Changing the primary display adapter in BIOS can be useful when your computer has multiple graphics devices, such as an integrated GPU and a dedicated graphics card. By selecting the correct primary display adapter, you can control which graphics device the motherboard initializes first when the computer starts.
This setting is particularly useful when you install a new graphics card, troubleshoot a display problem, use multiple GPUs, or want your dedicated GPU to be the main graphics device instead of the integrated graphics processor.
However, BIOS interfaces and terminology vary between motherboard manufacturers. The option may be called Primary Display, Primary Graphics Adapter, Initiate Graphic Adapter, Initial Display Output, or something similar.
In this guide, you will learn how to change the primary display adapter in BIOS, what the available options mean, and what to do if the desired setting is not available.
What Is the Primary Display Adapter?
The primary display adapter is the graphics device that the motherboard initializes as the main video output during the boot process.
A modern computer may have more than one graphics device. For example, a desktop PC can have :
For example, if your processor has integrated graphics and you install an NVIDIA GeForce graphics card, the motherboard may allow you to choose whether the system starts with the integrated GPU or the PCIe graphics card.
Changing this setting does not normally change the graphics driver used by Windows. Instead, it determines which graphics device is initialized as the primary display adapter during startup.
Why Change the Primary Display Adapter in BIOS?
There are several reasons why you might need to change the primary display adapter.
Before Changing the Primary Display Adapter
Before entering the BIOS, there are a few things you should check.
First, identify the graphics devices installed in your computer. If you have a dedicated graphics card, make sure it is properly installed in the PCIe slot.
Also check where your monitor cable is connected.
If you have a dedicated graphics card installed, the monitor should generally be connected to the video output on the graphics card when you want to use that GPU.
For example, an NVIDIA or AMD graphics card may provide HDMI and DisplayPort outputs. The motherboard may also have HDMI or DisplayPort outputs connected to the integrated graphics.
These ports are not necessarily interchangeable.
If you select the dedicated GPU as the primary display adapter but leave the monitor connected to the motherboard's video output, you may not get the expected result depending on the motherboard and BIOS configuration.
It is also recommended to note the original BIOS settings before changing anything. This makes it easier to restore the previous configuration if necessary.
How to Enter BIOS or UEFI
The first step is to enter your computer's BIOS or UEFI firmware settings.
Restart your computer and repeatedly press the appropriate BIOS key while the computer is starting.
Common BIOS keys include :
For many desktop motherboards, Delete or F2 is commonly used.
Some laptops use F2, F10, Esc, or another manufacturer-specific key.
If Windows starts normally before you can enter the BIOS, restart the computer and try pressing the key earlier during startup.
Enter BIOS Through Windows
If you have difficulty pressing the BIOS key at startup, Windows may also provide a way to access UEFI firmware settings.
In Windows 11, you can open :
Settings → System → Recovery → Advanced startup → Restart now
After the computer restarts, select :
Troubleshoot → Advanced options → UEFI Firmware Settings → Restart
The computer should then restart directly into the UEFI firmware interface.
The exact menus can vary depending on your computer manufacturer.
How to Change the Primary Display Adapter in BIOS
Once you are inside the BIOS or UEFI interface, look for a menu related to graphics, chipset, PCIe configuration, or advanced settings.
The exact location depends on your motherboard.
A common procedure is as follows.
Step 1: Enter Advanced BIOS Mode
Some motherboards initially open in an Easy Mode or simplified interface.
If available, switch to Advanced Mode.
This is often done by pressing a key such as F7, although the exact key depends on the motherboard manufacturer.
Step 2: Find the Graphics Configuration Settings
Look through menus such as :
Step 3: Locate the Primary Display Setting
Look for an option with a name similar to :
Step 4: Select the Desired Graphics Adapter
Depending on your motherboard, you may see options such as :
IGD
This usually refers to the integrated graphics device.
PEG
PEG generally refers to a PCI Express graphics device. On many desktop motherboards, this corresponds to a dedicated graphics card installed in a PCIe slot.
PCI
This option may refer to older PCI graphics hardware or a specific PCI-related display configuration.
Auto
The motherboard automatically determines which graphics device to initialize.
If you want your dedicated PCIe graphics card to be the primary adapter, selecting PEG is commonly the appropriate choice on systems that use this terminology.
If you want to prioritize integrated graphics, select IGD, assuming your processor and motherboard support integrated graphics.
Step 5: Save the Changes
After selecting the desired adapter, save the BIOS configuration.
A common shortcut is :
F10 → Save Changes and Exit
However, the exact key can vary.
Confirm the changes when prompted.
The computer will restart and attempt to initialize the selected graphics device.
