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Running ePSA (enhanced Pre-boot System Assessment) is an essential first step in troubleshooting a faulty LCD panel on a Dell TM Inspiron AIO Desktop because it allows you to conduct a comprehensive diagnostic test on the system's hardware components. During this test, the system checks the integrity and performance of critical components, including the display. By pressing the escape key, the user can regain control of the cursor, which might be necessary if the screen is unresponsive. This initial assessment can help determine whether the issue is related to hardware faults or whether it is a software or configuration problem.

Utilizing ePSA adds a systematic approach to troubleshooting, gathering meaningful information before deciding on more invasive measures, such as replacing hardware components. It can identify potential issues that may not be visibly apparent, ensuring that the technician has as much information as possible to make an informed decision about the subsequent steps to take. If a mechanical issue or cable disconnection is present, ePSA may highlight these factors, informing further investigation, which could involve checking for physical damage or booting into BIOS.

Moving to BIOS settings, looking for mechanical damage, or replacing the LCD assembly immediately without assessing the situation could lead to unnecessary time spent and costs incurred, highlighting why running