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2.1-4 Fan Power Connectors: CPUFAN1/PSFAN1/SYSFAN1
These connectors 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 got Hardware Monitor chipset on-board, you must use a
specially designed fan with speed sensor to take advantage of that.
+12V
GND
PSFAN1
PSFAN1
CPUFAN1
SYSFAN1
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.
Note: 1. CPUFAN1/SYSFAN1/PSFAN1 are the CPU, Power and Chassis
Cooling Fan Speed Connector (reserved for System Hardware
Monitor Option.)
2. Always consult vendor for proper CPU cooling fan.
SENSOR
: Power Supply Fan
: CPU Fan
: System(Chassis) Fan
2-18
SENSOR
+12V
GND
CPUFAN1
GND
+12V
SENSOR
SYSFAN1
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