Why Is GPU Not Detected in Device Manager?

Hey there! Are you a PC gamer, content creator, or computer user with a dedicated graphics card? If so, you might have experienced the issue where your GPU is not detected in Device Manager. This problem can be highly frustrating and significantly impact your computer’s performance. But fear not! In this blog, we’ll explore some possible reasons why your GPU may not be detected in Device Manager and provide you with some sneaky solutions to fix the issue. Whether it’s due to faulty hardware, power supply issues, or BIOS settings, we’ll guide you through the troubleshooting process to help you get your GPU back up and running. So let’s dive in, shall we? 

Why Is GPU Not Detected in Device Manager?

There could be several reasons why a GPU is not detected in Device Manager. Here are a few possible causes:

GPU Not Detected in Device Manager

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  • Driver Issues: First off, it could be because of driver issues – if the GPU driver is missing or corrupted, the GPU won’t be detected. So, update or reinstall the driver for your GPU and see if that helps.
  • Power Supply Issues: Another issue could be related to power supply. It may not be detected if the GPU doesn’t get enough power. Check if the power supply is connected correctly and provides enough juice for the GPU to function properly. 
  • BIOS Settings: Sometimes, the GPU may be disabled in the BIOS settings. Check the BIOS settings and enable the GPU if it is disabled.
  • Faulty Hardware: It is also possible that the GPU is defective or damaged, in which case the system may not detect it. Ensure the GPU is correctly connected to the motherboard and check if it is damaged. Who knows, maybe you spilled something, or your pet chewed on it? 

1. Fix the Faulty Hardware

One of the major causes of GPU not being detected is faulty hardware. One way to fix that is by following these steps to diagnose and fix any issues related to faulty hardware that might prevent the GPU from being detected in Device Manager.

  1. Check the physical connection: To get your GPU up and running, first check that it’s chilling properly in the PCIe slot and that all the power cables are correctly plugged in.
  2. Test the GPU in a different system: If that doesn’t work, try testing the GPU in another method to see if it’s being picked up. If it’s not being detected there, the issue is likely with the GPU itself and might need to be swapped out.
  3. Check the PCIe slot: If the GPU is still not detected in another system, check if the PCIe slot is working by seeing if another PCIe device is detected in the same slot.
  4. Check the power supply: You can start by ensuring that the power supply is sufficient for the system and that the GPU receives enough power. A power supply that is not functioning correctly can be the reason for the GPU not being detected.

2. Fix the Driver Issues

If the GPU is not being detected due to driver issues, you can follow these steps to resolve the issue:

  1. Press the Windows key + X, then select Device Manager from the list. device manager windows 11
  2. Once there, find the Display Adapters section and locate your GPU. If you see an exclamation mark (!) subsequent to the GPU, there’s a problem with the driver. 
  3. To fix it, right-click on the GPU and select Update driver from the context menu. 
  4. Then, click on Search automatically for updated driver software and wait for the system to find and install the latest driver.
  5. Restart your system once the driver is installed so that the changes can take effect. After restarting your computer, open Device Manager to check if the GPU is detected.
  6. If the GPU is still not detected, you can try uninstalling the current driver by right-clicking on the GPU and selecting Uninstall device from the context menu. 
  7. Once the driver is uninstalled, restart your computer and then reinstall the driver from the manufacturer’s website.
  8. Once the driver is reinstalled, you can test the GPU by running a benchmark or playing a game that uses the GPU to see if it’s working correctly.

These are some steps to resolve driver issues that prevent the GPU from being detected in Device Manager. But if the problem continues, consider seeking help from a professional or contacting the manufacturer for further assistance.

