PC Switches Off with Dadadada Sound Loop

First reported on r/techsupport on June 26, 2026.

Users are reporting that their PC is switching off with a dadadada sound loop. The issue is causing frustration for those who rely on their PC for work or personal use.

What it looks like

  • PC switches off
  • Dadadada sound loop

How to fix it

  1. Restart the PC.
  2. Check the power cord and make sure it's properly connected.
  3. Open the BIOS settings.
  4. Check the power settings and ensure they are set to default.
  5. Save changes and exit the BIOS settings.
  6. Check if the issue persists.

Affected products

  • PC

Sources

Search terms covered: pc switches off with dadadada sound loop, pc not responding