6 monitors on 2 5450's

I have 2 ATI HD 5450 cards on a WinXP machine and I'm trying to use all 3 ports on each card, but it doesn't seem to work.

The cards have (1) HDMI, (1) DVI, and (1) VGA each.

I currently have (1) HDMI and (1) DVI/VGA used on each and it works fine, but CCC will not let me add the 3rd display to the configuration unless I swap an enabled display out.

So, is this a CCC limitation in XP? It seems that 2 desktops is the max.
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  1. i think you need to put one of the monitor through display port for it to work. bummer
  2. for the third output to work on each card, you have to have a display port monitor or use an adapter

    so if you are using 2 cards, you need to dp monitors or 2 adapters
  3. I thought the display port was needed on cards that had 2 DVI ports because of the TDMS signal.

    Does VGA use the same signal?

    Since the card has no display port output, why would one be required? None of the displays (mix of TVs and monitors) have display port so if that's needed it may be out of the question.
  4. It is up to the manufacturer to design a card that can take advantage of Eyefinite. The following is from AMD's website:


    ATI Eyefinity Technology can support up to 3 displays using a single enabled ATI Radeon™ graphics card – the number of displays may vary by board design and you should confirm exact specifications with the applicable manufacturer before purchase. ATI Eyefinity technology works with games that support non-standard aspect ratios, which is required for panning across multiple displays. To enable more than two displays, additional panels with native DisplayPort™ connectors, and/or certified DisplayPort™ adapters to convert your monitor’s native input to your cards DisplayPort™ or Mini-DisplayPort™ connector(s), are required. Digital management rights restrictions may apply.

    While your HD 5450 has a Displayport, the implementation of it does not seem to meet Eyefinity specifications.

    Have you tried installing the most recent drivers.
  5. To clarify: the card has NO display port.

    So I guess there would have to be a dvi to display port adapter for this card to push 3 monitors.

    I have CAT 10.6 installed.
  6. Ooops.

    I thought I've read you have a Displayport. Well, that is the issue, Eyefinity requires Displayport to work.
  7. That brings up another point; is Eyefinity required for 6 monitor output? If so, than it will not work on XP no matter what since Eyefinity isn't supported on XP.
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