Try 01, or Sandra. Even the cpu score in 03 will tell you something. Since your temps went up, I am pretty sure you didn't try to go to a higher multiplier. Good, cause that wont work. You set your FSB to 240 right? Is your memory running in sync? If so, your system will outperform a 3800 by a couple of %.
3D mark 05 is strictly a graphics benchmark. It wont show any change until you drop down to about an xp.