Intel Socket 478 AIMB-744 - Manual (Page 98)

AIMB-744 User’s Manual 84
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.
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.10: Power LED and keylock conn (CN16)
Pin
Function
1 LED power (+5 V)
2 NC
3 GND
4 NC
5 GND
Table B.11: External Speaker Connector (CN17)
Pin
Function
1 Buzzer
2 NC
3 Buzzer
4 Speaker out