Power management

This article describes methods to save energy for longer battery runtime, more quiet computer, lower power bills, and environmentally friendly impact.

Device-specific power management sub-articles can be found below in the Devices section.

BIOS
Disable unused devices right in the BIOS or EFI firmware. Potential devices to disable include:


 * Serial ports
 * Parallel ports
 * Ethernet network devices
 * Wireless network devices
 * Bluetooth controllers

Devices
Devices which can save energy during runtime:


 * Processor
 * Display
 * HDD
 * CDROM
 * Graphics Adapters
 * Ethernet
 * Wifi
 * Bluetooth
 * Soundcard
 * Bus
 * Hibernation

Multi- devices/subsystems power management:


 * Hprofile