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How to Fix GPU No Signal (STEPS)

Why is my GPU detecting no signal?

A “No Signal” error indicates that your video card is not sending any signal to your monitor. 


Although a faulty video card can cause a GPU no signal error, if you have already replaced the viedo card and are still receiving the error, the issue is caused by another component. 


Cable Error

Examine the cable that connects your video card to your monitor for tightness. Check both ends of the cable if it came out of the socket while moving the monitor or computer case. 


Examine the cable’s length for signs of physical damage that could be causing the problem. 

Check the connector pins to make sure none are bent or broken.


Monitor Error 

If you’ve changed the video and are certain that the cables aren’t to blame, the issue could be with the monitor. 


Wrong Video Mode 

You can use various input sources on monitors and HD TV’s to connect to the graphic cards. 

If the monitor lets you choose an input source, ensure it matches the cable you’re using to connect to the computer. 


Video Card Slot Error 

If your video card is not properly seated or is inserted into the wrong slot on your motherboard, it will not function properly. 

Check the manual for your motherboard to ensure that the slots are compatible with the video card. 


How To fix GPU No Signal

Now that you know why your screen might be displaying a “no signal error,” here are the solutions for how to correct each error.


Cable Error

Changing your cables is the best and safest option if you’re facing a cable error.

A faulty cable may cause intermittent problems, such as incorrect color display, but there will be no signal if the damage is severe enough. 


Monitor Error

Connect your computer to a second monitor to view the results. You might be able to connect your video card to a television if you don’t have another computer monitor. 

Most televisions have inputs like VGA, DVI, and HDMI for connecting your computers. If you get the error again when connecting to another display device, you can proceed to troubleshoot other computer components.


Wrong Video Mode

This might be the root of the problem if your display does not automatically recognize the input source you are using.

Consult the user handbook for your monitor for advice on changing the display mode.


Video Card Slot Error 

The video card might have been destroyed if you pressed it into the slot. Check sure the connection from the power supply unit is connected to your video card.


To work effectively, many modern video cards require PCI-E power connectors to be attached.

Use your motherboard’s integrated video card to check whether the issue is with the cable or the display.


GPU is detecting no signal


Why Is GPU Not Outputting Video?

Various issues of varying difficulty levels can cause a dark screen issue. Outside of the ones cited above, here’s why your GPU may not be outputting video.

If one of the slots is broken, you can put the CPU card in another. 


In order to fix this error, you will have to switch the GPU slot – by following these steps:

  1. Remove your case’s back cover.
  2. Turn on the computer and check the graphics card by looking at its fan to ensure it is operational.
  3. If the graphics card isn’t working, the slot could be blamed.
  4. Turn your computer off and open the case to remove the graphic card.
  5. Look for another slot, put the card in that slot, and see if anything changes.

Sometimes, when you replace your graphics card, you will receive an error message stating that the graphics card could not be detected. 


You can fix these issues by using the following steps:

  1. Enter “Control Panel” into the Windows Search Box to access it.
  2. Find and select “Device Manager” from the list of options.
  3. Double-click on “Display Adapters” to reveal the device listed as the driver.
  4. To open a page with multiple tabs, click on the device.
  5. Click “Driver” to find the driver version, which indicates whether or not the driver has been updated.
  6. If you can’t tell if the driver is the most recent version by looking at the version number, you can update it to get the most recent version.
  7. To finish the update, follow the on-screen prompts.


Why Does GPU Say No Signal, But Fans Are Spinning?

If you find your GPU showing you a no signal error but the fans are functional and spinning, you will most likely need to reseat the card in the slot.

Reseating the memory is a common solution to the no video output problem that says no signal.


To fix this issue all you need to do is:

  1. Remove each memory stick, clean its contacts, blow the slot, reinstall, and repeat.
  2. Also, ensure that the memory slot lever is up and that memory sets are in the same color-coded slots.
  3. Repeat for the graphics card.
  4. Check that all PCI-E cables are securely connected to the graphics card
  5. After that, unplug the monitor cable and power cord for about a minute
  6. It will reset the monitor.


Why No Signal FromGPU And The Fan Not Spinning?

No signal GPU error is one thing and the fans not spinning another, when both occur at the same time you have to get to the root of the problem.

