Fan Headers - Biostar TG31-A7 Setup Manual

2.2 FAN H
EADERS
These fan headers support cooling-fans built in the computer. The fan
cable and connector may be different according to the fan manufacturer.
Connect the fan cable to the connector while matching the black wire to
pin#1.
JCFAN1: CPU Fan Header
JNFAN1: NorthBridge Fan Header
JSFAN1: System Fan Header
Note:
The JNFAN1/JSFAN1 supports 3-pin head connector and the JCFAN1 supports 4-pin
head connector. When connecting with wires onto connectors, please note that the red
wire is the positive and should be connected to pin#2, and the black wire is Ground and
should be connected to GND.
1 4
Pin
1
2
3
4
Pin
1
2
JNFAN1
3
1 3
JSFAN1
TG31-A7
Assignment
Ground
+12V
FAN RPM rate
sense
Smart Fan
Control
Assignment
Ground
+12V
FAN RPM rate
sense
7