To improve the power efficiency of your PC, the Climate Savers Computing Initiative recommends the following power management settings:
- Monitor/display sleep: Turn off after 15 minutes or less
- Turn off hard drives/hard disk sleep: 15 minutes or less
- System standby/sleep: After 30 minutes or less
Also, even when the computer is turned off, it can consume energy. You can avoid this by using a power strip with a master switch that turns off all your hardware.