Sorry, but my CPU in EVERY game I own is at 100% ALL THE TIME.
I game at 1600x1200, X1900XTX.
Therefore its using all the CPU.
Even if it isn't using all the CPU, at some points it WILL, and you have the power there.
The suggestion that "Conroe above 3.6Ghz is USELESS for games on current tech" is on the most part, ****.
If there was no benefit, we wouldn't overclock to the limits, just enough to get max performance, but we don't we get as much as possible.
BF2 is some cases its CPU limited, 64 players, big map, lots of vehicles, physics etc, then you are CPU limited...