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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