There are a few reasons why your video card might not be recognized by your computer. The first is that the driver for the video card is not installed correctly, or it may be out of date. To check the driver, open your device manager and look for the “Display Adapters” section. If the video card isn’t listed here, make sure you install the correct drivers for your video card and system.
The second reason could be related to the power supply. A video card requires power in order to work properly, so if you don’t have enough power, then the video card won’t be recognized. Make sure that your power supply can handle the wattage requirement of your video card.
The third reason may be related to the BIOS. BIOS stands for Basic Input/Output System, and it is a type of software that helps the operating system communicate with the hardware devices. Check to see if your BIOS is up-to-date with the latest version and make sure your video card is enabled in the BIOS settings.
The fourth reason could be related to the motherboard. There are certain motherboards that are designed to only accept specific video cards. Check to make sure that the motherboard and video card are compatible with each other. This can usually be determined by checking either the website of the motherboard manufacturer or the website of the video card manufacturer.
The fifth reason could be related to the connections between the video card and the monitor. Make sure that all of the cables are securely connected and try to reseat the video card, if possible. Also, check to make sure that the correct ports are being used. If you are using a VGA cable, make sure the monitor is connected to the VGA port on the video card.
Finally, the sixth reason could be related to the graphics card itself. Graphics cards are highly sensitive and can become damaged or malfunction due to dust, heat, or power surges. Make sure to keep your graphics card clean and cool and invest in a surge protector for extra protection.
In conclusion, there are a few different reasons why your video card might not be recognized by your computer. Make sure to check the driver, the power supply, the BIOS, the motherboard compatibility, the connections, and the graphics card itself, in order to diagnose and solve the issue.