Acer LX.PWJ02.001, Service Manual, Page: 28 / 210

18 Chapter 1
System Power Management
Power and Keyboard Controller
Hard Disk Drive Interface
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.
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.
Item Specification
Vendor/model name Seagate HGST Toshiba Western
Digital Samsung
Capacity (MB) 160, 250,
320, 500 160, 250,
320, 500 160, 250,
320, 500 160, 250,
320, 500,
640 160, 250,
320
Bytes per sector 512
Data heads 2-4
Drive Format
Disks 1-2
Spindle speed
(RPM) 5400
Performance Specifications
Buffer size 8 MB
Interface SATA
DC Power Requirements
Voltage tolerance 5V ±5%