Asus RS120-E3 PA4 User Guide - Page 65

14. System panel connector (20-pin PANEL1) This connector supports several chassis-mounted functions. ® P5MT-R HDD LED PANEL1 P5MT-R System panel connector HDLED+ HDLED- NMIBTN# GND POWERBTN# GND NC RESETBTN# GND POWERLED+ GND POWERLEDMLED+ MLEDNC +5V GND GND SPKROUT Reset button Power LED Message LED System warning speaker Power button The sytem panel connector is color-coded for easy connection. Refer to the connector descriptions below for details. • System power LED (Green 3-pin PLED) 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. • Message LED (Brown 2-pin MLED) This connector is for the message LED cable that connects to the front panel message LED. The message LED indicates the booting status. The LED blinks when the system is in the boot process until the operating system is loaded. • System warning speaker (Orange 4-pin SPEAKER) This 4-pin connector is for the chassis-mounted system warning speaker. The speaker allows you to hear system beeps and warnings. • Hard disk drive activity LED (Red 2-pin HDD LED) 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. ASUS RS120-E3/PA4 4-17