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Vig390s Motherboard Manual V1.0
25
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
Hardware 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 voltages (+5 V, +12 V, +3.3 V, Vbat 3.3, Vcore1
and Vcore2) to detect levels above or below acceptable values
• Thermally monitored closed-loop fan control, for all fans, that can adjust the
fan speed as needed.
• SMBus interface
Thermal Monitoring
Table 8: Hardware Monitor Options
Item Description
A Thermal diode, located on processor die
B Remote ambient temperature sensor
C MB ambient temperature sensor
D Processor fan speed
E Rear chassis fan speed
F Front chassis fan speed