See Dell Knowledge base article How to Run a Dell Online Diagnostic Test for more information. On the boot menu screen, select the Diagnostics option and press Enter (Figure 1). Dell's online diagnostic test helps you scan the computer for issues, recommends troubleshooting steps, get automated fixes, and order replacement parts when needed. At the Dell logo, press the F12 key several times until the One Time Boot Menu appears.This is built into the BIOS and works outside of the Operating system. Read The ePSA or the Enhanced Pre-boot System Analysis test available on Dell. The Dell ePSA (Enhanced Pre-Boot System Assessment) diagnostics runs a complete suite of hardware checks on your system to assure that all the devices are in a working condition. See Dell Knowledge base article How to Run a Preboot Diagnostic Test on a Dell Computer for more information. Dell SupportAssist Pre-boot System Performance Check diagnostics Bc 1. The integrated preboot diagnostic test on a Dell Computer allows you to run diagnostics when the computer cannot boot into the Operating System to help determine if there is a hardware issue.See Dell Knowledge base article How to Run a Diagnostic Test Using SupportAssist for more information. When SupportAssist is installed, you can run diagnostics when the computer boots to the Operating System, even though you cannot access the Internet. The SupportAssist application is preinstalled on all Windows computers that are shipped out of the Dell factory.At the prompt Were color bars displayed (Y/N), press Y key to confirm. Refer to the Dell knowledgebase article BIOS Recovery options on a Dell PC or Tablet for more information. Which method you use to access the diagnostics will probably depend on the state of your computer. If the ePSA diagnostic screen does not appear, try recovering the Dell PC using the BIOS Recovery method. There are three ways to access your Dell computer, tablet, or server diagnostics. Visit our Audio and Speakers site for more information and support.When your Dell computer, tablet, or server does not seem to be working correctly, diagnostic utilities are available to help you identify a potential hardware issue. If however you are still having issues, contact Dell support. How to create a Live Ubuntu Linux USB key - Lets you test a different OS from a USB drive and rule out issues with Software.Dell Transition to Universal Windows Platform (UWP) - Deals with older driver versions being not compatible with the latest Win10 OS.No Sound or Audio When Audio Device is Connected to Audio Jack - Deals with troubleshooting the MaXXAudio Software.If you are looking for other ways in which to rule out audio issues, here are some articles that may be useful: See Dell Knowledge base article How to Run a Diagnostic Test.
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