Acer 5551G, 5251 manual System Power Management Acpi mode Specification

System Power Management

ACPI mode					Specification
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 disk may be power
		managed in this state.
Sleeping State (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
Sleeping State (S4)		Also called Hibernate state. System Saves all system states and data
		onto disk prior to power off the whole system.
Power and Keyboard Controller
Item					Specification
Controller			ENE KB926
Total number of keypads			99-/100-/103-key keyboard
Windows logo key			Yes
Hotkeys			See “Hot Keys” on page 13.
Hard Disk Drive Interface
Item					Specification
Vendor/model name	Seagate			HGST	Toshiba	Western	Samsung
						Digital
Capacity (MB)	160, 250,			160, 250,	160, 250,	160, 250,	160, 250,
	320, 500			320, 500	320, 500	320, 500,	320
						640
Bytes per sector					512
Data heads					2-4
Drive Format
Disks					1-2
Spindle speed					5400
(RPM)
Performance Specifications
Buffer size					8 MB
Interface					SATA
DC Power Requirements
Voltage tolerance					5V ±5%

18 Chapter 1