Via EPIA-SP8000E User Manual - Page 35

Power Switch PW_BN, Reset Switch RST_SW, Power LED -PLED, HDD LED HD_LED

Page 35 highlights

Installation Power Switch (PW_BN) Connect to a 2-pin power button switch. Pressing this button will turn the system power on or off. Reset Switch (RST_SW) The reset switch is used to reboot the system rather than turning the power ON/OFF. Avoid rebooting the system, if the HDD is still working. Connect the reset switch from the system case to this pin. Power LED (-PLED) The LED will light when the system is on. If the system is in S1 (POS Power On Suspend) or S3 (STR - Suspend To RAM) state, the LED will blink. HDD LED (HD_LED) HDD LED shows the activity of a hard disk drive. Avoid turning the power off when the HDD LED still has a lit. Connect the HDD LED from the system case to this pin. 27

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Installation
27
Power Switch (PW_BN)
Connect to a 2-pin power button switch.
Pressing this button will turn the
system power on or off.
Reset Switch (RST_SW)
The reset switch is used to reboot the system rather than turning the power
ON/OFF.
Avoid rebooting the system, if the HDD is still working.
Connect
the reset switch from the system case to this pin.
Power LED (-PLED)
The LED will light when the system is on.
If the system is in S1 (POS -
Power On Suspend) or S3 (STR - Suspend To RAM) state, the LED will blink.
HDD LED (HD_LED)
HDD LED shows the activity of a hard disk drive.
Avoid turning the power
off when the HDD LED still has a lit.
Connect the HDD LED from the system
case to this pin.