Power connector (CN23)

ATX power connector (CN23)

The ATX power supply uses 20-pin connector shown below. Make sure you plug in the right direction.

ATX power connector (CN23)

Pin

Signal

Pin

Signal

1

+3.3V

11

+3.3V

 

 

 

 

2

+3.3V

12

-12V

 

 

 

 

3

GND

13

GND

4

+5V

14

POWER ON

5

GND

15

GND

 

 

 

 

6

+5 V

16

GND

 

 

 

 

7

GND

17

GND

 

 

 

 

8

POWER OK

18

-5V

 

 

 

 

9

+5VSB

19

+5V

10

+12V

20

+5V

 

 

 

 

Speaker/Buzzer (CN 24)

You can choose to use the internal buzzer on the SBC-776 baord, or you may use your own external speaker.

Speaker/Buzzer (CN24)

Speaker

 

On Board Buzzer

 

 

 

 

 

 

 

 

1

2

3

4

1

2

3

4

CN24

SBC-776 Chapter 2 37

Page 47
Image 47
Intel SBC-776 manual Power connector CN23, Speaker/Buzzer CN