Acpi Settings; It8528 Super Io Configuration - Avalue Technology APC-2138-B1 Quick Reference Manual

3.6.2.6 ACPI Settings

Item
Enable Hibernation
ACPI Sleep State

3.6.2.7 IT8528 Super IO Configuration

You can use this item to set up or change the IT8528 Super IO configuration for serial ports.
Please refer to 3.6.2.7.1 for more information.
Options
Disabled
Enabled[Default],
Suspend Disabled,
S3 (Suspend to RAM)[Default]
APC-2138-B1 Quick Reference Guide 41
Quick Reference Guide
Description
Enables or Disables System ability to
Hibernate (OS/S4 Sleep State). This
option may be not effective with some
OS.
Select the highest ACPI sleep state the
system will enter when the SUSPEDN
button is pressed.