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Power Button and System LEDs
The chassis includes system LEDs to indicate fan and thermal status,
hard disk status, and system power status.
1. Reset Switch
2. Fan Fail LED
3. Temperature LED
4. HDD0 Status LED
5. HDD1 Status LED
LED Information
Fan Fail LED
When the fan speed is normal, this LED is ON (steady green). The
LED turns to steady red when the fan speed crosses a critical
threshold.
Temperature LED
When the system temperature is normal, this LED is ON (steady
green). The LED turns to steady red when the system temperature
crosses a critical threshold.
SCSI HDD Drive Status LEDs
The SCSI hard disks have individual LEDs. When a hard disk is
installed, the specific LED for that hard disk is ON (steady green)
under normal conditions. When the disk becomes faulty, the LED
turns to steady red. The HDD LED is unlit when there is no hard disk
present.
HDD Activity LED
This LED flickers (green) whenever there is an IDE/SCSI HDD activity.
This LED is unlit when there is no disk activity.
Power 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.
Message LED
This LED is software programmable to indicate conditions such a
power outage.
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3
4
5
6
7
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6. HDD2 Status LED
7. Hard Disk Activity LED
8. Power LED
9. Power Button
10. Programmable Message LED
Chapter 1: System Overview
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