Power Supply; Atx 24-Pin Power Connector: Atx1 - MSI 482 User Manual

2.4 Power Supply

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
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.
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
ATX1
24
ATX 12V Power Connector: JPW1
This 12V power connector is used to provide power to the CPU.
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.
Chapter 2 - Mainboard Hardware
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 NC
JPW1
2 1
4 3
2-7
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 Definition
PIN SIGNAL
1 GND
2 GND
3 12V
4 12V
pin 13
pin 12