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Crossfire not kicking IN!

post #1 of 10
Thread Starter 
I'm running the crysis benchmark tool in window mode with CCC also visible on the screen and my second card shows 0% activity while the benchmark is running.

I know its not just a refresh problem because when I change the card to my primary, it shows activity in the 90%'s.

Another way I know is that I get worse results with Crossfire enabled. Any guesses?

BTW I just upgraded to the 10.10's.
Edited by GSingh - 12/30/10 at 7:32pm
    
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post #2 of 10
I had cfx stop working on me one time and was told to reinstall the drivers, overtop the old drivers.

Worked for me, might want to give it a try.
post #3 of 10
Try the 10.6 drivers. They have worked the best for my 4890s. It might solve your issue.
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post #4 of 10
Windowed mode only works with single gpu iirc.
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post #5 of 10
Quote:
Originally Posted by tsm106 View Post
Windowed mode only works with single gpu iirc.
+1
Crossfire only works in full screen.
post #6 of 10
Thread Starter 
Might have to try that then haha.
    
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post #7 of 10
Crossfire does not work in windowed mode as many pointed out....
Also, make sure that you also download the "Crossfire profiles" from the driver page.
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post #8 of 10
I used the 10.10s and CF didn't work. When I upgraded to 10.12 and installed the 10.12 CF Profiles everything worked flawlessly.
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post #9 of 10
Thread Starter 
I'im not going past the 10.5s until BFBC2 framerates come back up but I'll try the crossfire profiles for 10.5
    
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post #10 of 10
try taking out the power out of the GPU's and put it back in. reinstall drivers and maksure the two cards are functioning correctly.
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