Gigabyte MATMH81 Manual - Page 19

ATX/ATX_12V 2x2 12V Power Connector and 2x12 Main Power Connector

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ATX al / ck 1/2) ATX/ATX_12V (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. 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 A required power, the result can lead to an unstable or unbootable system. DIF _IN N _FAN _FAN _FAN _FAN WOL ATX_12V 2ATX_121V Pin No. Definition 1 GND ATX 2 GND 43 3 +12V 4 +12V FDD 1 13 12 24 ATX ATX_12V FDD Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 Definition 3.3V 3.3V GND +5V GND +5V GND Power OK 5VSB (stand by +5V) +12V +12V 3.3V Pin No. 13 14 15 16 17 18 19 IDE 20 21 22 23 24 Definition 3.3V -12V GND PS_ON GND GND GND NA +5V +5V +5V GND Hardware Installation - 19 -

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Hardware Installation
- 19 -
2
1
4
3
1/2) ATX/ATX_12V (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.
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.
Pin No.
Definition
1
GND
2
GND
3
+12V
4
+12V
13
1
24
12
ATX
ATX_12V
Pin No.
Definition
13
3.3V
14
-12V
15
GND
16
PS_ON
17
GND
18
GND
19
GND
20
NA
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 OK
9
5VSB (stand by +5V)
10
+12V
11
+12V
12
3.3V