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Diagnostics
Dell™Latitude™2100ServiceManual
Diagnostic Light Codes
Battery Light Codes
No-POST Light Codes
Diagnostic Light Codes
Diagnostic lights are located in two areas of your computer:
l Bottom left of the palm rest
l Top right side of the keyboard
Battery Light Codes
If your computer is connected to an electrical outlet, the light operates as follows:
l Solid blue – The battery is charging.
l Flashing blue – The battery is almost fully charged.
l Fast flashing orange and then solid green – The battery is in temporary failure.
l Fast flashing orange – The battery is in a fatal failure.
If your computer is running on a battery, the light operates as follows:
l Off – The battery is adequately charged, or the computer is turned off.
l Flashing orange – The battery charge is low.
l Solid orange – The battery charge is critically low.
l Fast flashing orange and then solid green – The battery is in temporary failure.
l Fast flashing orange – The battery is in a fatal failure.
No-POST Codes
The numeric key light, caps lock light, and scroll lock light are also used to diagnose issues that may occur in a no-POST scenario.
1
power light
2
hard drive activity light
3
battery light
4
wireless networking activity light
5
numeric key light
6
caps lock light
7
scroll lock light
Appearance
Description
Next Step
ON-FLASH-FLASH
1. Install supported memory modules.