IEI Integration NANO-9452 v1.00 - Manual (Page 140)

NANO-9452 EPIC Motherboard
Page 122
6.3.5 ACPI Configuration
The ACPI Configuration menu (BIOS Menu 8) configures the Advanced Configuration
and Power Interface (ACPI) and Power Management (APM) options.
BIOS Menu 8: ACPI Configuration
ACPI Aware O/S [Yes]
Use the ACPI Aware O/S option to enable the system to configure ACPI power saving
options. ACPI can only be implemented if the system OS complies with the ACPI
standard. Windows 98, Windows 2000, and Windows XP all comply with ACPI.
No Disables the ACPI support for the OS. This selection should
be disabled if the OS does not support ACPI