International Computer Hardware User Manual

CX-MB-EVA2 User's Manual Hardware
39
4.18.4 Fan interface
Two PWM controlled fan interfaces are integrated on the base board. They are located
near the COM Express modul.
Measurement of the tacho signal and control of the rotation speed is done by the
SuperIO.
Specification:
 References: X42 - X43
 Connector: Molex 22-04-1031
Pinout: Refer to Table 27
Pin Signal name Function
1 GND Ground
2 PWM PWM signal
3 TACHO Tacho signal
Table 27 Pinout Fan Interface
4.18.5 Intel Fan interface
A PWM controlled intel fan interface is shared with X43. Don't use both at the same time.
Measurement of the tacho signal and control of the rotation speed is done by the
SuperIO.
Specification:
 References: X48
 Connector: Molex 47053-1000
 Pinout: Refer to Table 23
Pin Signal name Function
1 GND Ground
2 +12V VCC
3 TACHO Tacho signal
4 PWM PWM signal
Table 28 Pinout Fan Interface
4.18.6 SuperIO Hardware Monitor
You can check different voltages and temperatures using the hardware monitor that is
integrated in the SuperIO.
Monitored voltages
 VBAT
 3.3V
 12V