Mainboard PM945GC(V2.0)

Power Supply Attachments

ATX Power Connector: ATXPWR, ATX12V

These mainboards provide two ATX power connectors, one 24-pin ATXPWR connector and one 4-pin ATX12V connector. You must use a power supply that has both of these connectors and both connectors must be attached before the system is powered on. These power connectors support several power management functions such as the instant power-on function. The connector pins are described below.

 

Pin

Assignment

Pin

Assignment

 

 

 

 

 

 

1

+3.3V

13

+3.3V

 

2

+3.3V

14

-12V

 

3

Ground

15

Ground

 

4

+5V

16

Soft Power ON

 

5

Ground

17

Ground

 

6

+5V

18

Ground

 

7

Ground

19

Ground

 

8

PW_ON

20

-5V

 

9

+5V standby voltage

21

+5V

 

10

+12V

22

+5V

ATXPWR

11

+12V

23

+5V

 

12

+3.3V

24

Ground

 

Pin

Assignment

Pin

Assignment

 

 

 

 

 

 

1

Ground

3

+12V

ATX12V

2

Ground

4

+12V

Attention

In general, power cords are designed and should be attached with a specific direction. The black wire of the power cord is Ground and should be attached onto the header location of Ground.

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