Gigabyte GA-785GMT-USB3 User Manual page 24

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 com-
ponents 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 con-
nector 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.
12
1
Hardware Installation
24
ATX:
Pin No.
1
2
3
4
5
6
7
8
9
10
13
11
12
ATX
1 5
4 8
ATX_12V_2X4
Definition
3.3V
3.3V
GND
+5V
GND
+5V
GND
Power Good
5VSB (stand by +5V)
+12V
+12V (Only for 2x12-pin ATX)
3.3V (Only for 2x12-pin ATX)
- 24 -
ATX_12V_2X4:
Pin No. Definition
1 GND (Only for 2x4-pin 12V)
2 GND (Only for 2x4-pin 12V)
3 GND
4 GND
5 +12V (Only for 2x4-pin 12V)
6 +12V (Only for 2x4-pin 12V)
7 +12V
8 +12V
Pin No. Definition
13 3.3V
14 -12V
15 GND
16 PS_ON (soft On/Off)
17 GND
18 GND
19 GND
20 -5V
21 +5V
22 +5V
23 +5V (Only for 2x12-pin ATX)
24 GND (Only for 2x12-pin ATX)