Intel D845HV Product Specification - Page 42

Fan Connectors, 14.2.3, LAN Wake Capabilities, CAUTION

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Intel Desktop Board D845HV/D845WN Technical Product Specification 1.14.2.2 Fan Connectors Table 11 summarizes the function/operation of the fan connectors. Table 11. Fan Connector Function/Operation Connector Description Processor fan Front chassis fan (optional) • +12 V DC connection for a processor fan or active fan heatsink. • Fan is on in the S0 or S1 state. Fan is off when the system is off or in the S3, S4, or S5 state. • Wired to a fan tachometer input of the SMSC LPC47M142 I/O controller. • +12 V DC connection for a system or chassis fan. • Fan is on in the S0 or S1 state. Fan is off when the system is off or in the S3, S4, or S5 state. Rear chassis fan • +12 V DC connection for a system or chassis fan. • Fan is on in the S0 or S1 state. Fan is off when the system is off or in the S3, S4, or S5 state. • Wired to a fan tachometer input of the SMSC LPC47M142 I/O controller. For information about The location of the fan connectors The signal names of the fan connectors Refer to Figure 12, page 58 Section 2.8.2.2, page 56 1.14.2.3 LAN Wake Capabilities CAUTION For LAN wake capabilities, 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 LAN wake capabilities can damage the power supply. Refer to Section 2.11.3 on page 79 for additional information. LAN wake capabilities enable remote wake-up of the computer through a network. The LAN subsystem PCI bus network adapter monitors network traffic at the Media Independent Interface. Upon detecting a Magic Packet† frame, the LAN subsystem asserts a wake-up signal that powers up the computer. Depending on the LAN implementation, the D845HV and D845WN boards support LAN wake capabilities with ACPI in the following ways: • the PCI bus PME# signal for PCI 2.2 compliant LAN designs • the onboard LAN subsystem • a CNR-based LAN subsystem 42

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Intel Desktop Board D845HV/D845WN Technical Product Specification
42
1.14.2.2
Fan Connectors
Table 11 summarizes the function/operation of the fan connectors.
Table 11.
Fan Connector Function/Operation
Connector
Description
Processor fan
•
+12 V DC connection for a processor fan or active fan heatsink.
•
Fan is on in the S0 or S1 state.
Fan is off when the system is off or in the S3, S4, or S5 state.
•
Wired to a fan tachometer input of the SMSC LPC47M142 I/O controller.
Front chassis fan
(optional)
•
+12 V DC connection for a system or chassis fan.
•
Fan is on in the S0 or S1 state.
Fan is off when the system is off or in the S3, S4, or S5 state.
Rear chassis fan
•
+12 V DC connection for a system or chassis fan.
•
Fan is on in the S0 or S1 state.
Fan is off when the system is off or in the S3, S4, or S5 state.
•
Wired to a fan tachometer input of the SMSC LPC47M142 I/O controller.
For information about
Refer to
The location of the fan connectors
Figure 12, page 58
The signal names of the fan connectors
Section 2.8.2.2, page 56
1.14.2.3
LAN Wake Capabilities
CAUTION
For LAN wake capabilities, 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
LAN wake capabilities can damage the power supply.
Refer to Section 2.11.3 on page 79 for
additional information.
LAN wake capabilities enable remote wake-up of the computer through a network.
The LAN
subsystem PCI bus network adapter monitors network traffic at the Media Independent Interface.
Upon detecting a Magic Packet
†
frame, the LAN subsystem asserts a wake-up signal that powers
up the computer.
Depending on the LAN implementation, the D845HV and D845WN boards
support LAN wake capabilities with ACPI in the following ways:
•
the PCI bus PME# signal for PCI 2.2 compliant LAN designs
•
the onboard LAN subsystem
•
a CNR-based LAN subsystem