
Intel Desktop Board DG41MJ Technical Product Specification
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1.12.2.2
Fan 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. The front fan header
has independent tachometer input to the hardware monitoring and fan control
device. All fan headers support closed-loop fan control that can adjust the fan
speed according to thermal conditions.
•
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 27
The signal names of the processor fan header
Table 15, page 42
The signal names of the chassis fan header
Table 14, page 42
1.12.2.3
LAN Wake Capabilities
CAUTION
For LAN wake capabilities, the +5 V standby line from the power supply must be
capable of providing ad5 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. The board supports LAN wake
capabilities with ACPI in the following ways:
•
The Wake# signal for PCI Express compliant LAN designs
•
The onboard LAN subsystem