Fan Connector Function/Operation - Intel D848PMB Specification

1.12.2.2 Fan Connectors
Table 11 summarizes the function/operation of the fan connectors.
Table 11.

Fan Connector Function/Operation

Connector
Processor fan
Front chassis fan
Rear chassis fan
For information about
The location of the fan connectors
The location of the fan connectors and sensors for thermal monitoring
The signal names of the fan connectors
1.12.2.3 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 Desktop Board D848PMB supports
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
Description
• +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 hardware monitoring and fan control ASIC.
• Closed-loop fan control (optional) that can adjust the fan speed or switch the fans
on or off as needed.
• +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 hardware monitoring and fan control ASIC.
• Closed-loop fan control that can adjust the fan speed or switch the fans on or off
as needed.
• +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 hardware monitoring and fan control ASIC.
• Closed-loop fan control that can adjust the fan speed or switch the fans on or off
as needed.
Product Description
Refer to
Figure 11, page 53
Figure 8, on page 34
Section 2.8.2.2, page 53
39