|Wake on Lan = the mboard boots when it receives a suitable signal from a network adapter than is external to the computer, such as via a network cable connected to a institutional or business network.|
Wake on Lan is an ACPI function of the mboard, not a cpu function.
(ACPI - Advanced Control Power Interface)
The main chipset drivers must have been installed in the operating system in order for Windows to have the proper info about how the mboard / main chipset supports ACPI features, including Wake on Lan, Standby, Hibernate, etc..
If there is a setting in the bios Setup to enable / disable ACPI, or APM, it must be enabled - it is enabled by default.
(APM - Advanced Power Management)
The Wake on Lan feature in the bios Setup is usually disabled by default and you must enable it.
Older mboards / network adapters on cards in slots may require that you connect a Wake on Lan cable from a connector on the card to a connector for that on the mboard.