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3 Monitor Setup Help

Last response: in Graphics & Displays
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April 10, 2012 8:37:09 PM

Hello,

So I am trying to help my brother with setting up his three monitors on his 5870. We have two DVI's and one DisplayPort -> DVI and thats the current setup.
Yet for some reason, windows will not allow all 3 to work at one. If I want monitor 1 and monitor 2 thats fine but it wont allow monitor 3 to be added and if I want it to be added I need to disable one of the other two (monitors 1 or 2).

I have a feeling it might be the display port but I am not really sure how to check this. I also went into CCC and when I want to make a group for EF, it only allows me to do a 2 monitor setup.

If you could help me with this I would be very grateful!

Thanks again,
Eli

More about : monitor setup

April 10, 2012 8:50:56 PM

What graphics card are you using? If it's a single card then it may be one that can only manage two monitors but gives you a choice of connections, ie. either (DVI + DVI) or (DVI + DP) but not (DVI + DVI + DP).
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April 10, 2012 8:52:35 PM

Doh! Forget that, I overlooked see the mention of 5870! ;o)
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April 10, 2012 8:53:00 PM

Is the DP to DVI an active adapter?
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April 10, 2012 8:54:34 PM

Thats my problem! I have no idea how to check... I sorta got one from school I think lol
i know it works great to have a dual monitor setup but it seems like something is problematic when I try 3 :( 
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April 10, 2012 8:58:11 PM

If your system will work with just the DVI and the DPtoDVI adapter - its likely you have a passive adapter.
An active adapter is like $30-35 - something like this:
http://www.amazon.com/Accell-B087B-005B-DisplayPort-Sin...

hope it helps...

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April 11, 2012 4:34:36 PM

As far as ive seen passive adapters don't do some kind of encoding or conversion to the signal - where as the active adapters do. So looks like you just need to find an active adapter like i linked earlier and should be good to go.
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April 11, 2012 6:04:26 PM

Sounds good thank you very much!
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April 11, 2012 6:05:22 PM

Best answer selected by ilikegirls.
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