As my thread name states my problem is that my crossfire 6950 does not work in all games.
In the begging my crossfire was not working at all and then I disabled ULPS through my registry. ULPS wasn't letting my second
card to withdraw power.
At Battlefield 3 both cards have activity of 60-80% and frame rate per second around 80 on medium graphics.
At Assassin's Greed III only my main card is working around 95% and the second sometimes uses 1 or 2% and then again 0%.