System Power Management

ACPI mode

Power Management

Mech. Off (G3)

All devices in the system are turned off completely

Soft Off (G2/S5)

OS initiated shutdown. All devices in the system are turned off completely

Working (G0/S0)

Individual devices such as the CPU and hard disc may be power managed in this state

Suspend to RAM (S3)

CPU set power down VGA Suspend PCMCIA Suspend Audio Power Down Hard Disk Power Down CD-ROM Power Down Super I/O Low Power mode

Save to Disk (S4)

Also called Hibernation Mode. System saves all system states and data onto the disc prior to power off the whole system

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