Acer Extensa 5220, Service Manual

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38 Chapter 1
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.
System Power Management
ACPI mode Power Management
SG_Columbia.book Page 38 Thursday, April 19, 2007 10:49 AM