Gigabyte Understanding the ATX 12V 2x4 Power Connector for Motherboards

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 on the motherboard. Before connecting the power connector, first make sure the power supply is turned 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.

•The power connectors are compatible with power supplies with 2x2 12V and 2x10 power connectors. When using a power supply providing a 2x4 12V and a 2x12 power connector, remove the protective covers from the 12V power connector and the main power connector on the motherboard. Do not insert the power supply cables into pins under the protective covers when using a power supply providing a 2x2 12V and a 2x10 power connector.

8	4	ATX_12V_2X4:
		Pin No.	Definition
		1	GND(Only for 2x4 pin 12V)
5	1	2	GND (Only for 2x4 pin 12V)
		3	GND
	ATX_12V_2X4	4	GND
		5	+12V (Only for 2x4 pin 12V)
		6	+12V (Only for 2x4 pin 12V)
		7	+12V
		8	+12V

13

24

	ATX:
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
	11	+12V(Onlyfor2x12-pinATX)	23	+5V (Only for 2x12-pinATX)
12	12	3.3V(Onlyfor2x12-pinATX)	24	GND (Only for 2x12-pinATX)

ATX

GA-MA770T-UD3P Motherboard - 22 -