How add cpu frequency that should be available?
- by Andrew Redd
I have a system with an Intel Core i7 970 that should be able to run at 3.2 GHz. I'm running ubuntu 12.04 and installed the cpufreq indicator to be able to change the governor and noticed that I only had frequencies up to 2.0 GHz available to me. I set to performance and checked with cpufreq-info
cpufreq-info -c 0
cpufrequtils 007: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to [email protected], please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1 2 3 4 5 6 7 8 9 10 11
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 2.00 GHz
available frequency steps: 2.00 GHz, 1.86 GHz, 1.73 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 1.60 GHz and 2.00 GHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 2.00 GHz (asserted by call to hardware).
cpufreq stats: 2.00 GHz:4.93%, 1.86 GHz:0.03%, 1.73 GHz:0.02%, 1.60 GHz:95.02% (718654)
And to double check:
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
1995000 1862000 1729000 1596000
How do I get all the frequencies that I should have available to me, all up to the 3.2 GHz?
