System Power Management - Acer TravelMate 4150 Service Manual

System Power Management

The overall system can be in one of five system power states as described below:
Legacy
Mode
Mech. Off (G3)
Off
Soft Off (G2/S5)
Working (G0/S0)
S3 Sleeping State
On
S4 Sleepting State
Chapter 1
ACPI mode Power Management
All devices in the system are turned off completely.
OS initiated shutdown. All devices in the system are
turned off completely.
Individual devices such as the CPU and hard disk
may be power managed in this state.
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
Also called Hibernate state. System Saves all
system states and data onto disk prior to power off
the whole system.
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