Understanding Common BIOS Graphics Options
The terminology used by BIOS manufacturers can be confusing.
Here is what some common options generally mean.
Selecting IGD tells the system to prioritize the graphics processor integrated into the CPU, assuming the processor supports integrated graphics.
For example, some Intel Core processors and AMD processors with integrated graphics can use this option.
This is commonly used for dedicated graphics cards installed in a PCI Express x16 slot.
If you have an NVIDIA GeForce or AMD Radeon graphics card installed in the primary PCIe slot, PEG is often the option you want.
This option is less common on modern systems because modern dedicated graphics cards normally use PCI Express rather than conventional PCI.
For many computers, Auto works correctly without requiring manual configuration.
However, manually selecting IGD or PEG can be useful when troubleshooting or when you specifically want to control the primary display device.
How to Set a Dedicated GPU as the Primary Display Adapter
If your goal is to make a dedicated graphics card the primary display adapter, the general procedure is :
Open Device Manager and expand :
Display adapters
Your dedicated graphics card should appear in the list if its driver and hardware are functioning correctly.
You can also use Windows Task Manager to check GPU activity.
Press : Ctrl + Shift + Esc
Then select the Performance tab and look for the available GPU devices.
How to Set Integrated Graphics as the Primary Display Adapter
If you want to prioritize the integrated GPU, the procedure is similar.
Enter BIOS and locate the primary display option.
Select :
IGD, Integrated Graphics, iGPU, or the equivalent option provided by your motherboard.
Save the BIOS configuration and restart the computer.
If your motherboard has a video output such as HDMI or DisplayPort, connect your monitor to the appropriate motherboard video output.
Keep in mind that the integrated graphics must be supported by both the processor and motherboard.
A desktop processor without an integrated GPU cannot provide video output through the motherboard's display ports.
What If the Primary Display Adapter Option Is Missing?
Not every BIOS provides a manually selectable primary display adapter.
Some modern motherboards automatically manage graphics initialization.
If you cannot find an option called Primary Display, search for related terms such as :
Another possibility is that the motherboard automatically prioritizes the dedicated graphics card when one is installed.
In that case, there may be no reason to manually change the setting.
What to Do If the Computer Has No Display After Changing BIOS Settings
Changing graphics settings incorrectly can sometimes result in a black screen.
Do not immediately assume that the graphics card is damaged.
First, check where the monitor cable is connected.
If you selected the dedicated GPU as the primary display adapter, connect the monitor directly to the dedicated graphics card.
If you selected integrated graphics, connect the monitor to the motherboard's video output, provided your CPU supports integrated graphics.
If you still cannot get a display, you may need to reset the BIOS or CMOS.
Reset the BIOS or CMOS
The exact procedure depends on your motherboard.
Common methods include :
A CMOS reset normally restores BIOS settings to their default configuration.
After resetting the BIOS, you may need to reconfigure other settings that you previously customized.
Primary Display Adapter vs Windows Default GPU
It is important to understand that the BIOS primary display adapter and Windows' preferred GPU are not exactly the same thing.
The BIOS setting determines which graphics device is initialized as the primary display device during the early boot process.
Windows can then manage graphics devices independently.
For example, a system may use a dedicated NVIDIA GPU as the primary display adapter while Windows applications can still be configured to use a particular GPU.
Windows 11 and Windows 10 provide graphics preferences under :
Settings → System → Display → Graphics
From there, supported applications can be assigned a preferred graphics performance mode.
Therefore, changing the BIOS primary display adapter is not always necessary if your goal is simply to make a particular application use a dedicated GPU.
Common Problems When Changing the Primary Display Adapter
Several problems can occur after changing this setting.
Black Screen
A black screen can happen if the selected graphics device does not provide a working video output.
Check the monitor cable, graphics card power connections, and display input source.
Integrated Graphics Not Available
If you cannot select integrated graphics, your processor may not have an integrated GPU.
Some desktop CPUs are designed to work only with a dedicated graphics card.
Dedicated GPU Not Detected
If the dedicated graphics card does not appear, make sure it is properly seated in the PCIe slot.
Also check whether the required PCIe power connectors are connected.
BIOS Automatically Reverts to Another Option
Some motherboards automatically change graphics settings depending on installed hardware.
A BIOS update can also modify the behavior or available options.
If the setting repeatedly changes, check the motherboard documentation and BIOS version.
Should You Disable Integrated Graphics?
You do not necessarily need to disable integrated graphics when using a dedicated graphics card.
Many systems can operate with both graphics devices enabled.
Keeping integrated graphics enabled can sometimes be useful for troubleshooting, additional display outputs, or specific workloads.
