Dell D08S 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.

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 is displayed, 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 Regulatory Model D08S Regulatory Type D08S001 Page Contents Diagnostics Before Working Inside Your Computer Working on Your ComputerAfter Working Inside Your Computer Turning Off Your ComputerPage Page Recommended Tools Removing and Installing ComponentsSystem Overview Removing the Cover Installing the Cover Removing the Front Bezel Installing the Front BezelRemoving The Expansion Card Page Removing the Optical Drive Installing The Expansion CardRemoving the Drive Cage Installing the Optical DriveInstalling the Drive Cage Removing the Hard Drive Removing the Speaker Installing the Hard DriveMemory Module Guidelines Installing the SpeakerRemoving the Memory Installing the MemoryRemoving the System Fan Removing the Power Switch Installing the System FanInstalling the Power Switch Removing the I/O Panel Removing the Power Supply Installing the I/O PanelPage Page Removing the Coin-Cell Battery Installing the Power SupplyRemoving the Heatsink Assembly Installing the Coin-Cell BatteryRemoving the Processor Installing the Heatsink AssemblyRemoving the Intrusion Switch Installing the ProcessorInstalling the Intrusion Switch System Board Components Removing the System Board Page Installing the System Board Boot Sequence System SetupNavigation Keys System Setup Options COM1 Video Computrace Service from Absolute Software KEK Performance Post Behavior When Lookup Method is set to Static IP Updating the Bios System and Setup Password Clearing Forgotten PasswordClearing Cmos Assigning a System Password and Setup Password Disabling a System Password Page Enhanced Pre-Boot System Assessment ePSA Diagnostics DiagnosticsPage Power LED Diagnostics Troubleshooting Your ComputerBeep Code Error MessagesPage DIMM1 Page Page Technical Specifications Communications Power Page Contacting Dell