Compal Notebook - Storage Devices and Batteries

On board LAN (Only in AC mode)
RTC Alarm(Only in AC mode)
Power Button
On board LAN (Only in AC mode)
S5
RTC Alarm(Only in AC mode)
S0
Press Lid switch / Sleep Button (Fn+F2) /
Power Button
(depends on ACPI OS setting)
User selects the Standby Option in the
Windows Shut Down menu
ACPI OS timer expired
S0
Critical /Low battery (depends on ACPI OS
setting)
S3
Press Lid switch/ Sleep Button (Fn+F2) /
Power Button
(depends on ACPI OS setting)
User selects the Hibernate Option in the
Windows Shut Down menu
S0
Critical /Low battery (depends on ACPI OS
setting)
S4
Press Lid switch / Power Button (depends on
ACPI OS setting)
The Power Button is pressed for 4 seconds
(Power Button Override)
User selects the Shut down Option in the
Windows Shut Down menu
Critical /Low battery (depends on ACPI OS
setting)
S0
Thermal critical shutdown performed by EC
firmware
S5
Note1: The backlight of LCD should be off when WOL from S3 as it is remote wake up.
Note2: the S3S4 transition results in the system transitioning to the S0 state first so OS can
save the context to the hard disk. The system BIOS/KBC will not be involved for S3 S4
transition. The system power scheme will wake the machine from S3 and then transition to S4
Hibernation. The backlight of LCD is off during this transition.
4.7.5 Storage Devices and Batteries