords=displayport+to+dvi+active


    i dont understand why i have to use displayport but youre saying i cant just get a displayport to hdmi cable?
  4. Best answer
    you can only use 2 normal ports on an ati card and you need to use the displayport for a third monitor but you need a displayport to dvi or hdmi ACTIVE adapter, a cable will not work.
  5. mauller07 said:
    you need to use an ACTIVE displayport to DVI adapter such as this one.

    it needs to be an active adapter, it cant just be a passive adapter or cable.

    http://www.amazon.co.uk/Startech-com-DisplayPort-DVI-Active-Adapter/dp/B004SUO1GM/ref=sr_1_1?ie=UTF8&qid=1377124290&sr=8-1&keywords=displayport+to+dvi+active


    Correct, you can find these in cable or adapter form, but it does need to be active.
  6. mauller07 said:
    you can only use 2 normal ports on an ati card and you need to use the displayport for a third monitor but you need a displayport to dvi or hdmi ACTIVE adapter, a cable will not work.


    alright thanks this blows i gotta spend like 50$ on a frickin adapter
  7. Yeah, active adapters aren't cheap :(
  8. Jaxem said:
    Yeah, active adapters aren't cheap :(


    yeah its bad really the prices, is why i recommend sapphire flex cards to people, support 3 monitors on all 3 ports and a 4th on the displayport.

    atleast he does not need a dual link dvi adapter, they are more than double the price.
  9. mauller07 said:
    Jaxem said:
    Yeah, active adapters aren't cheap :(


    yeah its bad really the prices, is why i recommend sapphire flex cards to people, support 3 monitors on all 3 ports and a 4th on the displayport.

    atleast he does not need a dual link dvi adapter, they are more than double the price.


    so this would work? http://www.newegg.com/Product/Product.aspx?Item=N82E16814999030
  10. yeah should be perfectly fine mate.
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