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Eyefinity q and a

Last response: in Graphics & Displays
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March 3, 2010 8:38:29 AM

My first question is can I do xfire 5850's in eyefinity to run a 5760x1080 resolution without buying a active display port adapter?
http://www.stum.de/2010/03/03/running-three-monitors-of...
This article gave me the implication that if I had 58xx card in xfire I would not have to buy a active display-port.
Because a graphics card can only support up to two TDMS Signals (refer to article) So by having that second card I would have spot to plug in my 3 monitor? With out buying active display port which is key
spending $100 dollars on a adapter... yuck!


If that doesn't work can I


Use a vga to display port active dongle. The vga active dongles go for 30 rather than dvi active dogles which are $120

(this is the link to the dongle)
http://www.amazon.com/Accell-B101C-001B-UltraAV-Display...
I would be using this with a 5870 or 5970

please forgive my stupidity.

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March 3, 2010 1:38:28 PM

Not stupid, good question...

I xfired my 5850's to run three panels and it worked fine - usual disclaimer of various games doing weird things. But I used a display with a DP input to get around that DP issue.

But xfiring cards does not let you use those connectors on the second card. The only connectors you can use are the ones on the primary video card. So thats out.

So, you must use that display port adapter in some form or another. This site says it works fine.

http://www.widescreengamingforum.com/forum/viewtopic.ph...

As usual, not all connectors are the same and there are max resolution issues. Unless someone uses that specific model its going to be hard to say that works, with your monitors at your resolution
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March 3, 2010 1:55:11 PM

also if you can rotate the displays 90 degrees, you would get 3240x1920 which wouldn't be so wide
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March 3, 2010 2:04:42 PM

so can i run 2 1280x1024 monitors on the sides with a 1680x1050 in the middle with eyefinity(2x5770's)

also is a 850W PSU enough for CF5770's?
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March 3, 2010 2:07:46 PM

Mousemonkey- I was looking at that list from AMD and they list several passive DP to DVI adapters as validated, but everything I've heard says only the active adapters work... any ideas on that?
Has anyone tried/had any luck with the passive adapters AMD lists as validated?
(http://www.amazon.com/exec/obidos/tg/detail/-/B001CXXD2...)
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March 3, 2010 2:14:53 PM

flyinfinni said:
Mousemonkey- I was looking at that list from AMD and they list several passive DP to DVI adapters as validated, but everything I've heard says only the active adapters work... any ideas on that?
Has anyone tried/had any luck with the passive adapters AMD lists as validated?
(http://www.amazon.com/exec/obidos/tg/detail/-/B001CXXD2...)

I have no idea which of those will actually work or not, I got that list from an article posted over at Hardocp.
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March 3, 2010 2:19:08 PM

Haha- thats actually where I first saw it as well, just thought I'd ask the question here since it came up.
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March 3, 2010 3:38:00 PM

Thank you for your reply, I will probably end up going with a single 5870 and then xfire later. Unless I can find a 5970 sometime before then end of March that's 600.

So if these vga adapters are working fine what is the benefit of using a dvi active dislplay dongle and shelling out all that extra cash?
vvhocare5 said:
Not stupid, good question...

I xfired my 5850's to run three panels and it worked fine - usual disclaimer of various games doing weird things. But I used a display with a DP input to get around that DP issue.

But xfiring cards does not let you use those connectors on the second card. The only connectors you can use are the ones on the primary video card. So thats out.

So, you must use that display port adapter in some form or another. This site says it works fine.

http://www.widescreengamingforum.com/forum/viewtopic.ph...

As usual, not all connectors are the same and there are max resolution issues. Unless someone uses that specific model its going to be hard to say that works, with your monitors at your resolution

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March 3, 2010 3:39:16 PM

Best answer selected by anime.
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March 3, 2010 3:50:17 PM

Take a look at this chart
http://www.tomshardware.com/reviews/radeon-hd-5870,2422...
You could maybe be fine. What kind of psu is it?

user-one said:
so can i run 2 1280x1024 monitors on the sides with a 1680x1050 in the middle with eyefinity(2x5770's)

also is a 850W PSU enough for CF5770's?

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