Gigabyte M5NM1AI User Manual - Page 16

ATX/ATX_12V 2x2 12V Power Connector and 2x10 Main Power Connector

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2/3) ATX/ATX_12V (2x2 12V Power Connector and 2x10 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. ATX_12V FDD ATX_12V 3 4 1 2 Pin No. 1 2 3 4 Definition GND GND +12V +12V 20 ATX 10 11 1 Pin No. Definition 1 3.3V 2 3.3V 3 GND 4 +5V 5 GND 6 +5V 7 IDEGND 8 Power Good 9 5VSB (stand by +5V) 10 +12V Pin No. 11 12 13 14 15 16 17 18 19 20 Definition +12V 3.3V 3.3V -12V GND PS_ON GND GND GND -5V - 16 - Hardware Installation

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Hardware Installation
2/3) ATX/ATX_12V (2x2 12V Power Connector and 2x10 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.
1
2
3
4
Pin No.
Definition
1
GND
2
GND
3
+12V
4
+12V
11
1
10
20
ATX
ATX_12V
Pin No.
Definition
11
+12V
12
3.3V
13
3.3V
14
-12V
15
GND
16
PS_ON
17
GND
18
GND
19
GND
20
-5V
Pin No.
Definition
1
3.3V
2
3.3V
3
GND
4
+5V
5
GND
6
+5V
7
GND
8
Power Good
9
5VSB (stand by +5V)
10
+12V