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Technical Reference Guide
Compaq Personal Computers
Original - December 2000
K-3
K.2.1 AOL FUNCTION
The adapter’s Alert-On-LAN (AOL) function provides a AOL-compliant system unit with the
ability to communicate system status to a management console, even while the system is powered
down. When installed in an AOL-compliant system, the adapter receives alert messages from the
system’s I/O Controller Hub (ICH) over the SMBus. Each alert message decoded by the adapter
results in a pre-constructed status message being transmitted over the network to a management
console. Alert-On-LAN functionality occurs independent of software, driver, or even processor
intervention. The adapter can report following conditions:
♦ System tampering – Removal of the chassis cover
♦ BIOS failure – System fails to boot successfully
♦ OS problem – System fails to load operating system after boot
♦ Missing/faulty processor – Processor fails to fetch first instruction
♦ Thermal condition – High temperature detected in system
♦ Heartbeat – Indication of system’s presence on the network (sent approximately every 30
seconds)
NOTE: The system unit must be plugged into a live AC outlet for the AOL function to be
operative. Controlling a system unit’s power through an AC outlet strip will, when
the strip is turned off, disable AOL functionality.
NOTE: Since AOL implements the SMBus, a cable connection from the SMBus
connector on the card to a corresponding SMBus connector on the system board may be
required. Compaq desktop system boards with AOL support inter-connect the SMBus
with the PCI bus and do not require a SMBus cable connection.
The AOL implementation requirements are as follows:
1. System unit featuring the 810, 810e, 820, or 850 (or later) chipset.
2.
Intel PRO/100+ Management Adapter Driver 3.1 or later (available from Compaq).
3.
Client-side utility agent software (available from Compaq).
4.
Management console running one of the following:
a.
HP OpenView Network Node Manager 6.x.
b. Intel LANDesk Client Manager.
c.
Compaq Insight Manager.