Fan Headers - Biostar T41 HD 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: NorthBridge Fan Header
SYS_FAN2: System Fan Header
Note:
SYS_FAN1/2 supports 3-pin head connectors; CPU_FAN1 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.
Pin
Assignment
1 Ground
4
2 +12V
3
FAN RPM rate
sense
1
4 Smart Fan
Control
Pin
Assignment
1 Ground
2 +12V
SYS _FAN1
3 FAN RPM rate
sense
1 3
SYS _FAN2
T41 HD
7