How to enable low-level overclocking in Riva Tuner?

[tehDeviLwithiN]

does anyone know how to enable low-level overclocking in the low level system tweaks? it's ghosted out.

Thanks

 

[tehDeviLwithiN]

OK I found my answer here

You will not be able to enable low-level overclocking on GeForce FX GPU family. Access to this
feature is purposely blocked to avoid interference with GeForce FX-specific dynamic driver-level
clock frequency adjustment.