Interpreting The Diagnostic Lights - HP Deskpro EN DT 6500 Plus Getting Started

Interpreting the
Diagnostic Lights
Normal Operating Conditions
Power off
Power on
Suspend
Suspend to disk
Error Conditions
Thermal shutdown
Processor not installed correctly
ROM error
Power supply overload
Expansion card cage not installed
correctly (select models)
2-16 Getting Started with Hardware
The Compaq Deskpro Family of Personal Computers features
diagnostic lights or LEDs (light emitting diodes) to indicate
various computer states or errors. The following tables describe
the diagnostic light indications. Refer to the Troubleshooting
Guide for more information.
Power Light
Off
Solid green
Blinking green with 1 blink
every second
Blinking green with 1 blink
every 2 seconds
Power Light
Blinking red with 4 blinks
every second
Solid red
Blinking red with 1 blink
every second
Blinking red with 1 blink
every 2 or more seconds
Solid red
Hard Drive Activity Light
Off
Blinking green during hard
drive activity
Off
Off
Hard Drive Activity Light
Off
Off
Off
Off
Solid red