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Eyeinfinity with crossfire

post #1 of 6
Thread Starter 
Wondering if you got crossfire setup, can you use DVI and HDMI from one card and DVI from the other card? Or are you forced to use the display ports?
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post #2 of 6
You have to connect all adapters to the first card. So, yes, you are stuck with display ports. Which isnt a bad thing...
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post #3 of 6
Thread Starter 
darn. was hoping that would work. but that would be nvidia surround...

people complained about screen tear with display port and dvi port used together. so was hoping to eliminate that.
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post #4 of 6
The screen tearing is caused by sync cap of 120 rather than the usual 60.
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post #5 of 6
Thread Starter 
Quote:
Originally Posted by tehpyrate View Post
The screen tearing is caused by sync cap of 120 rather than the usual 60.
Unfortunately, my little brain did not register that...you mean if I have vsync on (which I mostly do not mess with), I will not see screen tearing?
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post #6 of 6
Quote:
Originally Posted by Awaz View Post
Unfortunately, my little brain did not register that...you mean if I have vsync on (which I mostly do not mess with), I will not see screen tearing?
You probably will have the problem the problem is made worse by v sync; It doesn't effect everyone but in your situation it is certainly possibly why ATI cant make Xfire let you use connections from both cards, or at least have made all cards have 3 display ports and just packaged £5 adapters with them I will never know :'( Hence why i have eyefinity 6 cards.

the bug is caused by eyefinity mode for some reason erroneously v syncing to 120hz regardless of your screens refresh rate, also if your screens have different refresh rates then it will use the primary screen to peg too regardless of what refresh rates are supported on the secondary screens.

In my experience turning off v sync fixed it but YMMV Ultimately though this issue caused me to swap to an eyefinty 6 card as my house mate was getting a 5870 anyway for a single screen I paid him the difference and had me 6 display ports

PS. it isn't so much a normal Tear as a slow out of sync line that flows up your screen looks kind of weird and is pretty annoying. this can be replicated on eye6 cards by turning on all your screens at different times and turning on v sync
Edited by Dr216 - 3/3/11 at 8:30am
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