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5970 BE crossfire not performance problem

post #1 of 6
Thread Starter 
Hey everyone.
I have a problem with my cards 2x5970 BE. I have run 3Dmark and few other bench apps and when i bench with one card i get more points when i have install two cards. (BTW both cards work great - tested). Does any one have an suggestions.

My PC. ASUS P6Tv2
9GB`s 1600 OCZ
1200 PSU Tagan
2 x 500 Gb SSD drives
2 x 5970 CF
i7 920 C0 (Damm C0 )

Thanks.
post #2 of 6
Try these drivers: http://downloads.guru3d.com/AMD-Catalyst-11.1a-Hotfix-%28BETA-8.82.2%29-download-2666.html

However, before that you should uninstall your old drivers thru the driver app, then use drivesweeper or other driver cleaner, make sure you are free of old catalyst files.

Then install the 11.1a drivers. Then run unigine 2.1, note results with and w/o CFX on.
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post #3 of 6
Quote:
Originally Posted by snakebitex;12088895 
I have a problem with my cards 2x5970 BE. I have run 3Dmark and few other bench apps and when i bench with one card i get more points when i have install two cards.

I fail to see the problem...

You get more points with 2 cards installed? Naturally.
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post #4 of 6
I think he meant that when he benches with one card he gets more points than when he uses both cards.
Read between the lines...or the words I guess. smile.gif
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post #5 of 6
Well make sure that the benchmarks are fullscreened (since Crossfire needs that to work) and that Crossfire is enabled.
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post #6 of 6
If your CPU is at the stock 2.66ghz, you're already bottlenecking one 5970 yet alone two. So that's why when you add the second your scores drop. Make sure Crossfire is enabled in CCC.
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