Intel DG33BU Hardware Management Subsystem, Hardware Monitoring and Fan Control, Fan Monitoring

Intel Desktop Board DG33BU Technical Product Specification

1.12 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:

•Fan monitoring and control

•Thermal and voltage monitoring

•Chassis intrusion detection

1.12.1Hardware Monitoring and Fan Control

The features of the hardware monitoring and fan control include:

•Intel Quiet System Technology, delivering acoustically-optimized thermal management

•Fan speed control controllers and sensors integrated into the ICH9DH

•Four thermal sensors (processor, 82G33 GMCH, 82801IH ICH9DH, and a remote thermal sensor)

•Power supply monitoring of five voltages (+5 V, +12 V, +3.3 VSB, +1.25 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

1.12.2Fan Monitoring

Fan monitoring can be implemented using Intel® Desktop Utilities or third-party software.

For information about	Refer to
The functions of the fan headers	Section 1.13.2.2, page 34
Location of the fan headers	Figure 6, page 29

1.12.3Chassis 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 header. When the chassis cover is removed, the mechanical switch is in the closed position.

For information about	Refer to
The location of the chassis intrusion header	Figure 10, page 42

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