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putting HD7970 in Crossfire didn't improve performance? - Page 3

post #21 of 23
Thread Starter 
Quote:
Originally Posted by noobdown View Post

There is no load being put on one of your gpu's notice how one is 300/150 instead of 1100 and 1550.

in gpu-z on the card that is clocking properly tab goto the main page and hit the blue ? and run it in full screen for about 30 seconds and tell us if the speeds change on the card with the 300/150 speed please.

It starting to look like a defective card or a driver problem.

I'll try that tommorrow, and post the result!
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post #22 of 23
Thread Starter 
I've tried monitorring the cards clock speeds when playing some crysis3, and the second card does go to the normal 1100/1550, so I guess black ops2 doesn't trigger the second card into full load..
So the next question is how to change when the card goes into high performance mode?

I've found someone having the same issues with a cfx HD7950, but I can't really how he fixed it?
http://www.overclock.net/t/1366145/7950-crossfire-bottom-card-stuck-at-300-150
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post #23 of 23
This is a driver problem mate I am sure of it. Black ops 2 is one of the best scaling games out there and has its own crossfire profile. Have you used AMD's own driver uninstaller program and then installed the latest 13.2 driver WITHOUT the separate caps package? If not, please start there so we can work forwards.

Be sure to uninstall the caps package manually first before doing the above if you have it installed.


Best Regards,
Stu.

Sent from my iPad using Tapatalk HD
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