AB Soft ATX 12V - Manual (Page 36)

Hardware Installation SY- P4I865PE Plus DRAGON 2
31
2. Cooling Fan Installation
(1) CPU Cooling Fan (CPUFAN1)
After you have seated the CPU properly on the processor, attach the 3-pin
fan cable to the CPUFAN connector on the Motherboard.
To avoid damage to the system, install according to the following pin
assignment:
CPU Cooling Fan
CPUFAN1 Pin Assignment
GND
VCC SENSOR
3 1 2