SOYO SY-7VBA133U User Manual page 21

Hardware Installation
4. ACPI LED
Connecting the 2-pin ACPI LED cable to the corresponding ACPI LED
header will cause the LED to light whenever the system is in ACPI mode.
The manufacturer has permanently set this Motherboard in ACPI mode
due to most hardware and software compliance to ACPI mode.
5. IDE LED
Attach the 2-pin IDE device LED cable to the corresponding IDE LED
header on the Motherboard. This will cause the LED to lighten when an
IDE (HDD, CD-ROM) device is active.
6. ATX Power On/Off Switch
Attach the 2-pin momentary type switch to the PWRBT header for turning
On or Off your ATX power supply.
ACPI LED Pin Assignment
_
+
LED Anode
HDD LED Pin Assignment
+
LED Anode LED Cathode
PWRBT Pin Assignment
1
Power On/Off
18
LED Cathode
_
GND
SY-7VBA133U