Acnodes FES 8730 - Manual (Page 45)

 ACPI Settings
You can use this screen to select options for the ACPI configuration, and change the
value of the selected option. A description of the selected item appears on the right side
of the screen.
ACPI Sleep State
Allow you to select the Advanced Configuration and Power Interface (ACPI) sleep state.
Here are the options for your selection; Suspend Disabled, S1 (CPU Stop Clock) and S3
(Suspend to RAM). The S3 (Suspend to RAM) option selects the highest ACPI sleep
state the system will enter when SUSPEND button is pressed.