Gigabyte GA-A75N-USB3 - Page 21

- 21 - Hardware Installation
1/2) ATX_12V/ATX (2x2 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, rst 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 APU. 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 (300W 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.
ATX:
Pin No. Denition Pin No. Denition
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 5VSB (stand by +5V) 21 +5V
10 +12V 22 +5V
11 +12V (Only for 2x12-pin ATX) 23 +5V (Only for 2x12-pin ATX)
12 3.3V (Only for 2x12-pin ATX) 24 GND (Only for 2x12-pin ATX)
ATX_12V:
Pin No. Denition
1 GND
2 GND
3 +12V
4 +12V
DEBUG PORT
G.QBOFM
13
1
24
12
ATX
ATX_12V
4
2
3
1