● View status messages that inform you if tests are completed successfully
● View error messages that inform you of issues encountered during testing
System board diagnostic LED indicators
The system board LED indicators provide status of the system when it is powered on, which help identify POST and hardware
issues.
For information about the different LED indicator sequences and description, see the interactive LED pattern decoder tool at
https://internal.software/blink/.
Enhanced Preboot System Assessment
If you experience an issue with the system, run the system diagnostics before contacting Dell for technical support. The purpose
of running system diagnostics is to test the system hardware without requiring more equipment or risking data loss. If you are
unable to fix the issue yourself, service and support personnel can use the diagnostics results to help you solve the issue.
Dell Embedded system diagnostics
The Dell Embedded System Diagnostics is also known as Enhanced Preboot System Assessment (ePSA) diagnostics.
The embedded system diagnostics provides options for particular device groups or devices that allow you to:
● Run tests automatically or in an interactive mode.
● Repeat tests
● Display or save test results.
● Introduce more test options for extra information about the failed devices, run a thorough test.
● View status messages that inform you whether tests are completed successfully.
● View error messages that inform you of issues encountered during testing.
System diagnostics and indicator codes
201
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