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: ATX1

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.

ATX 12V Power Connector: JPW1

This 12V power connector is used to provide power to the CPU.

2

4

JPW1

1

3

11

20

ATX1

1

10

JPW1 Pin Definition

PIN

SIGNAL

1

GND

2

GND

3

12V

4

12V

 

 

ATX1 Pin Definition

PIN

SIGNAL

PIN

SIGNAL

1

3.3V

11

3.3V

2

3.3V

12

-12V

3

GND

13

GND

4

5V

14

PS_ON

5

GND

15

GND

6

5V

16

GND

7

GND

17

GND

8

PW_OK

18

-5V

9

5V_SB

19

5V

10

12V

20

5V

 

 

 

 

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Image 21
MSI 865GM3 manual Power Supply, ATX 20-Pin Power Connector ATX1, ATX 12V Power Connector JPW1