ACPI Configuration Specification

The tables below describe (per server module type) the ACPI Configuration items you can configure from the Advanced BIOS Setup Utility menu.

X8400, X8420, X8440 ACPI Configuration Items

The following table describes the ACPI configuration menu items available for the X8400, X8420, and X8440 Server Modules.

ACPI Configuration Item

Description

ACPI Version Features

This configuration item can be either enabled or disabled. If enabled, the RSDP points to 64-bit Fixed System Description Tables.

Default ACPI Version = 3.0

ACPI APIC Support

This configuration item can be either enabled or disabled. If it is enabled, BIOS includes an ACPI APIC Table pointer to the RSDT Pointer List.

*ACPI Static Resource Affinity Table (SRAT)

This option applies to X8400, X8420, and X8440 Server Module.

The Static Resource Affinity Table (SRAT), referenced during boot time, contains topology information about the local system's processors and memory ranges. The SRAT configuration item can be either enabled or disabled. If it is enabled, the SRAT is built; if it disabled, SRAT is not built.

Headless Mode

This configuration item is used to enable or disable the headless operation mode through ACPI. On systems without a video display device, enable this parameter to send output through the serial port.

MCFG Table

Enable this parameter to build the ACPI MCFG table used for memory mapping purposes. If this parameter is not enabled, the table is not built.

X8450 ACPI Configuration Items

The following table describes the ACPI configuration menu items available for the X8450 Server Module.

ACPI Configuration Item

Description

ACPI Version Features

This configuration item allows you to select ACPI v1.0, v2.0, or v3.0. If enabled, the RSDP points to 64-bit Fixed System Description Tables.

Default ACPI Verison = 3.0

ACPI APIC Support

This configuration item can be either enabled or disabled. If it is enabled, BIOS includes an ACPI APIC Table pointer to the RSDT Pointer List.

AMI OEMB Table

This configuration is used to add a pointer to an OEMB table to the RSDT Pointer List.

Headless Mode

This configuration item is used to enable or disable the headless operation mode through ACPI. On systems without a video display device, enable this parameter to send output through the serial port.

Related Topics