Laptop dedicated GPU not activating

4.5

The high-performance graphics card is not detected or won't turn on.

Symptoms
  • GPU missing from Device Manager
  • Error Code 43
  • Only integrated graphics available
Possible Causes
  • Hardware failure
  • Disabled in BIOS
  • Power delivery issue

Step-by-Step Fix

1

Check BIOS

Ensure the discrete GPU is enabled in the BIOS settings.

2

Reinstall Drivers

Perform a clean install using DDU.

3

Hardware Reset

Disconnect battery and hold power button for 30 seconds.

When to See a Technician

If a GPU disappears from Device Manager, it's often a sign of a physical connection or power rail failure.

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