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1/2) ATX_12V_2X4/ATX (2x4 12V Power Connector and 2x12 Main Power Connector)
With the use of the power connector, the power supply can supply enough stable power to all the components
off and all devices are properly installed. The power connector possesses a foolproof design. Connect the
power supply cable to the power connector in the correct orientation.
The 12V power connector mainly supplies power to the CPU. If the 12V power connector is not connected,
the computer will not start.
To meet expansion requirements, it is recommended that a power supply that can withstand high
power consumption be used (500W or greater). If a power supply is used that does not provide the
required power, the result can lead to an unstable or unbootable system.
5
8
1
4
ATX_12V_2X4
12
24
1
13
ATX
3/4) CPU_FAN/SYS_FAN1/SYS_FAN2 (Fan Headers)
All fan headers on this motherboard are 4-pin. Most fan headers possess a foolproof insertion design.
When connecting a fan cable, be sure to connect it in the correct orientation (the black connector wire is
the ground wire). The speed control function requires the use of a fan with fan speed control design. For
optimum heat dissipation, it is recommended that a system fan be installed inside the chassis.
CPU_FAN:
Pin No.
1
1
2
CPU_FAN
3
4
Be sure to connect fan cables to the fan headers to prevent your CPU and system from
overheating. Overheating may result in damage to the CPU or the system may hang.
ATX_12V_2X4:
Pin No.
1
GND (Only for 2x4-pin 12V)
2
GND (Only for 2x4-pin 12V)
3
GND
4
GND
ATX:
Pin No.
1
3.3V
2
3.3V
3
GND
4
+5V
5
GND
6
+5V
7
GND
8
Power Good
9
5VSB (stand by +5V)
10
+12V
11
+12V (Only for 2x12-pin
ATX)
12
3.3V (Only for 2x12-pin
ATX)
GND
+12V
SYS_FAN1/SYS_FAN2
Sense
Speed Control
- 14 -
Pin No.
5
+12V (Only for 2x4-pin 12V)
6
+12V (Only for 2x4-pin 12V)
7
+12V
8
+12V
Pin No.
13
3.3V
14
-12V
15
GND
16
PS_ON (soft On/Off)
17
GND
18
GND
19
GND
20
NC
21
+5V
22
+5V
23
+5V (Only for 2x12-pin ATX)
24
GND (Only for 2x12-pin ATX)
SYS_FAN1/SYS_FAN2:
Pin No.
1
GND
1
2
Speed Control
3
Sense
4
VCC
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