Dell E5450 owner manual Enhanced Pre-Boot System Assessment ePSA Diagnostics

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Diagnostics

If you experience a problem with your computer, run the ePSA diagnostics before contacting Dell for technical assistance. The purpose of running diagnostics is to test your computer's hardware without requiring additional equipment or risking data loss. If you are 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) Diagnostics

The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embedded with the BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices 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 testing

CAUTION: Use the system diagnostics to test only your computer. Using this program with other computers may cause invalid results or error messages.

NOTE: Some tests for specific devices require user interaction. Always ensure that you are present at the computer terminal when the diagnostic tests are performed.

You can launch the ePSA diagnostics by two ways:

1.Power-on the computer.

2.As the computer boots, press the <F12> key as the Dell logo appears.

3.On the boot menu screen, select the Diagnostics option.

The Enhanced Pre-boot System Assessment window displays, listing all devices detected in the computer. The diagnostics starts running the tests on all the detected devices.

4.If you wish to run a diagnostic test on a specific device, press <Esc> and click Yes to stop the diagnostic test.

5.Select the device from the left pane and click Run Tests

6.If there are any issues, error codes are displayed. Note the error code and contact Dell.

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Contents Dell Latitude E5450 Page Working on Your Computer Before Working Inside Your ComputerTurning Off Your Computer After Working Inside Your Computer Recommended Tools System OverviewFront and Back View Removing the SD Card Installing the SD CardRemoving the Base Cover Installing the Base Cover Removing the BatteryInstalling the Battery Removing the Hard-Drive AssemblyPage Installing the Hard-Drive Assembly Removing the Memory Installing the MemoryRemoving the Keyboard Trim Installing the Keyboard Trim Removing the KeyboardInstalling the Keyboard Removing the PalmrestBase cover Battery Keyboard trim Installing the Palmrest Removing the SmartCard Reader BoardPage Installing the SmartCard-Reader Board Removing the USH BoardInstalling the USH Board Removing the Finger-Print Reader BoardInstalling the Finger-Print Reader Board Removing the LED BoardInstalling the LED Board Removing the Power-Connector PortInstalling the power-connector port Installing the Wlan Card / WiGig Card Removing the Wlan Card / WiGig CardInstalling the Wwan Card Removing the Wwan CardRemoving the Display-Hinge Brackets Installing the Display-Hinge Brackets Removing the Display AssemblyPage Installing the Display Assembly Removing the Display BezelInstalling the Display Bezel Removing the Display PanelPage Installing the Display Panel Removing the Display HingesInstalling the Display Hinges Removing the CameraInstalling the Camera Removing the eDP CableInstalling the eDP cable Removing the Coin-Cell BatteryInstalling the Coin-cell Battery Removing the System BoardDisplay assembly Installing the System Board Removing the Heatsink AssemblyInstalling the Heatsink Assembly Removing the Speakers Installing the Speakers System Setup Options PS2 Video Page KEK Performance Page Post Behavior Wwan Maintenance Technical Specifications UMA USB Feature Specification Active Area Axis 99.50 mm 53.00 mm Battery Environmental Diagnostics Enhanced Pre-Boot System Assessment ePSA DiagnosticsDevice Status Lights Battery Status Lights Contacting Dell