Acrosser AMB-D255T3?(Mini-ITX) - Manual (Page 13)

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23. CMOS Clear Jumper（3*1 Pin 2.54mm）
Location Jumper Setting Function
JCMOS1
1-2(Default) Normal
2-3 Clear CMOS
24. Front Panel Header（5*2 Pin 2.54mm）
Location Header Pin Definition Pin Definition
F_PANEL1
1 HD LED+ 2 Power LED+
3 HD LED- 4 Power LED-
5 RESET- 6 PWR+
7 RESET+ 8 PWR-
9 N/C
25. Front USB Headers（5*2 Pin 2.54mm）
Location Header Pin Definition Pin Definition
F_USB1
1 + 5 V 2 + 5 V
3 USB4- 4 USB5-
5 USB4+ 6 USB5+
7 GND 8 GND
10 N/C
Note. It can not use USB Hub with power adaptor that connects to USB port.