There are a few potential issues that could be causing your graphics card to not be detected, and the best way to fix the problem depends on what is causing it.
1.Check your system BIOS
The first thing you should do is check your system BIOS to make sure that your graphics card is detected and enabled. To access your BIOS, you will need to restart your computer and press a certain key when prompted. This key can vary from computer to computer but is usually one of the function keys (F2, F10, or Delete) or the Escape key. Once in the BIOS, look for an option titled “video card” or something similar and make sure that it is enabled. If your graphics card is not listed in the BIOS, it may be a sign that it is not properly installed.
2.Re-Install the Graphics Card
If your graphics card is not appearing in the BIOS, then it may need to be re-installed. First, you will want to shut off your computer, unplug the power cord, and open your computer’s case. Locate the graphics card and make sure it is securely seated in its PCIe slot. If it is loose, try pushing it down firmly until it clicks into place. Once it is secure, replace the case’s side panel and reconnect the power cord. Boot up your computer and check the BIOS again to see if the graphics card is now detected.
3.Update your Graphics Card Driver
If your graphics card is detected in the BIOS, but you still have issues, then it may be due to an outdated driver. Outdated drivers can cause problems with your graphics card’s performance, so you should make sure that yours is up to date. To update your driver, go to the manufacturer’s website and download the latest version. Install the driver and restart your computer to see if it has solved the problem.
4.Try Another Monitor or Cable
Sometimes a graphics card will not be detected due to a bad monitor or cable. Try swapping out your monitor or cable to see if it fixes the issue. Alternatively, you could try connecting your monitor to another device (like a laptop) to make sure it is working properly.
5.Check the Power Supply
A lack of power can prevent a graphics card from being detected. Make sure your power supply has enough wattage to support your graphics card, and if it does not, consider upgrading it. Also, check the PCI-e power connectors to make sure they are connected and secure.
6.Try a Different PCIe Slot
It is possible that the PCIe slot itself is bad, so you might want to try swapping the card to a different PCIe slot. If this does not work, it may be a sign that the PCIe slot itself is damaged or malfunctioning.
7.Replace the Graphics Card
If none of the above steps work, then it may be time to replace the graphics card. Before buying a new one, make sure it is compatible with your motherboard and the power supply is sufficient.
Hopefully one of these solutions helps you get your graphics card detected and running properly. If none of these solutions worked, then you may have to take your computer to a professional for further diagnosis.