Great guide but when using a curve gpu clock, memory and voltage doesn't downclock in Windows when idling. :-(
Idling in Windows work for me when using default clockspeed or when overclocking using the sliders only.
Not sure if this may have something to do with my 1440p 165Hz Agon AG271QG monitor?
Edit: Oh, opening the curve and hitting ctrl+l may help? I am not at home right now but will try this later. :-D