Gainward 9800GTX & Windows 7 64 poor performance?

[onua444]

Hi all,

i have problem with my graphic card. I've installed Windows 7 64-bit and my performance in games drops extremly. First example is PES 2010 game. That game i was able to run on 1680x1050 on full details smothly... Now i cant get it on 1440x900 on high detail. Only on low I've reinstalled PhysX but nothing, I've downloaded new nvidia drivers, nothing... Any sugestions?

mobo: MSI P7N SLI Platinum
cpu: E8400
meme: 4GB DDR2 some transcend low budget
gpu: Gainward 9800GTX
psu: chieftec 450W

 

[dRaCID01]

did u reinstall ALL driver by yourself.. Motherboardchipset, Gfx Driver, sounddriver..
I have also a Win7 / 64Bit system ..but i have no troubles..