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Chapter 2
2.4 Power Supply
The mainboard supports ATX power supply for the power system. Be-
fore inserting the power supply connector, always make sure that all
components are installed properly to ensure that no damage will be
caused.
ATX 20-Pin Power Connector: ATX1
This connector allows you to connect to an power supply. To connect to
the power supply, make sure the plug of the power supply is inserted in
the proper orientation and the pins are aligned. Then push down the
power supply firmly into the connector.
ATX 12V Power Connector: JPW1
This 12V power connector is used to provide power to the CPU.
11
20
ATX1
2
4
JPW1
MSI Reminds You...
These two connectors connect to the power supply and have to work
together to ensure stable operation of the mainboard.
ATX1 Pin Definition
1
PIN
1
2
3
4
5
6
7
10
8
9
10
1
3
2-10
SIGNAL
PIN
3.3V
11
3.3V
12
GND
13
5V
14
GND
15
5V
16
GND
17
PW_OK
18
5V_SB
19
20
12V
JPW1 Pin Definition
PIN
SIGNAL
1
GND
2
GND
3
12V
4
12V
SIGNAL
3.3V
-12V
GND
PS_ON
GND
GND
GND
-5V
5V
5V
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