
Chapter 2
2-20
The CPUFAN1 (CPU fan) & SYS_FAN (system fan) support system cool-
ing 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.
Int
e
l
845GV
CPUFAN1
SENSOR
+12V
GND
Fan Power Connectors: CPUFAN1/SYS_FAN
SYS_FAN
SENSOR
+12V
GND
1. Always consult the vendor for proper CPU cooling fan.
2. CPU Fan supports the fan control. You can install the PC
Alert utility that will automatically control the CPU Fan
speed according to the actual CPU temperature.