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The mainboard supports ATX power supply for the power system. Before
inserting the power supply connector, always make sure that all components are
installed properly to ensure that no damage will be caused.
ATX 24-Pin Power Connector: ATX
This connector allows you to connect an ATX 24-pin power supply. To
connect the ATX 24-pin 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.
13
ATX
24
ATX 12V Power Connector: JPW/ JPWR
The JPW 12V power connector is used to provide power to the CPU. And the
JPWR 12V power connector is used to provide power to the PCIEX16 graphics card.
4
8
JPW Pin Definition
PIN SIGNAL
1
2
3
5
1
4
JPW
MSI Reminds You...
1. These three connectors connect to the ATX power supply and have to
work together to ensure stable operation of the mainboard.
2. Power supply of 450 watts (and above) is highly recommended for
system stability.
3. ATX 12V power connection should be greater than 18A.
Power Supply
Pin Definition
1
PIN
SIGNAL
1
+3.3V
2
+3.3V
3
GND
4
+5V
5
GND
6
+5V
7
GND
8
PWR OK
9
5VSB
10
+12V
11
+12V
12
12
+3.3V
PIN SIGNAL
GND
5
+12V
GND
6
+12V
GND
7
+12V
GND
8
+12V
Hardware Setup
PIN
SIGNAL
13
+3.3V
14
-12V
15
GND
16
PS-ON#
17
GND
18
GND
19
GND
20
NC
21
+5V
22
+5V
23
+5V
24
GND
JPWR Pin Definition
1
PIN
1
2
3
JPWR
4
SIGNAL
5V
GND
GND
12V
2-9
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