I would do this on a completely separate hard drive without touching your current install. This way you can be sure a clean install will solve your problem rather than wiping out what you have and getting everything all set up again, only to find out that you just wasted 3-4 hours reinstalling Windows and all your apps and games.
Edit: Just be sure not to activate this new install of 7 until you are sure that it will fix the problem.
thats a good idea i will try that
but do u think that it will solve the problem? does it make a difference installing it on a second patition instead of another physical clean drive? because i already installed it on the second partition on my current HD and both vista and 7 have extreme low fps
I meant what are the actual framerates you are getting in the games you play? How much lower they are in Vista and 7 compared to XP doesn't matter right now. You have already mentioned they are lower, and I'm trying to think of what could cause that. In the meantime, please try to capture your average framerates in a few games and let me know where they are at.
Call of Duty World at War - Vista/7 Drops to 40 fps- XP - Constant 90 capped
Left 4 Dead - Windows 7 / Vista - 39 fps - XP - 135 fps
Crysis - 20 fps
Unreal Engine 3 Games - Windows 7 UT3 goes down to 40 fps Batman Arkahm asylum 46 fps average XP 200 stable
this is the same thread from the only I replied to before. ( I was the one who replaced my board. Moved to AMD chipset cause I was so sick of these problems.)
Im telling you its the Nvidia drivers like everyone else says. Problem with XFX is their customer support sucks and you have to get legacy drivers from Nvidia. This really wont fix the issues beacuse there is still bugs cause they are old dirvers.
Also for the person running 3dmark03 remember that this is not an accurate benchmark for windows vista/7 the way these OS's operate is different. I would suggest DL 3dmark Vantage and comparing to others online.
I know this is shitty advice, but save yourself the trouble and get a nice 790FX AMD board and be done with it.