Intel AIMB-253 Benutzerhandbuch

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Chapter 2  Hardware Setup
2.6.6
Fan Power Connectors: CPUFAN1, SYSFAN1
The fan power connectors support system cooling fan with +12V. When 
connecting the wire to the connectors, always take note that the red wire 
is the positive and should be connected to the +12V, the black wire is 
Ground and should be connected to GND. If the mainboard has a System 
Hardware Monitor chipset on-board, you must use a specially designed 
fan with speed sensor to take advantage of the CPU fan control.
Figure 2.9: Fan Power Connectors: CPUFAN1, SYSFAN1
Note
Please refer to the recommended CPU fans at Intel® / AMD®  
official website or consult the vendors for proper CPU cooling 
fan.
CPUFAN1
SENSOR
+12V
GND
SYSFAN1
SENSOR
+12V
GND