Unfortunatly it is avoided: BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso30+0m5) built-in shell (ash) Enter 'help' for a list of built-in commands. /home/user # kernel-config load underclock loading /usr/share/kernel-power-settings/underclock successfully loaded. /home/user # kernel-config show current kernel configuration: current frequency: 500 supported frequencies: 125 250 500 550 600 720 805 850 900 950 1000 1100 1150 min. frequency: 250 max. frequency: 500 avoid frequencies: 125 250 active frequencies: 500:38,360 550:38,400 600:45,430 720:48,430 805:54,500 850:54,520 900:54,600 950:54,600 1000:60,600 1100:72,600 1150:72,600 SmartReflex VDD1=1, VDD2=1 governor ondemand: ignore nice load= 1, up threshold= 95, sampling rate= 300000, powersave bias= 20 /home/user # The Same with the profile overclock. But there it is OK for me.