If your motherboard provides an option such as Integrated Graphics, iGPU Multi-Monitor, or IGD Multi-Monitor, read its description before changing it.
Disabling integrated graphics may remove the motherboard's video output until the setting is restored.
For most users, selecting the desired primary display adapter is safer than disabling another graphics device unnecessarily.
Tips for Choosing the Correct Primary Display Adapter
When deciding which graphics device should be primary, consider how you use your computer.
For a gaming PC with a dedicated graphics card, the PCIe graphics card is usually the logical primary display device.
For an office PC that relies on integrated graphics, IGD is generally appropriate.
For troubleshooting, testing both options can help determine whether a graphics problem is related to the integrated GPU, dedicated GPU, monitor, cable, or motherboard configuration.
Also remember that BIOS menus are manufacturer-specific. Two motherboards using the same chipset may still have different BIOS interfaces and terminology.
Final Thoughts
Changing the primary display adapter in BIOS is relatively straightforward once you understand the terminology used by your motherboard.
In general, enter the BIOS or UEFI firmware, locate the graphics configuration section, find the Primary Display, Initial Display Output, Primary Graphics Adapter, or similar option, and then select the desired graphics device.
For a dedicated PCIe graphics card, the setting is often called PEG or PCIe. For integrated graphics, it may be called IGD, iGPU, or Integrated Graphics.
After changing the setting, save the BIOS configuration and restart the computer. Make sure the monitor cable is connected to the correct video output.
If the option is missing or the computer stops displaying an image after the change, check the motherboard manual and consider restoring the BIOS to its previous configuration or resetting the CMOS.
Most importantly, remember that the BIOS primary display setting controls graphics initialization during startup. It does not necessarily determine which GPU every Windows application will use. For application-specific GPU selection, Windows graphics settings and the GPU manufacturer's software may provide additional controls.
With the correct BIOS configuration, you can make your integrated or dedicated graphics adapter the preferred display device and ensure that your computer initializes the graphics hardware you actually want to use.
Related Posts :
Frequently Asked Questions (FAQ)
How do I change the primary display adapter in BIOS?
To change the primary display adapter in BIOS, restart your computer and enter the BIOS or UEFI settings. Find an option such as Primary Display, Initial Display Output, or Primary Graphics Adapter, then select the desired graphics device. Save the changes and restart the computer.
What BIOS setting controls the primary graphics adapter?
The setting that controls the primary graphics adapter can have different names depending on the motherboard. Common names include Primary Display, Primary Graphics Adapter, Initial Display Output, Initiate Graphic Adapter, and Primary GPU.
How do I make my dedicated GPU the primary display adapter?
Enter the BIOS and look for the graphics configuration settings. Select PEG, PCIe, or a similar option that represents the dedicated graphics card. Save the changes and connect your monitor to the video output on the dedicated GPU.
What does PEG mean in BIOS graphics settings?
PEG usually stands for PCI Express Graphics. In many desktop motherboards, the PEG option is used to prioritize a dedicated graphics card installed in a PCI Express slot as the primary display adapter.
What does IGD mean in BIOS?
IGD generally stands for Integrated Graphics Device. Selecting IGD in the BIOS usually tells the motherboard to prioritize the graphics processor integrated into the CPU, provided that the processor supports integrated graphics.
Can I use both integrated graphics and a dedicated GPU?
Yes, many computers can use both integrated graphics and a dedicated GPU simultaneously. Depending on the motherboard and BIOS configuration, both devices can remain enabled. Windows can also manage multiple graphics processors for different applications.
Why is my dedicated graphics card not showing as the primary display?
A dedicated GPU may not become the primary display because of the BIOS configuration, an improperly installed graphics card, missing PCIe power connections, or a display cable connected to the wrong video output. Check the BIOS graphics settings and make sure the monitor is connected directly to the dedicated GPU.
What should I do if changing the primary display adapter causes a black screen?
First, check that the monitor cable is connected to the video output of the graphics adapter selected in the BIOS. If there is still no display, you may need to reset the BIOS or CMOS to restore the default graphics configuration. Consult your motherboard manual for the correct CMOS reset procedure.
Do I need to disable integrated graphics when using a dedicated GPU?
No. You usually do not need to disable integrated graphics when using a dedicated GPU. Many systems can operate with both graphics devices enabled. Disabling integrated graphics is generally unnecessary unless there is a specific reason to do so.
Does changing the primary display adapter in BIOS change which GPU Windows applications use?
Not necessarily. The BIOS primary display setting determines which graphics device is initialized first during system startup. Windows can independently select or assign a preferred GPU for supported applications through its graphics settings.
