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Internal I/O Connectors
X
Cooling Fan Connectors
CPU Fan (PWM)
These fan connectors are used to connect cooling fans. The cooling fans will provide adequate
airflow throughout the chassis to prevent overheating the CPU and system board components.
The 4-pin fans provide PWM to modulate fan speed.
BIOS Setting
Configure the Smart Fans in the "Advanced > SIO NCT6112D > Hardware Monitor" submenu of
the BIOS. Refer to chapter 3 for more information.
„ 4-pin Fan Pin Assignment
Pin Assignment
1
2
3
4
User's Manual | PR610-C621
1
„ PWM Fan
System Fan 1 (PWM)
System Fan 2 (PWM)
Ground
Power
Sense
Speed Control
Internal I/O Connectors
X
Power Connector
GND
+12V
4
1
5
8
5
1
+12V
GND
Use a power supply that complies with the ATX12V Power Supply Design Guide Version 1.1. An
ATX12V power supply unit has a standard 24-pin ATX main power connector that must be in-
serted into the 24-pin connector. The 8-pin +12V power connector enables the delivery of more
+12VDC current to the processor's Voltage Regulator Module (VRM).
The power connectors from the power supply unit are designed to fit the 24-pin and 8-pin con-
nectors in only one orientation. Make sure to find the proper orientation before plugging the
connectors.
The system board requires a minimum of 300 Watt power supply to operate. Your system con-
figuration (CPU power, amount of memory, add-in cards, peripherals, etc.) may exceed the mini-
mum power requirement. To ensure that adequate power is provided, we strongly recommend
that the system is supplied with a minimum of 400 Watt power.
Important:
Insufficient power supplied to the system may result in instability or malfunction
of the add-in boards and peripherals. Calculating the system's approximate power
usage is important to ensure that the power supply meets the system's consump-
tion requirements.
Chapter 2
HARDWARE INSTALLATION
8
„ ATX 8-pin Power Connectors
4
24
13
12
1
„ ATX 24-pin Power
Connector
19
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