DG31GL Technical Product Specification

Product Description

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

1.11.1 Hardware Monitoring and Fan Control

The features of the hardware monitoring and fan control include:

• Fan speed control controllers and sensors integrated into the legacy I/O controller

• Remote thermal diode sensor for ambient temperature sensing

• Thermal sensors in the processor, 82G31 GMCH, and ICH7

• Power supply monitoring of three voltages (+5 V, +12 V, 3.3 V) to detect levels

above or below acceptable values

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

speed or switch the fans on or off as needed

1.11.2 Fan 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 1.12.2.2, page 33