Power Supply; Atx 24-Pin Power Connector: Atx1; Atx 12V Power Connector: Jpw1 - MSI RS480M Manual

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 ATX 24-pin power supply. To con-
nect 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.
You may use the 20-pin ATX power supply as you like. If
you'd like to use the 20-pin 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 1
ATX1
24
12

ATX 12V Power Connector: JPW1

This 12V power connector is used to provide power to the CPU.
JPW1
2
4
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. ATX 12V power connection should be greater than 18A.

Power Supply

Pin Definition
PIN SIGNAL PIN
1 +3.3V 13
2 +3.3V 14
3 GND 15
4 +5V 16
5 GND 17
6 +5V 18
7 GND 19
8 PWR OK 20
9 5VSB 21
10 +12V 22
11 +12V 23
24
12 +3.3V
Pin Definition
PIN SIGNAL
1
1 GND
3
2 GND
3 12V
4 12V
Hardware Setup
pin 13
pin 12
SIGNAL
+3.3V
-12V
GND
PS-ON#
GND
GND
GND
Res
+5V
+5V
+5V
GND
2-9