Power Supply; Atx 20-Pin Power Connector: Jwr1 - MSI Micro ATX Manual

Chapter 2

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 20-Pin Power Connector: JWR1

This connector allows you to connect to an ATX power supply. To connect to
the ATX power supply, make sure the plugs 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.
20
10
Power Connector
JWR1 Pin Definition
PIN SIGNAL
PIN
1 3.3V
1 1
2 3.3V
12
3 GND
13
4 5V
14
5 GND
15
6 5V
16
7 GND
17
8 PW_OK
18
9 5V_SB
19
10 12V 20
Since the mainboard has instant power on function,
make sure that all components are installed properly
WARNING!
before inserting the power connector to ensure that no
damage will be done.
11
1
ATX
SIGNAL
3.3V
-12V
GND
PS_ON
GND
GND
GND
-5V
5V
5V
2-8