Cpu And System Fan Power Connector (Cn1) - Aaeon PCM-6896 Manual

CPU and System Fan Power Connector (CN1 & CN24)
One 3-pin plug in and error free onboard connectors are located
accessibly for trouble-free connection and disconnection. For CPU
fan it is labeled CN1 for system fan. Pin definitions are listed below:
CPU Fan Power Connector (CN1)
Pin
1
2
3
Fan Power Connector (CN24)
Pin
1
2
3
Signal
GND
+12V
Fan Speed Sensor
Signal
GND
+12V
NC