Neverwinter Nights SLI woes solved!

[adamr]

This is for those that have SLI and are struggling getting NWN2 to run ok ...

I have read countless threads and none of them helped

Download an application called Nhancer

(Using 93.71 official drivers, have not tried the tweakG driver with this)
1. Use Nhancer to open up the NeverWinter nights 2 profile
2. Delete the profile (yes remove the profile)
3. Create a new profile with the name of the one you just deleted
4. Now add three executable to your profile, namely nwn2.exe, nwn2main.exe, and nwn2main_amdxp.exe
5. Now under the SLI tabs choose AFR1 AND choose the compatibility flag check box 22
6. Force Vsync off in the profile, also force Vsync off in the global profile

I went from maxed out everything 13fps to 35fps in one specific scene , under heavy fight scenes nothing under 20fps (it would drop to a crippling 5fps!)

 

[Xarog]

Told you it was an SLI issue...

Edit : SLI is still very buggy, people. Not all games implement it well and the drivers are still very new relatively speaking. It's going to take a year or two before the kinks start coming undone. If you're running SLI and you're getting mysteriously horrible framerates, it's 10 to 1 the fact that you're running the game through SLI that's the cause of it.