Intel Desktop Board D945PWM Technical Product Specification
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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
Condition
Off
LAN link is not established.
On
LAN link is established.
Green
Blinking
LAN activity is occurring.
Off
10 Mbits/sec data rate is selected.
Yellow
On
100 Mbits/sec data rate is selected.
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
Refer to
The location of the fan connectors and sensors for thermal monitoring
Figure 12, page 33
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.
