Introducing Mainboard
2-21
The CPUFAN1 (CPU fan), SYS_FAN1 (system fan) and NBFAN1(North
Bridge Cooler fan) support system cooling fans with +12V that is controlled by
PWM.
When connecting the wire to the three-pin head connectors, always
note that the red wire is the positive and should be connected to the +12V (that
is controlled by PWM), the black wire is Ground and should be connected to
GND. If the mainboard has a System Hardware Monitor chipset on-board, you
must use a specially designed fan with speed sensor to take advantage of the
CPU fan control.
Fan Power Connectors: CPUFAN1/SYS_FAN1/NBFAN1
SYS_FAN1/CPUFAN1/NBFAN1
SENSOR
+12V
GND
NOTE
: The NBFAN1 connector is provided by default. If you want to add
cooler onto the North Bridge, you need to connect cable to the connector.