MSI KT880 User Guide - Page 23

Power Supply, ATX 20-Pin Power Connector: JWR1

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MS-7047 ATX Mainboard 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 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. 10 20 1 11 JWR1 JWR1 Pin Definition PIN SIGNAL PIN 1 3.3V 11 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 SIGNAL 3.3V -12V GND PS_ON GND GND GND -5V 5V 5V ATX 12V Power Connector: JPW1 This 12V power connector is used to provide power to the CPU. 3 4 1 2 JPW1 JPW1 Pin Definition PIN SIGNAL 1 GND 2 GND 3 12V 4 12V MSI Reminds You... Power supply of 300 (and up) watt is highly recommended for system stability. 2-8

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2-8
MS-7047 ATX Mainboard
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 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.
PIN
SIGNAL
11
3.3V
12
-12V
13
GND
14
PS_ON
15
GND
16
GND
17
GND
18
-5V
19
5V
20
5V
PIN
SIGNAL
1
3.3V
2
3.3V
3
GND
4
5V
5
GND
6
5V
7
GND
8
PW_OK
9
5V_SB
10
12V
JWR1 Pin Definition
PIN
SIGNAL
1
GND
2
GND
3
12V
4
12V
JPW1 Pin Definition
ATX 12V Power Connector: JPW1
This 12V power connector is used to provide power to the CPU.
JWR1
10
1
20
11
JPW1
1
3
4
2
MSI
Reminds You...
Power supply of 300 (and up) watt is highly recommended for system
stability.