User manual

Page 107
PPC-5170GS Flat Panel PC
5.3.6.2 Advanced ACPI Configuration
Use the Advanced ACPI Configuration menu (BIOS Menu 11) to select the ACPI state
when the system is suspended.
BIOS Menu 11: Advanced ACPI Configuration
 ACPI 2.0 Features [No]
Use the ACPI 2.0 Features option to enable the ACPI (Advanced Configuration and Power
Interface) features. By enabling this feature the system RSDP (Root System Description
Pointer) is able to obtain physical addresses for other 64-bit fixed system description
tables.

No DEFAULT
RSDP pointers to 64-bit fixed systems are not provided to the
system

Yes
RSDP pointers to 64-bit fixed systems are provided to the
system