Being “Green” is being helpful towards the environment, but also to your electricity bills… The most commonly used techniques to reduce the power usage of a computer device are :
- Turning off your monitor/screen/tv when not used.
- Turning off the hard disks when they aren’t used
- CPU Frequency Scaling
For the last bit, you’ll have to check if you motherboard/cpu supports this… Most will probably support this, apart from the “really” old. The motherboard (& CPU) of my HTPC (MythTV) is capable of using AMD’s Cool’n’Quiet. I followed the following guide on the Ubuntu Forum, and used the “powersave” algorithm. It reduced my CPU frequency to 1000, where I must admit that I don’t notice anything on my combined MythTV frontend/backend. Next up is measuring the actual power usage, but I need to obtain a measuring device for that… 😉