3. Fix the Power Supply Issues

If the GPU is not being detected due to power supply issues, you can follow these steps to resolve the issue:

  • Firstly, ensure that the power supply cables to the GPU are securely and properly connected. Next, check for loose or disconnected wires and reconnect them if necessary.
  • Next, check if the power supply wattage is sufficient for the GPU. The GPU may not be detected if the power supply wattage is insufficient. You can refer to the label on the power supply unit to check the wattage. Remember, the power supply is crucial for the GPU to work correctly. GPU power supply
  • You should consider replacing your wimpy power supply with a more robust one. You can easily purchase a new one online or in a hardware store with a higher wattage rating.
  • After you’ve upgraded your power supply, make sure to test the GPU to see if it’s performing correctly. You can accomplish this by running some benchmarks or playing a graphics-intensive game.
  • Finally, check if the GPU is detected in Device Manager after restarting your computer. If it is, congratulations! You’ve successfully upgraded your computer’s power supply and GPU.

You’re better off taking matters into your own hands and overclocking your GPU to bypass any power supply issues. And if that doesn’t work, get a bigger power supply and watch as your graphics card runs like a dream. Who needs professional help when you have a DIY attitude? Just kidding, if the issue persists, please seek help from a professional or contact the manufacturer for further assistance.

4. Fix BIOS Settings

Modify BIOS Settings

Modifying the BIOS settings to enable PCIe and disable integrated graphics is simple. Here are the steps you can follow:

To enable PCIe setting in BIOS Gigabyte:
  1. Reboot your system and press the “Del” key on your keyboard as the system reboots to enter the BIOS settings.
  2. Once in the BIOS menu, navigate to “Peripherals” and press “Enter.”
  3. Find “Initial Display Output” and press “Enter.”
  4. Select the “PCI” slot where your GPU is installed.
  5. Save your changes and exit the BIOS.
To disable integrated graphics:
  1. Restart your system and press “F2 + Delete” to enter the BIOS.
  2. Navigate to “Chipset Configuration” using the arrow keys on your screen.
  3. Select “Integrated Graphics” from the options menu.
  4. When a pop-up dialog box appears, choose “Disabled.”
  5. Save the settings and exit the BIOS.

Following these steps, you can modify your BIOS settings to enable PCIe and disable integrated graphics, which can help detect your GPU in Device Manager.

5. Update the BIOS

If none of the previous stuff worked to fix the GPU detection issue, you could try updating the BIOS. That might make the card compatible with the new BIOS version. Here’s how to update your BIOS:

  1. First, turn on your PC because updating the BIOS requires the computer to be powered on.
  2. Then, press the key combination “Windows + R” to open the Run dialog box.
  3. In the Run text field, type “msinfo32” and hit “Enter.”
  4. A pop-up window will appear, and you can check which BIOS version you currently use there.
  5. Now, it’s time to visit the manufacturer’s website to check for any available upgrades for your BIOS.
  6. If there is, download the latest version of the BIOS from the manufacturer’s website.
  7. After the download is complete, install the latest version of the BIOS.
  8. Finally, after the installation is complete, restart your PC and hope for the best!

You know, it’s not just some small task; many things can go wrong! If you’re not careful, you could completely break your computer! That’s the risk you have to take if you want to fix that pesky GPU detection issue. Just follow the instructions as carefully as possible and avoid interrupting the process. 


A GPU not detected in Device Manager can annoy computer users. Fortunately, there are a few troubleshooting steps that you can follow to fix the problem. These steps may include fixing faulty hardware, power supply issues, adjusting BIOS settings, or resolving driver issues. You can get your GPU back to working by following the discussed solutions. Always take caution when troubleshooting hardware and seek professional help if necessary. With the right tools and knowledge, you can overcome this problem and enjoy your computer’s enhanced graphics capabilities.

How can I check if my GPU is faulty? 

One way to check if your GPU is faulty is to test it in a different system to see if it is detected. You can also check the physical connections, power supply, and PCIe slot to see if there are any issues.

Can outdated drivers cause GPU detection issues? 

Yes, outdated drivers can cause GPU detection issues. Make sure to keep your drivers up to date to avoid any problems.

Can disabling integrated graphics fix GPU detection issues?

Disabling integrated graphics in BIOS settings can fix GPU detection issues.

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