10/30/2023 0 Comments Power on self test windows 10![]() ![]() RELATED: How to Enable or Disable Memory Compression in Windows 11 You don’t need to pay for anything. MemTest86 is signed by Microsoft, so it will work even on systems with Secure Boot enabled. It performs a wider variety of tests and may find issues that the included Windows test won’t. The latest releases of this tool offer a paid version with more features, although the free version should do everything you need. Continue to hold the Fn key, until you see the preboot diagnostic screen.If you’re looking for a more powerful testing tool, you can download and use MemTest86. Press and hold the Fn key and turn on the computer to enter the preboot diagnostics mode.If the screen abnormality is present in the built-in self-test mode, contact Dell Technical Support for repair options available at your location.If the screen abnormality is not present in the built-in self-test mode, see the Dell knowledge base article How to Troubleshoot Display or Video Issues on a Dell Laptop.Carefully inspect the screen for abnormalities. ![]() The screen displays multiple color bars and changes colors to black, white, red, green, and blue.Continue to hold the D key, until you see color bars on the LCD screen. Press and hold the D key and turn on the computer to enter LCD built-in self-test (BIST) mode.Ensure that the LCD screen is clean (no dust particles on the surface of the screen).Connect the AC adapter (charger) to the computer.Disconnect any devices that are connected to the computer.The LCD built-in self-test can be initiated in two ways: Method 1 If you notice screen abnormalities like flickering, distortion, clarity issues, fuzzy or blurry images, horizontal or vertical lines, color fade, bubbles, it is a good practice to isolate the LCD screen by running a diagnostic test. Dell laptops have a built-in diagnostic tool that helps determine if the screen abnormality is an inherent problem with the LCD screen of the Dell laptop, the video card (GPU), or the display settings on the computer. ![]()
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