  1. If you find your GPU with no signals and the fans are not spinning, you should check if your graphics card is properly connected to your power supply. 
  2. If you have a graphics card that does not require a PCIe connectionfrom your power supply,such as the Gigabyte GeForce GTX 1650 OC,and the fans are not spinning, and there is no GPU signal, then something else is wrong.
  3. If the fans on your graphic card no longer spin, you should remove the card and clean it.
  4. If you have a old graphics card installed and the fans don’t spin anymore, you may be able to extend their life by re-oiling the fan bearing.
  5. If you have an older graphics card whose fans aren’t spinning, it’s probably time to replace it.


Why GPU No Signal After Boot

If there are no signals after a system boot then you may have a power problem. 

Just because the fans are spinning, and your motherboard light is illuminated does not imply that you have enough power in the power supply to run the machine. 


Possible solutions to consider:

  1. Power supplies can die slowly and still appear to be functional, double check to ensure the connection is stable.
  2. If you have a power supply that is at least 5 years old, you may want to swap it for a new one because power supplies can get weaker overtime.
  3. You could also try a different monitor or test your old monitor on a different computer.


Why GPU turns on but has no signal? 

If you find that your GPU has turned on but you’re still receiving a no signal error, you should:

  1. Check if the GPU and 8-pin and 24-pin power connections are fully seated in the motherboard.
  2. Try starting up with only the mobo and GPU power connections, a single stick of RAM, and the power switch header connector attached. If you receive a signal, start plugging everything else in one by one.
  3. Check that the DVI/VGA or HDMI cable is snug at both the display and the computer’s back. To rule out a defective DVI/VGA or HDMI cable, try testing it.


Why Is No Signal Detected When The Cable Is Connected To GPU?

If you still face a “no signals error” despite your cable being connected to the GPU, it can be due to one of the many reasons listed above.


In most cases, the most common defect can be centered around the cable itself.


  1. The cable may be faulty, broken or in need of replacement.
  2. Examine your cables and make sure they are all in a good condition and nothing is hanging loose.
  3. If you find a cable that is exposing wire or not fitting properly in its slot then you will need to change it out for another cable in order to get rid of the no signal error.


Why No signal From GPU Or Motherboard?

When you receive a no signal error from your GPU or motherboard, chances are the issues may be in the RAM. 



  1. Without RAM, your computer cannot work, resulting in a blank screen when you switch it on or a no signal error.
  2. If you suspect this is the source of your display issue, consider reseating or replacing the RAM.


GPU No Display After A Few Minutes

If your GPU shows no signals after a few minutes:

  1. Check that your power supply can manage the power usage and that the card is properly inserted.
  2. You should also check that the GPU’s fan is spinning and that the card, along with any other PC components, is not overheating. Use software to verify this.


AMD Radeon graphics card has no signal 

If you have an AMD Radeon graphics card that is displaying the no signal error:

  1. Your computer may not be able to identify the AMD Radeon graphics card.
  2. You should also check if it has been fitting properly it is possible that it’s not correctly connected to your PC.
  3. An incompatible driver might cause the GPU problem, but it could also be a hardware issue. The remedy to this problem is to remove the graphics card and get the most recent software from the vendor.


NVIDIA Graphics Card No Signal

The NVIDIA graphics card not identified error might occur for several reasons:

  1. If you are running an outdated or incorrect graphics driver you may end up with a no signals error. As a result, you should upgrade your graphics driver to see if it resolves your issue
  2. BIOS conducts hardware initialization and jumpstarts programs during your computer’s starting process. Therefore, you may try updating our BIOS to see whether it resolves the NVIDIA card not showing up in Device Manager in Windows 10/8/7.


GPU No Signal After Windows Logo

A defective visual card driver might cause the “no signal” notice that appears after the Windows logo. 


Follow the instructions below to remove and reinstall video card drivers:

  1. Start the computer again
  2. Start pressing the F8 key on the keyboard once the machine has passed the first setup screen
  3. It will display the Advanced Boot Options to yoo
  4. Enter Safe Mode
  5. The computer will display the Desktop with a reduced resolution after loading some basic drivers.
  6. While in Safe Mode, remove and then reinstall the video card driver
  7. If you require assistance installing the video card driver, please respond with the Device instance ID of the video card driver.


To obtain the video card’s Device instance ID, right-click the Computer/My Computer icon on the Desktop, pick Manage and go to Device Manager on the left, then go to Display Adapters at the right pane.

Right click on the devices that will be listed and choose Properties, then Details, and finally Device Instance ID in the list. Keep this Device Instance ID handy.



Ernie Lo

Ernie Lo is a qualified web designer and web developer. He works as an IT support technician and website manager at Benleigh Vending, and he also fixes vending machines.

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