Currently I have two XFX 7770's in Crossfire X http://www.newegg.com/Product/Product.aspx?gclid=CPut-56cobsCFQISMwodCSYAKw&Item=N82E16814150666&nm_mc=KNC-GoogleAdwords&cm_mmc=KNC-GoogleAdwords-_-pla-_-Desktop+Graphics+Cards-_-N82E16814150666&ef_id=UqP18gAABGGZ3AFt:20131208180823:s I have one monitor hooked up the DVI-I (Dual Link) connector and one hooked up via the HDMI connector with a HDMI to DVI cable. To my knowledge in order to get a 3rd monitor in extended desktop mode I have to use the Displayport. Which would require a Displayport to DVI adapter. If possible could someone confirm this for me and send me a link to one that would run a 22" 1920x1080 resolution monitor. Any help will be greatly appreciated!
That card shows 2 DVI. Is there a reason you can't use the other?
AMD doesn't allow for two DVI inputs and one HDMI input on 7000 series and older. Only the new R 200 series allow for any 3 video ports to be used
Interesting. I did not know that. Seems like a bad decision on AMD's part. But then I've not used a Radeon since the 9800 Pro.
The HDMI port shares an output with the second DVI connection on those cards. It's basically a glorified adapter. That's why you can't use both DVI connections along with the HDMI.
You are correct. In order to run triple monitors, one of them needs to be attached to the DP connection (the reason is explained above). None of your monitors have a Display Port connection? If one does, the obvious choice would be to use it, and then use the 2 DVI ports (or the first DVI port and the HDMI port) for the other monitors. If you still need an adapter, pretty much any active display port to DVI-D adapter should work fine, such as this one: