Help with just-built system!

[kapoli]

I just got a 3500+ Winchester with 2GB of RAM and a eVGA 6800 Ultra. After running the demo1 in Doom 3 for the 2nd time, I only get 66.6 FPS at 1280x1024. A comparable system gets nearly 80 FPS. I also notice this in other games and 3D Mark 05, where my score is unsually low. What could be the problem. By the way I have OCZ Powerstream 520 so power isn't a problem.

 

[JSt0rm]

is vsync on?

 

[charlie21]

Make sure to update all your drivers as well. Chipset, video, everything.

 

[Rhin0]

what motherboard?

 

[CaMSpoon]

power effecting speed? Wow never heard that.
I own a Shuttle SN95G5 which only has 230-250.. so that means mine will run like crap?
I think u have a driver problem.