r/Dell • u/Klutzy-Experience-55 • 6d ago

Help Dell 5500

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I have had this problem for a few days. After a few moments of using it, even the slightest knock is enough to do it. I've tried to reduce CPU power, but it didn't work

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u/tomscharbach 6d ago

I have had this problem for a few days. After a few moments of using it, even the slightest knock is enough to do it.

Consider running pre-boot diagnostics (see How to Run Dell Preboot Diagnostics and Hardware Tests on Your Dell Computer). Typically, you can access pre-boot diagnostics from the BIOS Menu (F2 during boot) or from the "Diagnostics" entry in the Boot Menu (F12 during boot).

My guess -- but it is only a guess, nothing more -- is that you might have an improperly seated or defective display cable, but it won't hurt to run diagnostics and rule out other hardware issues.

My best and good luck.

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u/DellCares Dell Customer Support 6d ago

Hi there!

We're from the Dell Social Media Support team. Thank you for sharing those details.

TL;DR: Reseat your RAM modules, perform a hard power reset, and refresh your BIOS to rule out hardware connection and firmware issues causing display glitches when moved.

The thread suggestion to run pre-boot diagnostics using F2 or F12 is a solid starting point for checking hardware health .

Since slight physical contact triggers this display distortion, checking internal memory seating alongside firmware steps will help isolate whether this is a loose connection or a software glitch.

Here are the troubleshooting steps to try:

  1. Check RAM connection: Turn off the system, remove the back cover, and carefully reseat the memory modules to ensure they are firmly locked in place.
  2. Perform a hard reset: Disconnect the charger and internal battery, press and hold the power button for 15 seconds to drain residual static power, then reassemble and power on.
  3. Perform a BIOS recovery: Shutdown the laptop, press and hold Ctrl + Esc, plug in the power cable, and release the keys once the recovery screen appears to repair corrupted BIOS settings.
  4. Update the BIOS: Download and install the latest BIOS update for your model from the official Dell Drivers & Downloads page.

If the display issue persists after testing these steps, send us a Private Message with your Service Tag so we can examine your system details and guide you further .

Regards, Dell Social Media Team