M2N-E and Kingston DDR2 RAM 667 - benchmark low?! Please help!

I have just recently purchased the M2N-E with A2M 3800+ ( after seeing
this thread, unfortunately).
Now, much to my dismay, my 2 gigs DDR2 Kingston RAM 667 is not being
utilized to it s fullest extent. I ran some NLE software on two
computers, an intel 3.0 D and this system and it renders almost 1.5X
slower on the AMD system. All my other benchmark tests are high, it is
just the memory that is low and makes me want to throw the thing out
the window. What can I do?
I just finished flashing the Bios to the newest version, didn't help
and in some respects, my memory benchmarks are lower. Any fixes for
this?