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The External LEDs The small indicator lights on the system are known as LEDs. They serve as status lights for your laptop. In this section, we deal with the three LEDs along the top edge on the exterior of the laptop. (Figure.1 External LEDs) Table.1: External LED callouts 1 Power LED - Indicates the Power Status 2 Hard drive Activity LED - Turns white when the laptop reads or writes to the hard drive. 3 Battery LED - Indicates the Battery Status Note : To Avoid Data Loss, you should never turn the laptop off while the hard drive activity indicators are flashing. The Power LED indicates the power status as follows: Table.2: Power LED Status Power State LED Behavior On Solid White Standby Breathe White (Flashes slowly). Off, Hibernate Off The Battery LED indicates the Battery status as follows: Table.3: Battery LED Status Battery State LED Behavior Non-Dell AC adapter plugged to Notebook Alternately blinking Amber and White light Temporary Battery Failure with AC Adapter present Alternately blinking Amber with a steady White light Fatal Battery Failure with AC Adapter present Constantly blinking Amber light Battery in Full-Charge Mode with AC Adapter present Light off Battery in Charge Mode with AC Adapter present Constant White light Back to Top
The Palm-rest LEDs The Device status LEDs are located across the upper right-hand side of the keyboard. They are used to display the status of the Storage, Battery, and Wireless Activity. They can also be used as a diagnostics tool. ( Figure.2 Palm-rest LEDs) Table.4: Palm-rest LED callouts 1 Storage LED 2 Power LED 3 Wireless LED Check the Links section below for more information about how to use these LEDs to further troubleshoot any issues you are having with your laptop. Back to Top
Links I have included several links below. These articles either use the LEDs to troubleshoot a fault with your computer or explain what the combination of LEDs and their State means. Laptop Diagnostic LED codes and Battery LED codes Diagnostic Indicators (Precision Mobiles) ePSA Diagnostics Guide How to Troubleshoot a No POST Issue on a Dell Laptop How to Troubleshoot a No Power Issue on a Laptop How to Troubleshoot a Dell Laptop LCD Panel issue How to resolve Wireless Networking issues on my Dell computer Back to Top
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