GTX 660 Performance Level 0

hi,

I am on fedora 25 kernel 4.9.6-200 and nvidia dreivers 375.26

In PowerMizer tab of nvidia-settings my card is locked on Performance level 0 in all mods (auto, adaptive, prefer maximum performance)

I have added in xorg.conf these options

Option “RegistryDwords” “PowerMizerEnable=0x1; PerfLevelSrc=0x2222; PowerMizerDefault=0x1; PowerMizerDefaultAC=0x1”

how to set it on level 3 ?

now I have lost fps in games and video are not good played :-(

https://www.noelshack.com/2017-06-1486397423-capture-d-ecran-de-2017-02-06-17-06-35.png