Asus K8N-LR User Manual - Page 48

12. System panel connector (20-pin PANEL1) This connector supports several chassis-mounted functions. R K8N-LR PANEL1 POWERLED+ GND POWERLEDMLED+ MLEDNC +5V GND GND SPKROUT HDLED+ HDLEDNMIBTN# GND POWERBTN# GND NC RESETBTN# GND K8N-LR System Panel Connector The system panel connector is color-coded for easy connection. Refer to the connector description below for details. • System power LED (Green 3-pin POWERLED) This 3-pin connector is for the system power LED. Connect the chassis power LED cable to this connector. 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 (Red 2-pin HDDLED) This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable to this connector. The IDE LED lights up or flashes when data is read from or written to the HDD. If an optional SATA add-in card is installed, the read or write activities of any device connected to the SATA add-in card causes this LED to light up. • System warning speaker (Orange 4-pin SPKROUT) This 4-pin connector is for the chassis-mounted system warning speaker. The speaker allows you to hear system beeps and warnings. • Power/Soft-off button (Yellow 2-pin POWERBTN) This connector 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 BIOS settings. Pressing the power switch for more than four seconds while the system is ON turns the system OFF. • Reset button (Blue 2-pin RESETBTN) This 2-pin connector is for the chassis-mounted reset button for system reboot without turning off the system power. 2-28 Chapter 2: Hardware information