MSI MS-7338 User Manual download pdf (Page 24)

MS-7338 Mainboard

2-10

Power Supply

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 +3.3V

Pin Definition

pin 12

pin 13

JPWR3

Important

1. Make 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.

4. If the JPWR2 connector too closes the heatpipe and plug inconveniently. You

could use the bundled ATX Extender to increase connector height. It can

prevent the power cable to touch the heatpipe as well.

ATX 24-Pin Power Connector: JPWR3

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).

JPWR2

PIN SIGNAL

1 5V

2 GND

3 GND

4 12V

Pin Definition

JPWR1

PINSIGNAL

5 +12V

6 +12V

7 +12V

8 +12V

PINSIGNAL

1 GND

2 GND

3 GND

4 GND

Pin Definition

ATX 5V / 12V Power Connector: JPWR2 / JPWR1

The JPWR2 12V power connector is used to provide power to the CPU. And the

JPWR1 5V / 12V power connector is used to provide power to the PCIEX16 graphics

card.

7338v1.0CH2 Hardware Setup.p65 2007/6/5, 下午 02:5510

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MSI MS-7338 User Manual Page 24

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