did you turn off AA/AF and turn down the driver settings to high performance...and if you dont have radlinker...download it...not the version that comes with the Omega drivers...then turn down DX and Open to the lowest settings...
Also, if you have anything running in your start up...disable them before running 3d marks...start, run, msconfig, start up...uncheck everything...reboot...let system load and sit for a few minutes...run 3d marks...
Also...defragging your HD and then rebooting is good for a few points...
One more thing...4.3 for DX 9...