Fan Headers - Biostar TA790GXBE 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.
CPU_FAN1: CPU Fan Header
SYS_FAN1/SYS_FAN2: System Fan Headers
Note:
The CPU_FAN1, SYS_FAN1, and SYS_FAN2 support 4-pin and 3-pin head connectors.
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
SYS_FAN1
1 3
SYS_ FAN 2
TA790GXBE
Assignment
Ground
+12V
FAN RPM rate
sense
Smart Fan
Control (By Fan)
Pin Assignment
1 Ground
2 +12V
3
FAN RPM
rate sense
7