Fan Connector Function/Operation For Desktop Boards With A Hardware; Monitoring And Fan Control Asic - Intel D845GEBV2 - OCTOBRE 2002 Manual

Table 18.

Fan Connector Function/Operation for Desktop Boards with a Hardware

Monitoring and Fan Control ASIC

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
1.14.2.3 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
up the computer. Depending on the LAN implementation, the Desktop Boards D845GEBV2 and
D845GERG2 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
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 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.
†
frame, the LAN subsystem asserts a wake-up signal that powers
Product Description
Refer to
Figure 13, page 62
Figure 10, on page 43
Section 2.8.2.2, page 62
49