Graphics Card Not Detected? 10 Fixes to Try:
your GPU (Graphics Processing Unit) The card has stopped working for no apparent reason, or you have installed a brand new GPU, and when you turn on your computer – nothing happens.
For some reason, your computer is not detecting your graphics card. These tips may have the answer to finding out why.
1. Check Monitor Connection
The first and easiest solution is to check if your monitor connection is in order. Here’s what to do:
- Check that the monitor cable is connected to the graphics card and not the integrated GPU port on the motherboard. This is a common mistake!
- Next, make sure the monitor is set to use the correct input. For example, you might be plugged in HDMI 2 When the monitor is set to HDMI 1.
- Try different outputs on your GPU as well. It may have multiple HDMI or other outputs, one of which is the primary.
You should also double check if the monitor is in good condition if you are not sure. It is also prudent to check the cable for damage.
2. Put the Old Card Back
If you installed the new card before the problem started, put the old card back in to make sure it still works. If the old card also suddenly doesn’t work, it points to a problem other than your new GPU. If the old card works, it means you can focus on the new GPU as your target for troubleshooting.
3. Try the card in another computer (and update its firmware)
If you’re lucky enough to have access to another suitable computer, try your new GPU in that machine. If it works, it suggests an incompatibility between your computer’s motherboard and the GPU.
We’ll tackle the motherboard side of the problem shortly, but when your GPU is working in a surrogate computer, try updating its firmware to resolve known compatibility issues.
If you don’t have a surrogate computer, you may want to contact a local computer technician with a test bench to update. Check online if a new firmware update has been released. There will also be a list of fixes for each new firmware revision.
4. Is the card sitting in the correct slot?
When you’re rooting inside your computer, it’s a good idea to make sure your card is installed properly or that it hasn’t come undone in some way. In other words, is it sitting in its slot correctly? Is it in the primary PCIe slot? Are all power connectors connected correctly?
5. Does the card power up?
Most discrete GPU cards nowadays have an active cooling system with fans. So as soon as your computer starts, the fan on the card should start spinning. Many modern cards also have lights, which can be another sign that there is no power.
If neither the fan nor the light works, this may indicate that the card is not receiving power. If you have everything plugged in and the card does not turn on, it may be faulty. Refer to the section on Testing the card in a surrogate computer or contact the manufacturer.
6. Is your PSU strong enough?
Each card requires a specific amount of electricity to function. If your computer can’t provide enough power to it, it may not be detected at all.
Power requirements are mentioned in the card’s documentation and website, but that’s not the whole story. Those requirements are minimum estimates, not exact specifications.
The power available to the GPU depends on how much power the other components of your computer require. use power supply calculator To get a more accurate picture of how powerful your power supply should be. Also, keep in mind that the GPU has specific wattage requirements and requires substantial amperage.
7. Run DDU to Remove Outdated Drivers
Get back into Windows with a good card reinstall or switch your computer to its integrated GPU if it has one. Once there, download DDU, display driver uninstaller. Run the program, and it will remove every trace of your old card’s drivers.
This is a good solution even when the new card works physically but is only found in Windows as a generic GPU. Once you have cleared the old driver from the system, reinstall the problematic GPU and then install a fresh copy of its latest driver from the manufacturer’s website.
8. Check Your BIOS Settings
Sometimes the GPU is not initialized because the computer’s BIOS is not set correctly. Each computer has a different key that you need to press at boot time to enter the BIOS (or UEFI in modern computers) as it varies from computer to computer. Check your computer’s documentation for exact steps. This is usually the Delete or F2 key, but it can be anything.
In your BIOS, look for a setting to boot a computer with the card in the PCIe slot as your primary GPU. There may be other similar settings because no two BIOS menus look the same. The idea is to make sure that the computer uses the correct GPU and not the integrated one.
9. Update Your BIOS
Above, we mentioned that you should consider updating the firmware of the card if there is an incompatibility with your motherboard. You can say the same for your motherboard.
check out Should I Update My BIOS? How to check if someone is needed For the information you need to make sure your motherboard firmware is up to date.
10. Check the card for physical problems
The last trick we can provide to help you fix your unknown card problem is to physically inspect the card. Is the heatsink connected properly? Are there any screws or parts missing? Do any components on the card show scorch marks? Do some capacitors look swollen?
It’s a long shot, but if you see any visible damage, you probably won’t have any more luck with the card. Replace, take it to a technician or return it if it is still under warranty.
Hopefully, your card hasn’t been physically damaged, and one of the troubleshooting tips above got it working again.