Chapter 4: BIOS APCI Confi guration General APCI Confi guration Suspend Mode Select the mode used for the system suspend state. Options are S1 (POS), S3 (STR) and Auto . (POS=Power Off Standby, STR=Suspend to RAM.) Advanced ACPI Confi guration ACPI 2.0 Features "Yes" enables RSDP pointers to 64-bit fi xed system description pages. Op- tions are Yes and No . ACPI APIC Support Select "Enabled" to allow the ACPI APIC table pointer to be included in the RSDP pointer list. The options are Enabled and Disabled. AMI OEMB Table When Enabled, tells BIOS to include the OEMB table pointer to R(X) SDT pointer lists. Options are Enabled and Disabled. Headless Mode The options are Enabled and Disabled .
Enable this setting to activate the Headless Operation Mode through ACPI. 4-7