Gigabyte MBBZ1AI 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 ATX_12V Pin No. Definition 3 4 1 GND 2 GND 1 2 3 +12V ATX 4 +12V FDD 1 12 ATX 10 1 ATX_12V FDD Pin No. Definition 1 3.3V 2 3.3V 3 GND 4 +5V 5 GND 6 ID+E5V 7 GND 8 Power Good 9 5VSB (stand by +5V) 10 +12V 11 +12V 12 3.3V Pin No. 13 14 15 16 17 18 19 20 21 22 23 24 Definition 3.3V -12V GND PS_ON GND GND GND -5V +5V +5V +5V GND - 16 - Hardware Installation

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- 16 -
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 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.
1
2
3
4
Pin No.
Definition
1
GND
2
GND
3
+12V
4
+12V
12
1
10
1
ATX
ATX_12V
Pin No.
Definition
13
3.3V
14
-12V
15
GND
16
PS_ON
17
GND
18
GND
19
GND
20
-5V
21
+5V
22
+5V
23
+5V
24
GND
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
11
+12V
12
3.3V