MSI MS-6777 User Guide - Page 25

Power Supply, ATX 20-Pin Power Connector: JWR1

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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 20-Pin Power Connector: JWR1 ATX 12V Power Connector: JPW1 The JWR1 provides power to the mainboard while the JPW1 is used to supply power to the CPU. These two connectors connect to the ATX power supply and have to work together to ensure stable operation of the mainboard. 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 connectors. JWR1 10 20 JPW1 3 4 1 2 JPW1 Pin Definition PIN SIGNAL 1 GND 2 GND 3 12V 4 12V 1 11 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 2-9

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2-9
Hardware Setup
Power Supply
The mainboard supports ATX power supply for the power system.
Be-
fore inserting the power supply connector, always make sure that all compo-
nents are installed properly to ensure that no damage will be caused.
ATX 20-Pin Power Connector: JWR1
ATX 12V Power Connector: JPW1
The JWR1 provides power to the mainboard while the JPW1 is used to
supply power to the CPU.
These two connectors connect to the ATX power
supply and have
to work together to ensure stable operation of the mainboard.
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 connectors.
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
JPW1
1
3
4
2
JWR1
10
1
20
11