User`s manual

OPS860-HM Users Manual
AMI BIOS Setup Utility
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) state to be used for system suspend. Here
are the options for your selection, S1 (CPU Stop Clock), S3
(Suspend to RAM) and Suspend Disable.