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DX58SO Datasheet(PDF) 33 Page - Intel Corporation |
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DX58SO Datasheet(HTML) 33 Page - Intel Corporation |
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33 / 88 page ![]() Product Description 33 1.13.2.2 Fan Headers The function/operation of the fan headers is as follows: • The fans are on when the board is in the S0 or S1 state. • The fans are off when the board is off or in the S3, S4, or S5 state. • Each fan header is wired to a fan tachometer input of the hardware monitoring and fan control ASIC, except the fan header located at J7TH (item R on Figure 1, page 11) • 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 • 4-pin fan headers are controlled by Pulse Width Modulation • 3-pin fan headers (front and rear) are modulated by voltage control For information about Refer to The location of the fan headers Figure 11, page 43 The location of the fan headers and sensors for thermal monitoring Figure 6, page 27 The signal names of the fan headers Section 0, page 42 1.13.2.3 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. 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 ⎯ By Ping ⎯ Magic Packet • The onboard LAN subsystem • Wake from CIR |
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