See this is why I went ATi and not nVidia
Cheers
Cameron
KNOWN ISSUE
ATI CROSSFIRE CARDS
- Crossfire cards with 256 Megs of memory, running in CrossFire mode will run out of memory at very high resolution settings.
On very high resolutions, such as 1920x1440 with 6x antialiasing. In CrossFire mode the ATI drivers are more restrictive
about where resources are allocated, and as a result run out of memory sooner than with a single board. This running out of memory causes
the device context creation to fail. The result is that the game just sits in a loop with a black screen. If you experience a context creation failure
change your resolution to a lower setting (e.g. 1024x768 or even lower).
Curious which driver you are using?
I had some troubles with a few of the newer drivers until I tried the 82.12.
I had anything from some flickering to complete graphics corruption. The 82.12's fixed all of it.
Actually I use the one that came with the card (71.24). I have tried the later Forcware drivers, not exactly sure what their versions was, but some of them have made the flickering worse and some have made the system unstable. But I can't guarantee that I installed them correctly either.
I don't know if I've tried the 82.12 driver.
Maybe I should give it a try, can't get worse...
DO NOT RUN 3DMark06
3DMark06 was developed for SLi / Crossfire systems. According to Gamespot.com two 7800GTs on a NF4x16 board got 6FPS on many of the tests. The only card that has been able to get a decent score in 3D06 in a single format was the ATi X1900XTX
Use 3DMark05. It was developed when your card came out, and therefore can accurately test it.
Cheers
Cameron
According to Gamespot.com two 7800GTs on a NF4x16 board got 6FPS on many of the tests. The only card that has been able to get a decent score in 3D06 in a single format was the ATi X1900XT
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