11
4.2. CPU_FAN1 (CPU FAN socket)
This receptacle can be used for connecting CPU/system fan. Its pins are
defined below. The user shall make sure the fan is conforming.
PIN
Definition
1
2
3
4
+5V
GND
GND
+12V
PIN
1
2
3
Definition
GND
12V
SIGNAL
PIN
Definition
1-2#
2-3
Normal
CLR_CMOS
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4.3. CLR_CMOS(CMOS pin)
The correct time, system hardware and other information are saved in the
CMOS memory of the motherboard. The interruption the computer’s power
won’t cause the loss of this information, for the CMOS is powered by the
battery on the motherboard. The port is defined as follows:
1
1
2
3
2 3 4
1
2
3
12
