Intel DG33BU specifications Fan Headers, LAN Wake Capabilities

Intel Desktop Board DG33BU Technical Product Specification

1.13.2.2Fan Headers

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

•The fans are on when the board is in the S0 state.

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

•The processor fan header is wired to a fan tachometer input and the Front and Rear fan headers share the tachometer input of the hardware monitoring and fan control device. All fan headers support closed-loop fan control that can adjust the fan speed or switch the fan on or off as needed.

•All fan headers have a +12 V DC connection.

For information about	Refer to
The locations of the fan headers and thermal sensors	Figure 6, page 29
The signal names of the processor fan header	Table 15, page 44
The signal names of the chassis fan headers	Table 14, page 44

1.13.2.3LAN Wake Capabilities

CAUTION

For LAN wake capabilities, the +5 V standby line from 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.

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 board supports LAN wake capabilities with ACPI in the following ways:

•The PCI Express WAKE# signal

•The PCI bus PME# signal for PCI 2.3 compliant LAN designs

•The onboard LAN subsystem

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