Asus ROG STRIX B550-F GAMING WI-FI ROG STRIX B550-F GAMING WI-FI Users Manual - Page 31
System power LED 2-pin PLED, System Panel header
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Chapter 1 PLED+ PLEDPWRBTN# GND +5V Ground Ground Speaker HDD_LED+ HDD_LED- Ground RSTCON# NC PLED+ PLED- 14. System Panel header The System Panel header supports several chassis-mounted functions. PLED PWRSW SPEAKER PANEL PIN 1 HDD_LED RESET PLED • System power LED (2-pin PLED) 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. • System warning speaker (4-pin SPEAKER) This 4-pin header is for the chassis-mounted system warning speaker. The speaker allows you to hear system beeps and warnings. • ATX power button/soft-off button (2-pin PWRSW) This header is for the system power button. Pressing the power button turns the system on or puts the system in sleep or soft-off mode depending on the operating system settings. Pressing the power switch for more than four seconds while the system is ON turns the system OFF. • 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. ROG STRIX B550-F GAMING (WI-FI) 1-19