Dell Latitude E7270 Owner's Manual

Also see for Latitude E7270: How-to guide Owner's manual

Contents

Dell Latitude E7270 Owner's Manual Manual pdf 54 page image

4DiagnosticsIf you experience a problem with your computer, run the ePSA diagnostics before contacting Dell for technical assistance. Thepurpose of running diagnostics is to test your computer's hardware without requiring additional equipment or risking data loss. If youare unable to fix the problem yourself, service and support personnel can use the diagnostics results to help you solve the problem.Enhanced Pre-Boot System Assessment (ePSA) diagnosticsThe ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embeddedwith the BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particulardevices or device groups allowing you to:• Run tests automatically or in an interactive mode• Repeat tests• Display or save test results• Run thorough tests to introduce additional test options to provide extra information about the failed device(s)• View status messages that inform you if tests are completed successfully• View error messages that inform you of problems encountered during testingCAUTION: Use the system diagnostics to test only your computer. Using this program with other computers may causeinvalid results or error messages.NOTE: Some tests for specific devices require user interaction. Always ensure that you are present at the computerterminal when the diagnostic tests are performed.Device status lightsTable 1. Device status lightsIcon Name DescriptionPowerstatus lightTurns on when you turn on the computer and blinks when the computer is in a power managementmode.Hard drivestatus lightTurns on when the computer reads or writes data.BatterychargeindicatorTurns on steadily or blinks to indicate battery charge status.The device status LEDs are usually located either on the top or left side of the keyboard. They display the storage, battery andwireless devices connectivity and activity. Apart from that they can be useful as a diagnostic tool when there's a possible failure tothe system.NOTE: The position of the power status light may vary depending on the system.The following table lists how to read the LED codes when possible errors occur.54