Hi, I'm here again. Yesterday I have read and read and I have found that if I stop powernowd deamon and #echo 800000 >/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed My CPU go to 800Mhz and stopped it to 800Mhz. If i start powernowd deamon the cpu go immediately to 2000Mhz and never under this value. I think that is a problem with configuration of powernowd deamon. Any help ? Any more info to give to you ? tnx tnx