B.10 Power LED (CN16)
You can use an LED to indicate when the motherboard is on. Pin 1 of CN16 supplies the LED's power, and Pin 3 is the ground.
Table B.10: Power LED and keylock conn (CN16)
Pin | Function |
1 | LED power (+5 V) |
2 | NC |
3 | GND |
4 | NC |
5 | GND |
B.11 External Speaker Connector (CN17)
The motherboard has its own buzzer. You can also connect it to the exter- nal speaker on your computer chassis.
Table B.11: External Speaker Connector (CN17)
Pin | Function |
1 | Buzzer |
2 | NC |
3 | Buzzer |
4 | Speaker out |
| 84 |
