Asus M2N4-SLI - Manual (Page 50)

2-30 Chapter 2: Hardware information
9. System panel connector (20-pin PANEL)
This connector supports several chassis-mounted functions.
R
M2N4-SLI
M2N4-SLI System Panel Connector
* Requires an ATX power supply
PANEL
PLED-
PWR
+5V Speaker
Ground
RESET
Ground
Reset
Ground Ground
PWRSW
PLED+
IDE_LED- IDE_LED+
IDE_LED
PLED SPEAKER
• System power LED (2-pin PLED)
This 2-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 LED (2-pin IDE_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.
• System warning speaker (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.
• ATX power button/soft-off button (2-pin PWRSW)
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 (2-pin RESET)
This 2-pin connector is for the chassis-mounted reset button for
system reboot without turning off the system power.