# modprobe powernow-k8↓
# apt-get install powernowd
# apt-get install cpufrequtils
/etc/modules に powernow-k8 追加
# cpufreq-info
cpufrequtils 002: cpufreq-info (C) Dominik Brodowski 2004-2006
Report errors and bugs to linux@brodo.de, please.
analyzing CPU 0:
driver: powernow-k8
CPUs which need to switch frequency at the same time: 0 1
hardware limits: 1000 MHz - 2.50 GHz
available frequency steps: 2.50 GHz, 2.40 GHz, 2.20 GHz, 2.00 GHz, 1.80 GHz, 1000 MHz
available cpufreq governors: userspace, performance
current policy: frequency should be within 1000 MHz and 2.50 GHz.
The governor "userspace" may decide which speed to use
within this range.
current CPU frequency is 1000 MHz (asserted by call to hardware).
analyzing CPU 1:
driver: powernow-k8
CPUs which need to switch frequency at the same time: 0 1
hardware limits: 1000 MHz - 2.50 GHz
available frequency steps: 2.50 GHz, 2.40 GHz, 2.20 GHz, 2.00 GHz, 1.80 GHz, 1000 MHz
available cpufreq governors: userspace, performance
current policy: frequency should be within 1000 MHz and 2.50 GHz.
The governor "userspace" may decide which speed to use
within this range.
current CPU frequency is 1000 MHz (asserted by call to hardware).
Pentium4からHDDを載せ変えてOS入れ直すことなく省電力機能まで有効化できてしまった。入れ直すの面倒くさいからもうこのまま使っちゃうよ! ちなみに消費電力はidle 34W程度になりました。下の記事と大体同じくらいなので負荷時は80W程度かな? idleだけでみた場合53Wの削減で月38.16kWhになり、電気代にすると940円程度。千円には届かなかった。
・【詳細版】Atom 230とCeleron、Core 2、Athlon X2を比較:ニュース


