User Manual

2-17
Chapter 2: Motherboard information
7. Panel switch (2-pin PANEL_SW)
This 2-pin header is for connecting a monitor switch that can turn off the LCD
panel display backlight.
8. Speaker header (4-pin SPEAKER)
The 4-pin header is for the chassis-mounted system warning speaker. The
speaker allows you to hear system beeps and warnings.
+5V
GND
GND
SPKO
SPEAKER
PIN 1
Connector type
HEADER 1x4p, 2.54mm pitch, S/T