When your graphics card is not being detected by your system, it is likely that there is an issue with either the hardware or the software. To diagnose and fix the problem, there are several different steps that you can take.
1. Check Your Computer’s Motherboard: The first step is to check your computer’s motherboard for compatibility with your graphics card. Make sure that the card you purchased is compatible with the model of your motherboard. Also make sure that the slot you are inserting the card into is intended for graphics cards. Finally, if your computer has recently been opened up for repairs, ensure that all connections for the card are securely in place and that any covers have been correctly re-attached.
2. Update Drivers: Many times, graphics card issues can be fixed by simply updating the drivers. Having outdated drivers could cause conflicts with the card, so make sure you have the most up-to-date version of your GPU’s drivers.
3. Check BIOS Settings: The BIOS (Basic Input Output System) handles important functions of the computer. Entering the BIOS should allow you to check and change settings related to your graphics card. Check if your card is listed and enabled, as it may be disabled by default. Additionally, make sure that there are no conflicts between your card and other devices.
4. Reset Your PC: If none of the above steps fix the issue for you, try restarting your computer. This will reset all the settings back to the defaults. If the issue persists, then you may need to reset your PC to factory settings.
5. Replace the Card: If none of the above steps work, then it is possible that the graphics card itself is defective. Try replacing the card with a new one and see if it is now being detected by your system. It is also a good idea to contact customer support for the manufacturer of your card and ask them for advice.
6. Reinstall Windows: As a last resort, you may need to reinstall Windows. This should clear out any conflicts or bugs related to the graphics card. Make sure to back up all your data beforehand, since reinstalling Windows will erase everything from your computer.
These are the basic steps that you should take when trying to diagnose and fix an issue with a graphics card that is not being detected by your system. If these steps do not fix the issue for you, then it is likely that there is a hardware issue and you may want to seek professional help.