14
Front Panel Connector
ATX-SW
This switch is used to power on or off the system.
RESET
This switch allows you to reboot without having to power off the system.
PWR-LED
When the system’s power is on, this LED will light. When the system is in the S1 (POS - Power
On Suspend) state, it will blink every second. When the system is in the S3 (STR - Suspend To
RAM) state, it will blink every 4 seconds.
Front Panel
The System Management Bus (SMBus) connector is used to connect SMBus devices. It is a
multiple device bus that allows multiple chips to connect to the same bus and enable each one
to act as a master by initiating data transfer.
SMBus Connector
SMBus
PWR
-LED
SA
TA
-LED
RESET
ATX
-SW
Pin Assignment
Pin Assignment
ATX-SW
1
Signal
PWR-LED
2
LED Power
3
GND
4
Signal
RESET
3
GND
SATA-LED 6
SATA_LED
5
Signal
6
5
1
2
6
5
1
2
Pin Assignment
Pin Assignment
1
3V3SB
2
GND
3
SMB_CLK
4
SMB_DATA
5
SMB_ALERT
6
GND
