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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.

 

 

 

 

Pin No.

 

Definition

4

 

2

 

1

 

 

GND

3

 

1

 

2

 

 

GND

 

 

3

 

 

+12V

 

 

 

 

 

 

 

 

 

 

4

 

 

+12V

 

 

 

 

 

 

 

11

1

 

Pin No.

 

Definition

 

 

 

 

 

 

 

 

 

 

1

 

 

3.3V

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

3.3V

 

 

 

 

 

3

 

 

GND

 

 

 

 

 

4

 

 

VCC

 

 

 

 

 

5

 

 

GND

 

 

 

 

 

6

 

 

VCC

 

 

 

 

 

7

 

 

GND

 

 

 

 

 

8

 

 

Power Good

 

20

10

 

9

 

5V SB (stand by +5V)

 

 

 

 

10

 

 

+12V

 

 

 

 

 

11

 

 

3.3V

 

 

 

 

 

12

 

 

-12V

 

 

 

 

 

13

 

 

GND

 

 

 

 

 

14

 

 

PS_ON (soft on/off)

 

 

 

 

15

 

 

GND

 

 

 

 

 

16

 

 

GND

 

 

 

 

 

17

 

 

GND

 

 

 

 

 

18

 

 

-5V

 

 

 

 

 

19

 

 

VCC

 

 

 

 

 

20

 

 

VCC

 

 

GA-8S661FXM-775 Motherboard

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Gigabyte GA-8S661FXM-775 user manual ATX12V/ATX Power Connector