User’s Manual
8
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
Pin Assignment
1 Ground
2 +12V
3
FAN RPM rate sense
4
Smart Fan Control
SYS_FAN1/2: System Fan Header
Pin Assignment
1 Ground
2 +12V
3
FAN RPM rate sense
Note:
The SYS_FAN1/2 support 3-pin head connectors; the 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.
