Asrock A75 Pro4 用户手册

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This allows you to set the CPU fan 1 & 2 speed. Con   guration options: [Full 
On] and [Automatic Mode]. The default is value [Full On].

This allows you to set the chassis fan 1 speed. Con   guration options: [Full 
On], [Manual Mode] and [Automatic Mode]. The default is value [Full On].

This allows you to set the chassis fan 2 speed. Con   guration options: [Full 
On] and [Manual Mode]. The default is value [Full On].

This allows you to set the chassis fan 3 speed. Con   guration options: [Full 
On] and [Manual Mode]. The default is value [Full On].

3.5  Hardware Health Event Monitoring Screen

In this section, it allows you to monitor the status of the hardware on your system, 
including the parameters of the CPU temperature, motherboard temperature, CPU 
fan speed, chassis fan speed, and the critical voltage.