Product Description
25
1.9
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:
•
Chassis intrusion detection
•
Fan monitoring and control (through the ITE 8718F/GX I/O Controller)
•
Thermal and voltage monitoring
1.9.1
Hardware Monitoring and Fan Control
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 both 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 headers and sensors for thermal monitoring
Figure 5, page 26
1.9.2
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.
1.9.3
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 1.10.2.2, page 30