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2.1-3 Fan Power Connectors: CPUFAN & SYSFAN
These connector support system cooling fan with + 12V. It supports three
pin head connector. When connecting the wire to the connector, 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 your
mainboard has System Hardware Monitor chipset on-board, you must use a
specially designed fan with speed sensor to take advantage of this function.
SENSOR
+12V
GND
SYSFAN
For fans with fan speed sensor, every rotation of the fan will send out 2
pulses. System Hardware Monitor will count and report the fan rotation
speed.
CPUFAN: Processor Fan
SYSFAN: System Fan
SENSOR
+12V
GND
CPUFAN
2-3
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