Product Description
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1.13 Hardware Management Subsystem
The hardware management features enable the boards to be compatible with the Wired for
Management (WfM) specification. The board has several hardware management features,
including the following:
• Fan control and monitoring
• Thermal and voltage monitoring
For information about Refer to
The WfM specification Section 1.5, page 19
1.13.1 Hardware Monitor Component
The hardware monitor component provides low-cost instrumentation capabilities. The features of
the component include:
• Internal ambient temperature sensing
• Remote thermal diode sensing for direct monitoring of processor temperature
• Power supply monitoring (+5 V, +3.3 V, +2.5 V, 3.3 VSB, and Vccp) to detect levels above or
below acceptable values
• SMBus interface
1.13.2 Fan Control and Monitoring
The I/O controller provides two fan tachometer inputs. Monitoring and control can be
implemented using third-party software.
For information about Refer to
The functions of the fan connectors Section 1.14.2.2, page 43
The location of the fan connectors Figure 14, page 60
The signal names of the fan connectors Section 2.8.2.3, page 60
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