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: ATX1
This connector allows you to connect an SSI power supply. To connect the
SSI 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.
You may use the 20-pin ATX power supply or 24-pin SSI
power supply as you like. If you'd like to use the ATX power supply,
please plug your power supply along with pin 1 & pin 13 (refer to
the image at the right hand). There is also a foolproof design on pin
11, 12, 23 & 24 to avoid wrong installation.
13
ATX1
24
ATX 12V Power Connector: JPW1
This 12V power connector is used to provide power to the CPU.
JPW1
MSI Reminds You...
1. These two connectors connect to the ATX power supply and have to
work together to ensure stable operation of the mainboard.
2. Power supply of 350 watts (and above) is highly recommended for
system stability.
3. For ATX 12V power connection, it should be greater than 18A.
Power Supply
Pin Definition
PIN
SIGNAL
1
1
+3.3V
2
+3.3V
3
GND
4
+5V
5
GND
6
+5V
7
GND
8
PWR OK
9
5VSB
10
+12V
1 1
+12V
12
12
NC
JPW1 Pin Definition
2
1
3
4
Hardware Setup
PIN
SIGNAL
13
+3.3V
14
-12V
15
GND
16
PS-ON#
17
GND
18
GND
19
GND
20
Res
21
+5V
22
+5V
23
+5V
24
GND
PIN
SIGNAL
1
GND
2
GND
3
12V
4
12V
pin 13
pin 12
2-9