Connecting Case Components

After you have installed the motherboard into a case, you can begin connecting themotherboard components. Refer to the following:

1.Connect the CPU cooling fan cable to CPUFAN1.

2.Connect the standard power supply connector to PWR2.

3.Connect the case switches and indicator LEDs to the LEDH1.

4.Connect the auxiliary case power supply connector to PWR1.

CPUFAN1: CPU Cooling Fan Power Connector

Pin

Signal Name

Function

 

 

 

1

GND

System ground

 

 

 

2

+12V

Power +12V

 

 

 

3

Sense

Sensor

 

 

 

4

PWM

PWM

 

 

 

Chapter 5

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Acer M3920 manual Connecting Case Components, CPUFAN1 CPU Cooling Fan Power Connector