Asus Crosshair V Formula/ThunderBolt - Manual (Page 56)

•. 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.
10.. System.panel.connector.(20-8.pin.PANEL)
This connector supports several chassis-mounted functions.
2-26 Chapter 2: Hardware information