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Crossfire Radeon HD

post #1 of 17
Thread Starter 
I have One crossfire cable. and 2 4890s. does it require both? crossfire cables to crossfire. or can you crossfire, with 1 chord and 2 4890s,
    
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post #2 of 17
You only need one.
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post #3 of 17
Thread Starter 
I have been told different how accurate is this? I have two radeon 4890 HDS and one Crossfire Wieson Cable. I have been told you need both cable to cover both ports
    
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post #4 of 17
You can use 2 but you only need one.
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post #5 of 17
Thread Starter 
And what is the benefit with 2? or why would someone only use one? Once I have them plugged together... How do i actually enable the crossfire. it doesnt auto do it.. i benchmarked and it i saw no difference...
    
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post #6 of 17
Two ports gives you the option of setting up tri/quad crossfire.
With two cards, you really only need one connector.

Should be able to enable crossfire in the catalyst control center..
Waiting on X399
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post #7 of 17
Is there a Xfire driver?
I dont think so. So you must be able to through CCC
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post #8 of 17
No benefit for using both. The extra slots to use the crossfire cable is meant for using more than 2 cards.
Like this;
f1_large_1.jpg
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post #9 of 17
Thread Starter 
So the conclusion of this thread is that Indeed the Radeon 4890s only require one crossfire "pigtail" to connect to both cards and the extra connection ports are available upon doing tri/quad crossfire.
    
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post #10 of 17
Quote:
Originally Posted by L337Something;12230813 
So the conclusion of this thread is that Indeed the Radeon 4890s only require one crossfire "pigtail" to connect to both cards and the extra connection ports are available upon doing tri/quad crossfire.

Not only the conclusion of this thread, but the consensus of pretty much everyone.
Most of the newer cards in certain series don't even have 2 crossfire connections anymore, and the cables are exactly the same as they have always been.
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