ha .. respondendo minha própria pergunta. Encontrei um documento link
Basicamente, temos todas as opções de gerenciamento de energia ou "verde" desabilitadas para manter todos os usuários mais ativos para aplicativos de negociação. Descobrimos que temos que definir "Power Regular for ProLiant" para "OS Control Mode".
Quando isso estiver definido, poderemos carregar o módulo e manipular o freq da CPU com utilitários do RPM do cpower.
Por exemplo:
# cpupower frequency-info
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.20 GHz - 2.90 GHz
available frequency steps: 2.90 GHz, 2.90 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.20 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz, 1.60 GHz, 1.40 GHz, 1.30 GHz, 1.20 GHz
available cpufreq governors: conservative, userspace, powersave, ondemand, performance
current policy: frequency should be within 1.20 GHz and 2.90 GHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 2.90 GHz (asserted by call to hardware).
boost state support:
Supported: yes
Active: yes
3400 MHz max turbo 4 active cores
3600 MHz max turbo 3 active cores
3600 MHz max turbo 2 active cores
3800 MHz max turbo 1 active cores