Other causes include outdated or missing drivers, wrong BIOS settings, or even a faulty GPU. Now that you know the causes lets discuss the solutions.
1. Check Graphics Card Slot
Sometimes the graphics card isn’t properly connected in the PCIe slot, leading to detection problems. Reseating the card ensures it’s securely attached, allowing it to communicate well with the motherboard. Dust or small shifts can disrupt this connection, so carefully reinserting the card often fixes the issue.
2. Uninstall and Reinstall Graphics Drivers
Reinstalling your graphics drivers can often solve detection problems. Removing the old drivers gets rid of any broken or outdated files that might be causing issues. Installing the latest version helps your system connect properly with the GPU, making sure it is recognized and works well.
Checkout our article for detailed guide on how to reinstall graphics driver here.
3. Set your Graphics Card to Default
When the system switches to the built-in graphics, the dedicated GPU might not be used or detected. By setting your separate GPU as the main graphics processor, you make sure the system uses it for all graphic tasks, which can fix detection issues. Note: The following instructions are specific to NVIDIA graphics cards. Steps may differ for other brands. After completing these steps, close the control panel and test if the program now functions properly with the NVIDIA graphics card as the default device. Repeat these steps for other major applications as needed.
4. Check Power Supply
Making sure your GPU has enough power is important for fixing detection problems. If the power supply doesn’t give enough power to the GPU, the card might not work right or be detected by your system. Check that all power cables, especially the PCIe power connectors, are firmly connected to both the GPU and the PSU. Not enough power or a loose connection can cause the GPU to not be detected.
5. Change BIOS Settings
Changing your BIOS settings can help your PC recognize your GPU by making sure it uses the separate graphics card instead of the built-in one. Sometimes, your motherboard’s BIOS might choose the built-in graphics by default or not give the right resources to the PCIe slot where your GPU is installed.
6. Uninstall Windows Updates
Sometimes, a recent update can cause hardware recognition problems. By removing recent Windows updates, you might fix changes that mess with your GPU’s driver or system setup. Windows updates, especially optional ones, can sometimes create compatibility issues with drivers or hardware, like GPUs.
7. Restore BIOS to Default
Resetting the BIOS to default can fix any settings that stop the GPU from being detected. BIOS settings, like wrong PCIe setups, disabled slots, or conflicts with built-in graphics, can unintentionally block GPU detection. After resetting the BIOS to default, reboot your system and verify if the graphics card is now recognized.
8. Update BIOS
Updating your BIOS to its latest version can resolve detection issues, as it ensures compatibility with the newest hardware among other benefits. Note: BIOS updating is a sensitive process requiring technical know-how. If you are unsure about updating your BIOS, seek assistance from an expert. Incorrect updates could potentially lead to a non-functional computer. For detailed guides on BIOS updates for various manufacturers, follow the instructions provided in our articles linked below: Update BIOS on Lenovo: Click here. Update BIOS on Dell: Click here. Update BIOS on HP: Click here. Update BIOS on GATEWAY: Click here.
9. Reseat or Clean the Graphics Card
Dust build-up or improper seating of the graphics card can cause detection problems. Reseating the graphics card into its slot after cleaning can often resolve this issue.
10. Test the Graphics Card in Another System
Testing the graphics card in another system helps determine if the issue lies with the card itself or your current setup. If the card functions in a different PC, this confirms that the problem is likely due to your motherboard, power supply, or BIOS settings.
