MSI MS-7185 Instruction Manual download pdf (Page 20)

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.

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 PWR OK

9 5VSB

10 +12V

11 +12V

12 NC

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.

ATX 24-Pin Power Connector: ATX1

This connector allows you to connect an ATX 24-pin power supply. To con-

nect 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 supply 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.

ATX1

pin 12

pin 13

MSI Reminds You...

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.

JPW1

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MSI MS-7185 Instruction Manual Page 20

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