In such a situation, we highly recommend you to take the system to a professional. But if you want to make your hand dirty, and solve the problem on your own, here are the steps you need to follow.
- First off, turn off your PC and open its back cover.
- Cross-check the motherboard and graphics card slot and ensure that everything is working fine.
- All you have to need to do is to turn on your system and check whether the fan of RTX 3060, 3070, or 3080 is running or not.
- If the fan isn’t running, then it’s an indication that a particular slot has been damaged due to some reason.
- Turn off your system, remove the graphics card from that slot and insert another one.
- Now, check if the problem is solved or not.
If not, the only option left for you is to take your system to a professional and get the slots repaired.
Fix 2: Download Latest Nvidia Drivers
If the graphics card slot is fine, and the fan was running, then it indicates that there’s some other reason causing the problem. In such a situation, the very first thing you should try is to download the latest Nvidia drivers. It might be the case that the current drivers have been corrupted due to some reason. The only way to fix it is by downloading the latest driver update. But before downloading the latest update make sure to uninstall all the previous drivers (Nvidia) that you have. So, here are the steps you need to follow.
- Visit the Nvidia Driver download page.
- Enter the details to identify the appropriate driver for your Nvidia product.
- Click on Search.
- Select “Download” start the downloading process of the latest driver for your GPU.
Once done, install the driver. Restart your PC, and check if the problem is fixed or not. If yes, you are good to go. However, if it still persists, move on to the next workaround.
Fix 3: Set RTX 3060, 3070, or 3080 to Default
Facing RTX 3060, 3070, or 3080 not detecting a second monitor can be solved just by setting the graphics card as default. So, here are the steps you need to follow to set NVIDIA GeForce RTX 30-Series GPU as your default graphics.
- Right-click on the blank screen and select “Nvidia Control Panel”.
- Tap on the “3D Settings” option present at the left panel of the Nvidia window.
- Click on “Manage 3D Settings”.
- Tap on “Program Settings”.
- Click on the drop-down arrow present under “Select the preferred graphics processor for this program” and choose “High-performance NVIDIA processor”.
That’s it. Close the window, and restart your PC. Check if the problem is fixed or not.
Fix 4: Check for Weak Power Supply
If you are among those who are installing an external GPU for the first time and facing a “not detecting” problem then the main reason can be a weak power supply. A weak power supply will not be able to provide enough power. Even if your GPU is running, it definitely doesn’t indicate that it is getting enough power supply.
The RTX 3060, 3070, or 3080 requires a 750W power supply to run efficiently. In case the power supply doesn’t meet the minimum requirement asked by the GPU, you need to go for a different power supply.
Fix 5: Enable Graphics Card
You need to have the GPU enabled in the Device Manager settings so that everything can run efficiently. So, here are the steps you need to follow to enable RTX 3060, 3070, or 3080 on your system.
- Press the Windows key to open the Start Menu.
- In the search bar, type Device Manager and press enter.
- The Device Manager window will pop up.
- Double click on Display Adaptors expands it.
- Now right click on the GPU and properties.
- In the properties window, go to the “Driver” section.
- Click on “Enable” and then “OK”.
Now, restart your system and check if the problem is fixed or not.
Fix 6: Use CMD Commands
RTX 3070 or 308 not detecting the second monitor problem can be solved by using the command prompt. So, here are the steps you need to follow to rid of the problem.
- Open Command Prompt on your system in administrator mode.
- Type the below-mentioned command and press enter to execute it.
bcdedit /set pciexpress forcedisable
Command Prompt will take a few seconds to execute the command. Once done, restart the system and check if the problem is fixed or not.
Fix 7: Update System BIOS
Similar to applications and drivers, it’s important to keep on updating the BIOS. An updated BIOS ensures that the motherboard can run efficiently with the new hardware. And as in different reports, many users were able to get rid of RTX 3060, 3070, or 3080 just by updating the system BIOS.
Updating BIOS is undoubtedly a very dangerous procedure, as any wrong move can completely crash your system. So, we recommend you ask a professional to update your system BIOS. However, if you want to do it on your own, you can go through the procedure mentioned in your motherboard manual, different motherboard has different BIOS updating process.
Final Words
This was how to fix RTX 3060, 3070, or 3080 not detecting the second monitor problem. Let us know which of the above-mentioned method helped you in solving the problem. You can also share any other workaround you are aware of that will be helpful in the situation.
