CX-MB-EVA2 User's Manual

Hardware

 

 

4.18.4Fan 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

4.18.5Intel 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

4.18.6SuperIO 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

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MSC CX-MB-EVA2 user manual Intel Fan interface, SuperIO Hardware Monitor, Monitored voltages