Asus AP2400R Hard Drive Power & Status LEDs, System Reset Button, Programmable Message LED, Fan Fail or High Temperature LED, Power Supply Failure LED, Power ON LED

LED Information

Hard Drive Power & Status LEDs

The SCSI hard drives have individual LEDs. When a hard drive is installed, the specific LED for that hard drive is ON (steady green) under normal conditions. If there is a problem, the LED may turn to a steady amber. These LEDs are unlit when there is no hard drive is present.

System Reset Button

This button resets (reboots) the system in case it does not respond to normal commands.

Programmable Message LED

This LED is software programmable to indicate conditions such a power outage or event warnings.

Fan Fail or High Temperature LED

When fan speeds and temperatures are normal, this LED shows a steady green. This LED turns to steady amber when fan speeds decrease or temperatures increase past a critical threshold.

Power Supply Failure LED

This LED lights when there is a serious problem with the power supply.

Hard Disk Activity LED

This LED flickers (green) whenever there is IDE or SCSI activity. This LED is unlit when there is no disk activity.

Power ON LED

This LED lights up (steady green) when you apply power to the system by pressing the power button. This LED goes off when you turn off the system.

System Power Button

The system power button is connected to the motherboard and is used for turning the system ON or OFF.

AP2400R Hardware Reference Guide 17