1/2) ATX_12V / ATX (Power Connector)

With the use of the power connector, the power supply can supply enough stable power to all the components on the motherboard. Before connecting the power connector, please make sure that all components and devices are properly installed. Align the power connector with its proper location on the motherboard and connect tightly.

The ATX_12V power connector mainly supplies power to the CPU. If the ATX_12V power connector is not connected, the system will not start.

Caution!

Please use a power supply that is able to handle the system voltage requirements. It is recommended that a power supply that can withstand high power consumption be used (300W or greater). If a power supply is used that does not provide the required power, the result can lead to an unstable system or a system that is unable to start.

If you use a 24-pin ATX power supply, please remove the small cover on the power connector on the motherboard before plugging in the power cord; otherwise, please do not remove it.

 

 

Pin No.

Definition

3

4

1

GND

2

GND

1

2

3

+12V

 

 

4

+12V

English

13

1

 

 

 

 

 

 

 

Pin No.

Definition

 

Pin No.

Definition

 

 

1

3.3V

13

3.3V

 

 

2

3.3V

14

-12V

 

 

3

GND

15

GND

 

 

4

+5V

16

PS_ON(soft On/Off)

 

 

5

GND

17

GND

 

 

6

+5V

18

GND

 

 

7

GND

19

GND

 

 

8

Power Good

20

-5V

 

 

9

5V SB(stand by +5V)

21

+5V

 

 

10

+12V

22

+5V

24

12

11

+12V(Onlyfor24-pinATX)

23

+5V (Only for 24-pin ATX)

 

 

12

3.3V(Onlyfor24-pinATX)

24

GND(Only for 24-pin ATX)

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Hardware Installation

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Gigabyte GA-K8N51PVM9-RH user manual ATX12V / ATX Power Connector