Gigabyte GA-K8NS-ULTRA-939 User Manual - Page 23

CPU_FAN / SYS_FAN / PWR_FAN Cooler Fan Power Connector, NB_FAN Chip Fan Connector

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English 3/4/5) CPU_FAN / SYS_FAN / PWR_FAN (Cooler Fan Power Connector) The cooler fan power connector supplies a +12V power voltage via a 3-pin power connector and possesses a foolproof connection design. Most coolers are designed with color-coded power connector wires. A red power connector wire indicates a positive connection and requires a +12V power voltage. The black connector wire is the ground wire(GND). Please remember to connect the power to the cooler to prevent system overheating and failure. Caution! Please remember to connect the power to the CPU fan to prevent CPU overheating and failure. 1 CPU_FAN / PWR_FAN Pin No. 1 2 3 Definition GND +12V Sense 1 SYS_FAN 6) NB_FAN (Chip Fan Connector) If you installed wrong direction, the chip fan will not work. Sometimes will damage the chip fan. (Usually black cable is GND) Pin No. Definition 1 +12V 2 GND 1 - 23 - Hardware Installation Process

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Hardware Installation Process
English
- 23 -
3/4/5)
CPU_FAN / SYS_FAN / PWR_FAN (Cooler Fan Power Connector)
The cooler fan power connector supplies a +12V power voltage via a 3-pin power connector and
possesses a foolproof connection design.
Most coolers are designed with color-coded power connector wires. A red power connector wire
indicates a positive connection and requires a +12V power voltage. The black connector wire is
the ground wire(GND).
Please remember to connect the power to the cooler to prevent system overheating and failure.
Caution!
Please remember to connect the power to the CPU fan to prevent CPU overheating and failure.
Pin No.
Definition
1
GND
2
+12V
3
Sense
1
1
CPU_FAN / PWR_FAN
SYS_FAN
6)
NB_FAN (Chip Fan Connector)
If you installed wrong direction, the chip fan will not work. Sometimes will damage the chip fan.
(Usually black cable is GND)
1
Pin No.
Definition
1
+12V
2
GND