Gigabyte GA-6WOZ7, User Manual

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6WOZ7 Series Motherboard
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Appendix E: Introduce The Alert on LAN
The primary functions of the Alert on LAN *2 ASIC are to provide an interface to the 82559 and to the
system monitoring critical system parameters and conditions, such as supply voltage detected, cover
tamper, over temperature, link loss, and processor missing intrusion. If such a
condition is detected, the Alert on LAN ASIC *2 transmits this information to the 82559. In response, the
82559 transmits alert ("SOS") packets to the remote console.
The Alert on LAN *2 ASIC transmits periodic presence packets (heartbeat) to the remote console. It
support receiving specially filtered packets, in order to perform various Advanced Power Management
modes(such as power-up, power-down and reset), And we very expected these operations to be
available when software is unable to perform these functions (such as during a low power state or boot-up
or when the operating system becomes inoperable)but are not precluded from running in the working
state.