DansDebian Saving energy in Linux (power management of hard drive, monitor, and CPU using ACPI or APM) Saving energy in Linux (power management of hard drive, monitor, and CPU using ACPI or APM). administration-hdd-centos centos-check-power-saving-options centos-energy-management centos-energy-powersaving centos-energy-saving centos-hard-drive-power-saving debian-6-acpi-hdd debian-sqeeze-power-saving hdd-power-save-linux hdd-power-saving-linux linux-acpi-hard-drives linux-energy-saving linux-hdd-power-saving linux-power-manager