System Status Led Pin Header (Jp13) - Aaeon MB-668 Manual

MB-668
Speaker/Buzzer (JP12)
This onboard jumper provides users easy manual settings for on
board buzzer and external speaker. By just following the illustration
of the settings below:
* on board buzzer
1 2
* Default

System Status LED Pin Header (JP13)

LED indicator for system status, it serves as an early warning
indicator and as well as a quick troubleshooting indicator. Just
follow the pin definition for each 7 LEDs illustrated below:
Pin Signal
1 Power_ON LED
3 CPU_fan LED
5 System_fan LED
7 HDD_access LED
9 Low_temperature LED
11 High_temperature LED
13 LAN_access LED
1 0 MB-668 Installation Guide
3 4
BC-599/596
external speaker
1 2 3 4
Pin Signal
2 Vcc
4 Vcc
6 Vcc
8 Vcc
10 Vcc
12 Vcc
14 Vcc