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1.13.2.2
Fan Connectors
The board has two fan connectors. The functions of these connectors are described in Table 12.
Table 12.
Fan Connector Descriptions
Connector
Processor fan (fan 1)
Chassis fan (fan 2)
NOTE
The on/off control for fan 2 is only available with the hardware monitor option.
1.13.2.3
Wake on LAN Technology (Optional)
CAUTION
For Wake on LAN technology, the 5 V standby line for the power supply must be capable of
providing adequate +5 V standby current. Failure to provide adequate standby current when
implementing Wake on LAN technology can damage the power supply. Refer to Section 2.11.3 on
page 71 for additional information.
Wake on LAN technology enables remote wakeup of the computer through a network. The LAN
subsystem, whether onboard or as a PCI bus network adapter, monitors network traffic at the
Media Independent Interface. Upon detecting a Magic Packet
a wakeup signal that powers up the computer. Depending on the LAN implementation, the board
supports Wake on LAN technology in the following ways:
Through the Wake on LAN technology connector
Through the PCI bus PME# signal (for PCI 2.2 compliant LAN designs)
Through the onboard LAN subsystem when enabled in Setup (ACPI only)
The Wake on LAN technology connector can be used with PCI bus network adapters that have a
remote wake up connector, as shown in Figure 6. Network adapters that are PCI 2.2 compliant
assert the wakeup signal through the PCI bus signal PME# (pin A19 on the PCI bus connectors).
The optional onboard LAN subsystem also supports remote wakeup using the PME# signal.
Network
Interface
Card
Function
Provides +12 V DC for a processor fan or active fan heatsink.
Provides +12 V DC for a system or chassis fan. The fan voltage can be
switched on or off, depending on the power management state of the
computer.
Remote
Wake up
connector
PCI Slot
Desktop Board
Figure 6. Using the Wake on LAN Technology Connector
Desktop Board Description
†
frame, the LAN subsystem asserts
Wake on
LAN
technology
connector
OM09129
39
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