User`s manual

PICO121 AMD G-Series Embedded SoC Pico-ITX Board
32 AX93277 I/O Board
3.5.5 System Reset Switch (CN9)
This switch reboots your computer without turning off the power supply. It is a better way
to reboot your system for a longer life of the system power supply.
3.5.6 USB 2.0 Connectors (USB1 and USB2)
The board comes with two double-deck Universal Serial Bus (compliant with USB 2.0
(480Mbps)) connectors on the rear I/O for installing USB peripherals such as keyboard,
mouse, scanner, etc.
1 2 3 4
5 6 7 8
3.5.7 Power and HDD LED Indicator (D1)
The red LED is linked to Hard Disk Drive (HDD) activity signal. LED flashes every time
HDD is accessed.
The power LED (green) lights up and will remain steady while the system is powered on.
Function
Description
On
Reset system
Off
Keep system status
Pin
Signal
Pin
Signal
1
+5V
5
+5V
2
USB1/3_DATA-
6
USB2/4_DATA-
3
USB1/3_DATA+
7
USB2/4_DATA+
4
GND
8
GND
LED Color
Description
Red
Hard disk drive activity
Green
Power on/off