Gigabyte GA-GC330UD User Manual page 16

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, 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.
10
1
ATX
GA-GC330UD Motherboard
ATX :
20
Pin No.
1
2
3
4
5
6
7
8
9
11
10
1
3
2
4
ATX_12V
Definition
3.3V
3.3V
GND
+5V
GND
+5V
GND
Power Good
5V SB(stand by +5V)
+12V
- 16 -
ATX_12V :
Pin No. Definition
1 GND
2 GND
3 +12V
4 +12V
Pin No. Definition
11 3.3V
12 -12V
13 GND
14 PS_ON(soft On/Off)
15 GND
16 GND
17 GND
18 -5V
19 +5V
20 +5V