Quote Originally Posted by Tetedeiench View Post
Sorry, been a while away from this post

Try OCCT GPU in fullscreen mode, it should work... i have to admit i don't have any crossfire @ home to test that though
As of 0.41, you can't select stress testing and full screen at the same time. Also, in fullscreen, I would have no way to monitor if all GPUs were loaded. Maybe an FPS increase would show that they were, but then how could you be sure if it was just using 2 or 3 GPUs rather than all four?

Finally, in stress testing, the GPU fails to switch to 3D mode and remains at 2d clocks.