Intel D925XBC, D925XCV Hardware Management Subsystem, Hardware Monitoring and Fan Control ASIC

Product Description

1.13 Hardware Management Subsystem

The hardware management features enable the Desktop Boards to be compatible with the Wired for Management (WfM) specification. The Desktop Board has several hardware management features, including the following:

•Fan monitoring and control (through the hardware monitoring and fan control ASIC)

•Thermal and voltage monitoring

•Chassis intrusion detection

1.13.1Hardware 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 for	Figure 15, page 38
the D925XCV board
The location of the fan connectors and sensors for thermal monitoring for	Figure 16, page 39
the D925XBC board

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