MSI 945P NEO5-F User Guide - Page 25

Power Supply - cpu support

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Page 25 highlights

Hardware Setup 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. 12 24 1 13 ATX1 Pin Definition PIN SIGNAL PIN SIGNAL 1 +3.3V 13 +3.3V 2 +3.3V 14 -12V 3 GND 15 GND 4 +5V 16 PS-ON# 5 GND 17 GND 6 +5V 18 GND 7 GND 19 GND 8 PW R OK 20 Res 9 5VSB 21 +5V 10 +12V 22 +5V 11 +12V 23 +5V 12 +3.3V 24 GND ATX 12V Power Connector: JPW1 This 12V power connector is used to provide power to the CPU. 3 4 1 2 JPW1 Pin Definition PIN SIGNAL 1 GND 2 GND 3 12V 4 12V 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. 2-9

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2-9
Hardware Setup
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.
ATX 12V Power Connector: JPW1
This 12V power connector is used to provide power to the CPU.
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
+3.3V
2
+3.3V
3
GND
4
+5V
5
GND
6
+5V
7
GND
8
PW R OK
9
5VSB
10
+12V
11
+12V
12
+3.3V
Pin Definition
ATX1
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.
Important
PIN
SIGNAL
1
GND
2
GND
3
12V
4
12V
Pin Definition
JPW1
3
4
1
2
1
12
24
13