Dell E6540 owner manual Device Status Lights, Battery Status Lights, Alternately

Page 64

Device Status Lights

Table 14. Device Status Lights

Turns on when you turn on the computer and blinks when the computer is in a power management mode.

Turns on when the computer reads or writes data.

Turns on steadily or blinks to indicate battery charge status.

Turns on when wireless networking is enabled.

The device status LEDs are usually located either on the top or left side of the keyboard. They are used to display the storage, battery and wireless devices connectivity and activity. Apart from that they can be useful as a diagnostic tool when there's a possible failure to the system.

The following table lists how to read the LED codes when possible errors occur.

Table 15. LED Lights

Storage LED

Power LED

Wireless LED

Fault Description

 

 

 

 

Blinking

Solid

Solid

A possible processor failure has occurred.

Solid

Blinking

Solid

The memory modules are detected but has encountered an

 

 

 

error.

Blinking

Blinking

Blinking

A system board failure has occurred.

Blinking

Blinking

Solid

A possible graphics card/video failure has occurred.

Blinking

Blinking

Off

System failed on hard drive initialization OR System failed in

 

 

 

Option ROM initialization.

Blinking

Off

Blinking

The USB controller encountered a problem during

 

 

 

initialization.

Solid

Blinking

Blinking

No memory modules are installed/detected.

Blinking

Solid

Blinking

The display encountered a problem during initialization.

Off

Blinking

Blinking

The modem is preventing the system from completing POST

Off

Blinking

Off

Memory failed to initialize or memory is unsupported.

Battery Status Lights

If the computer is connected to an electrical outlet, the battery light operates as follows:

Alternately

An unauthenticated or unsupported non-Dell AC adapter is attached to your laptop.

blinking amber

 

light and white

 

light

 

64

Image 64
Contents Regulatory Model P29F Regulatory Type P29F001 Dell Inc Contents Diagnostics System SetupTechnical Specifications Contacting Dell Working on Your Computer Before Working Inside Your ComputerTurning Off Your Computer Click Shut DownAfter Working Inside Your Computer Recommended Tools System OverviewInstalling the Secure Digital SD Card Removing the Secure Digital SD CardRemoving the Battery Installing the ExpressCardRemoving the ExpressCard Installing the Battery Removing the Base CoverLift the base cover and remove it from the computer Installing the Base Cover Removing the Base Corner CapsInstalling the Base Corner Caps Removing the MemoryInstalling the Memory Removing the Hard DriveInstalling the Hard Drive Removing the Optical DriveInstalling the Optical Drive Installing the Wlan Card Removing the Wireless Local Area Network Wlan CardRemoving the Wireless Wide Area Network Wwan Card Installing the Wwan Card Removing the Network ConnectorInstalling the Network Connector Removing the Coin-Cell BatteryInstalling the Coin-Cell Battery Removing the Power ConnectorInstalling the Power Connector Removing the Heat-Sink AssemblyInstalling the Heat-Sink Assembly Removing the ProcessorInstalling the Processor Removing the KeyboardInstalling the Keyboard Removing the Palmrest AssemblyPage Page Page Installing the Palmrest Assembly Removing the WiFi-Switch Board Installing the WiFi-Switch BoardRemoving the VGA Board Installing the VGA BoardRemoving the ExpressCard Cage Installing the ExpressCard Cage Removing the System BoardPage Lift the system board from the computer Installing the System Board Removing the Speakers Lift the speakers from the computer Installing the Speakers Removing the Display Assembly Installing the Display-Hinge CapRemoving the Display-Hinge Cap Page Page Remove the display assembly from the computer Installing the Display Assembly Removing the Display BezelPage Installing the Display Bezel Removing the Display PanelPage Installing the Display Panel Removing the Display HingesInstalling the Display Hinges Removing the CameraInstalling the Camera Boot Sequence Navigation KeysSystem Setup Options Option Description Date/Time Option Description Integrated NICParallel Port Serial PortEnable Smart Reporting USB ConfigurationUSB PowerShare Unobtrusive ModeOption Description Admin Password System PasswordStrong Password Password ConfigurationEnable CPU XD SupportDefault Setting Orom Keyboard AccessAdmin Setup Lockout Option Description Secure Boot EnableWireless Radio Control Option Description AC BehaviorAuto On Time Deep Sleep ControlAdvanced Battery Charge ConfigurationPrimary Battery Charge Battery Slice ChargeKeyboard Errors FastbootExtend Bios Post Time Enable Intel Virtualization Technology Default SettingUpdating the Bios System and Setup Password ComputerPage Diagnostics Enhanced Pre-Boot System Assessment ePSA DiagnosticsBattery Status Lights Storage LED Power LED Wireless LED Fault DescriptionDevice Status Lights AlternatelyWhite light on Technical Specifications Feature SpecificationFeatures Specification USB Axis 45.00 mm Weight 36 kg 5.21 lb Contacting Dell