I just replaced my old integrated nVidia nForce 430 w/128MB with an nVidia 8400GS w/512MB that I thought didn't work but it does

I turned my in game IL2 settings up to max and it's smooth as butter, anyone else out there with an 8400GS wish to share their thoughts/settings for IL2???
Rig Specs are:
AMD 2.5 Ghz Dual Core
3 GB DDR2
8400GS 512MB