Hardware Installation- 23 -
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4/5/6) CPU_FAN / SYS_FAN / PWR_FAN (Cooler Fan Power Connector)
The cooler fan power connector supplies a +12V power voltage via a 3-pin/4-pin (only for
CPU_FAN/SYS_FAN) 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 CPU/system fan cable to the CPU_FAN/SYS_FAN connector to
prevent the CPU/system from overheating and failure.
1
Pin No. Definition
1 GND
2 +12V/Speed Control
3 Sense
4 Speed Control
CPU_FAN/SYS_FAN:
PWR_FAN:
PWR_FAN
1
1
SYS_FAN
CPU_FAN
Pin No. Definition
1 GND
2 +12V
3NC
3) PCIE_12V (Power Connector)
This power connector provides extra power to the onboard PCI Express x16 slot. When installing
two graphics cards, please connect the power cable from the power supply to this connector, or
system instability may occur.
PIin No. Definition
1NC
2 GND
3 GND
4 +12V
1