Fan Headers - Biostar CX70M-PE Setup Manual

2.2 F H
AN EADERS
These fan headers support cooling-fans built in the system.
cable and connector may be different according to the fan manufacturer.
Connect the fan cable to the connector while matching the black wire to
GND.
CPU Fan Header
1 3
Pin
CX70M-PE
The fan
Assignment
1 FAN_MCM
2 Smart_Fan
3 GND
9