Power Supply; Atx 24-Pin Power Connector: Atx1; Atx 12V Power Connector: Pwrconn1 - MSI 945PL Neo Series User Manual

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.
13
24
ATX1

ATX 12V Power Connector: PWRCONN1

This 12V power connector is used to provide power to the CPU.
4
3
PWRCONN1
Important
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.
PIN
1
10
11
12
12
2
1
Pin Definition
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
+12V 22
+12V 23
+3.3V 24
Pin Definition
PIN SIGNAL
1 GND
2 GND
3 12V
4 12V
Hardware Setup
SIGNAL
+3.3V
-12V
GND
PS-ON#
GND
GND
GND
Res
+5V
+5V
+5V
GND
2-9