I've been getting bad scaling in a couple games lately (Fallout 3 and Far Cry 2). The SLI indicators are telling me that my cards spend a lot of times idling (and it costs me fps over single card mode) which is a sign of cpu bottlenecking. Vantage and Crysis show good scaling with the indicators though my CPU score is lower in Vantage than I think it should be (12 -13 000). I'm stumped. Most games are great some are costing me FPS in SLI though I see others seeing benefits.
I've been uninstalling, sweeping and reinstalling drivers. Looking everywhere for anwers and getting only other with similar problems but no resolution. I just can't think of what the problem could be.