Thats a valid point. I agree. *** To permanent change max cpu freq *** Update the file /etc/pmconfig scaling_max_freq 600000 to scaling_max_freq 900000 or whatever mhz you prefer or dare to try. Information in this file is the source and sets the /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq when booting the device (same off course for the min_freq).