Asus ROG STRIX B550-E GAMING Manual page 32

18. System Panel header
The System Panel header supports several chassis-mounted functions.
• System power LED (2-pin +PWR_LED-)
This 2-pin header is for the system power LED. Connect the chassis power LED cable
to this header. The system power LED lights up when you turn on the system power,
and blinks when the system is in sleep mode.
• Hard disk drive activity LED (2-pin +HDD_LED-)
This 2-pin header is for the HDD Activity LED. Connect the HDD Activity LED cable
to this header. The HDD LED lights up or flashes when data is read from or written to
the HDD.
• Power button/Soft-off button (2-pin PWR_BTN)
This header is for the system power button.
• Reset button (2-pin RESET)
This 2-pin header is for the chassis-mounted reset button for system reboot without
turning off the system power.
1-20
F_PANEL
+PWR LED PWR BTN
PIN 1
+HDD_LED RESET
Chapter 1: Product Introduction