ACPI Headless Mode
Common Options : Enabled, Disabled
This is a server-specific feature. A headless server is one that operates without a keyboard, monitor or mouse. To run in headless mode, both BIOS and operating system (e.g. Windows Server 2003) must support headless operation.
This BIOS feature determines if the BIOS should allow headless operation by updating the FACP (Fixed ACPI Description Table).
When enabled, the BIOS will update the FACP to indicate support for headless operation. Operating systems that support headless operation can proceed to boot in headless mode.
When disabled, the BIOS will not update the FACP to indicate support for headless operation. Even if it supports headless operation, the operating system will not boot up in headless mode.
If you intend to boot the server in headless mode, you should enable this BIOS feature. Otherwise, you can leave it disabled.
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