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RE: Dell XPS 8700 does not post after BIOS upgrade

Try clearing BIOS:

  1. Power off and unplug
  2. Press/hold power button for ~15 sec
  3. Open case and remove motherboard battery
  4. Press/hold power button for ~30 sec
  5. Put everything back the way it was originally: reinstall OLD video card and reinstall all RAM
  6. Check all cables and connections to make sure you didn't accidentally dislodge something when you removed the video card 
  7. Reinstall motherboard battery (right-side-up!) - good time for fresh CR2032 battery, ~$2 at discount stores
  8. Close up and see if it boots with only mouse, monitor (connected to add-in video card) and keyboard connected

If it fails to boot with everything the way it was, you'll likely need a new motherboard...



   Forum Member since 2004
   I am not a Dell employee

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