Intel Desktop Board DG41MJ Technical Product Specification

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:

• Fan monitoring and control

• Thermal and voltage monitoring

• Chassis intrusion detection

1.11.1 Hardware Monitoring and Fan Control

The features of the hardware monitoring and fan control include:

• The Legacy I/O Controller smart fan control, delivering acoustically-optimized

thermal management

• Fan speed control controllers and sensors integrated into the Legacy I/O Controller

• Four thermal sensors (processor, 82G41 GMCH, 82801GB ICH7, and a remote

thermal sensor)

• Power supply monitoring of five voltages (+12 V, +5 V, +3.3 V, +1.125 V, and

+VCCP) to detect levels above or below acceptable values

• Thermally monitored closed-loop fan control, for both fans, that can adjust the fan

speed according to thermal conditions

1.11.2 Fan Monitoring

Fan monitoring can be implemented using third-party software. The level of

monitoring and control is dependent on the I/O controller used with the board.

For information about Refer to

The functions of the fan headers Section 1.12.2.2, page 32

Location of the fan headers Figure 6, page 27

1.11.3 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 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 40