D Diagnostic Indicator Lights; Keyboard Lights - HP xw4000 Service & Reference Manual

All indicator lights are not available on all products.

Keyboard Lights

LED
Num Lock
Caps Lock
Scroll Lock
Chassis Indicator Lights—Desktop Computers and Workstations
LED
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power and
hard drive
*Varies by model.
**Most models. Blue LED glows on Evo Workstation W8000.
Service Reference Guide
Diagnostic Indicator Lights
Color LED Activity
Green Flashing
Green Flashing
Green Flashing
Color LED Activity
Green On
Green 1 blink/second
Green 1 blink/second
None None
Red On
Red* 4 blinks/second
Red* Computer shuts down
Red* 2 blinks 1 second apart
followed by 2 second
pause then repeat pattern
Red 1 blink/second
Red 1 blink/2 or more seconds
Red On
State/Message
Memory error
No video
System board failure, prior to video
State/Message
Computer on
Normal suspend mode
Suspend to RAM
Computer off
CPU not installed/fetching code
CPU thermal shutdown
CPU thermal shutdown
CPU thermal shutdown
ROM error
Power supply overheated
Riser board not seated
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