Datasheet

Product Description

1.11.2 Hardware Support

The board provides several power management hardware features, including:

• Fan header

• LAN wake capabilities

• Instantly Available PC technology

• Wake from USB

• PME# signal wake-up support

• Wake from PS/2 devices

• WAKE# signal wake-up support

• +5V Standby Power Indicator LED

LAN wake capabilities and Instantly Available PC technology require power from the

+5 V standby line.

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NOTE

The use of Wake from USB technologies from an ACPI state requires an operating

system that provides full ACPI support.

1.11.2.1 Fan Header

The function/operation of the fan header is as follows:

• The fan is on when the board is in the S0 state.

• The fan is off when the board is off or in the S3, S4, or S5 state.

• The chassis fan header supports closed-loop fan control that can adjust the fan

speed and is wired to a fan tachometer input.

• The fan header has a +12 VDC connection.

For information about Refer to

The locations of the fan header and thermal sensors Figure 1-4, page 25

The signal names of the chassis fan header Table 15, page 42

1.11.2.2 LAN Wake Capabilities

LAN wake capabilities enable remote wake-up of the computer through a network.

The LAN subsystem network adapter monitors network traffic at the Media

Independent Interface. The board supports LAN wake capabilities with ACPI in the

following ways:

• By Ping

• By Magic Packet

Upon detecting the configured wake packet type, the LAN subsystem asserts a wake-

up signal that powers up the computer.