Hardware Management Subsystem; Hardware Monitoring And Fan Control Asic; Chassis Intrusion And Detection; Lan Connector Led States - Intel D945PWM Technical Product Specification

Intel Desktop Board D945PWM Technical Product Specification
Table 4 describes the LED states when the board is powered up and the 10/100 Mbits/sec LAN
subsystem is operating.
Table 4.

LAN Connector LED States

LED Color LED State
Green Off
On
Blinking
Yellow Off
On

1.11 Hardware Management Subsystem

The hardware management features enable the board to be compatible with the Wired for
Management (WfM) specification. The board has several hardware management features,
including the following:
•
Chassis intrusion detection
•
Fan monitoring and control (through the hardware monitoring and fan control ASIC)
•
Thermal and voltage monitoring

1.11.1 Hardware Monitoring and Fan Control ASIC

The features of the hardware monitoring and fan control ASIC include:
•
Internal ambient temperature sensor
•
Two remote thermal diode sensors for direct monitoring of processor temperature and ambient
temperature sensing
•
Power supply monitoring of five voltages (+5 V, +12 V, +3.3 VSB, +1.5 V, and +VCCP) to
detect levels above or below acceptable values
•
Thermally monitored closed-loop fan control, for all three fans, that can adjust the fan speed or
switch the fans on or off as needed
•
SMBus interface
For information about
The location of the fan connectors and sensors for thermal monitoring

1.11.2 Chassis Intrusion and Detection

The board supports a chassis security feature that detects if the chassis cover is removed. The
security feature uses a mechanical switch on the chassis that attaches to the chassis intrusion
connector. When the chassis cover is removed, the mechanical switch is in the closed position.
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Condition
LAN link is not established.
LAN link is established.
LAN activity is occurring.
10 Mbits/sec data rate is selected.
100 Mbits/sec data rate is selected.
Refer to
Figure 12, page 33