MSI MICRO ATX EX7 Manual page 23

2.1-4 Fan Power Connectors: JFAN1/PSFAN1/CFAN1/SFAN1
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 has System Hardware Monitor chipset on-board, you must use a
specially designed fan with speed sensor to take advantage of this function.
GND +12V GND
JFAN1
PSFAN1 : Power Supply Fan
CFAN1 : CPU Fan
SFAN1 : System(Chassis) Fan
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. CFAN1/SFAN1/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.
2-19
+12V
GND S E N S O R
PSFAN1(optional)
+12V
GND S E N S O R
CFAN1(optional)
+12V
GND
S E N S O R
SFAN1(optional)