MS-9641 Mainboard

Power Supply

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.

You may use the 20-pin ATX power supply as you like. If you’d like to use the 20-pin ATX power supply, please plug your power sup- ply along with pin 1 & pin 13 (refer to the image at the right hand). There is also a foolproof design on pin 11, 12, 23 & 24 to avoid wrong installation.

Pin Definition

pin 13

pin 12

 

 

PIN

SIGNAL

PIN

SIGNAL

 

 

1

+3.3V

13

+3.3V

 

 

2

+3.3V

14

-12V

ATX1

 

3

GND

15

GND

24

13

4

+5V

16

PS-ON#

5

GND

17

GND

 

 

 

 

6

+5V

18

GND

 

 

7

GND

19

GND

12

1

8

PWROK

20

Res

9

5VSB

21

+5V

 

 

 

 

10

+12V

22

+5V

 

 

11

+12V

23

+5V

 

 

12

VCC3

24

GND

ATX 12V Power Connector: JPW0

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

JPW1 Pin Definition

3

4

1

2

 

JPW0

PIN

SIGNAL

1GND

2GND

312V

412V

Important

1.Maker sure that all the connectors are connected to proper ATX power sup- plies 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.

2-8

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MSI Keeper 945GM manual Power Supply, ATX 24-Pin Power Connector ATX1, ATX 12V Power Connector JPW0