This setting is particularly useful when you install a new graphics card, troubleshoot a display problem, use multiple GPUs, or want your dedicated GPU to be the main graphics device instead of the integrated graphics processor.
However, BIOS interfaces and terminology vary between motherboard manufacturers. The option may be called Primary Display, Primary Graphics Adapter, Initiate Graphic Adapter, Initial Display Output, or something similar.
In this guide, you will learn how to change the primary display adapter in BIOS, what the available options mean, and what to do if the desired setting is not available.
What Is the Primary Display Adapter?
The primary display adapter is the graphics device that the motherboard initializes as the main video output during the boot process.A modern computer may have more than one graphics device. For example, a desktop PC can have :
- Integrated graphics built into the CPU
- A dedicated NVIDIA graphics card
- A dedicated AMD graphics card
- Multiple PCIe graphics cards
- Other PCIe display adapters
For example, if your processor has integrated graphics and you install an NVIDIA GeForce graphics card, the motherboard may allow you to choose whether the system starts with the integrated GPU or the PCIe graphics card.
Changing this setting does not normally change the graphics driver used by Windows. Instead, it determines which graphics device is initialized as the primary display adapter during startup.
Why Change the Primary Display Adapter in BIOS?
There are several reasons why you might need to change the primary display adapter.You Installed a Dedicated Graphics Card
One of the most common reasons is installing a new graphics card.
If your motherboard continues using integrated graphics as the primary adapter, you may want to configure the BIOS to initialize the PCIe graphics card first.You Want to Use Integrated Graphics
A dedicated graphics card consumes additional power and may not be necessary for basic tasks.
If you want to use the integrated GPU for normal desktop operation, you may configure the BIOS to prioritize the CPU's integrated graphics.You Are Troubleshooting a Display Problem
Changing the primary display adapter can help determine whether a problem is related to a particular graphics device.
For example, if the monitor displays an image when connected to the motherboard's video output but does not display anything when connected to the dedicated GPU, checking the BIOS graphics configuration can be part of the troubleshooting process.You Have Multiple Graphics Cards
Some workstations and specialized computers use multiple GPUs.
In this situation, selecting the correct primary graphics adapter can determine which GPU provides the initial display output.You Changed Your Hardware Configuration
After replacing a motherboard, CPU, or graphics card, the BIOS may automatically select a different display adapter.
Manually checking the primary display setting can ensure that the desired GPU is initialized during startup.
Before Changing the Primary Display Adapter
Before entering the BIOS, there are a few things you should check.First, identify the graphics devices installed in your computer. If you have a dedicated graphics card, make sure it is properly installed in the PCIe slot.
Also check where your monitor cable is connected.
If you have a dedicated graphics card installed, the monitor should generally be connected to the video output on the graphics card when you want to use that GPU.
For example, an NVIDIA or AMD graphics card may provide HDMI and DisplayPort outputs. The motherboard may also have HDMI or DisplayPort outputs connected to the integrated graphics.
These ports are not necessarily interchangeable.
If you select the dedicated GPU as the primary display adapter but leave the monitor connected to the motherboard's video output, you may not get the expected result depending on the motherboard and BIOS configuration.
It is also recommended to note the original BIOS settings before changing anything. This makes it easier to restore the previous configuration if necessary.
How to Enter BIOS or UEFI
The first step is to enter your computer's BIOS or UEFI firmware settings.Restart your computer and repeatedly press the appropriate BIOS key while the computer is starting.
Common BIOS keys include :
- Delete
- F2
- F10
- F12
- Esc
For many desktop motherboards, Delete or F2 is commonly used.
Some laptops use F2, F10, Esc, or another manufacturer-specific key.
If Windows starts normally before you can enter the BIOS, restart the computer and try pressing the key earlier during startup.
Enter BIOS Through Windows
If you have difficulty pressing the BIOS key at startup, Windows may also provide a way to access UEFI firmware settings.In Windows 11, you can open :
Settings → System → Recovery → Advanced startup → Restart now
After the computer restarts, select :
Troubleshoot → Advanced options → UEFI Firmware Settings → Restart
The computer should then restart directly into the UEFI firmware interface.
The exact menus can vary depending on your computer manufacturer.
How to Change the Primary Display Adapter in BIOS
Once you are inside the BIOS or UEFI interface, look for a menu related to graphics, chipset, PCIe configuration, or advanced settings.The exact location depends on your motherboard.
A common procedure is as follows.
Step 1: Enter Advanced BIOS Mode
Some motherboards initially open in an Easy Mode or simplified interface.If available, switch to Advanced Mode.
This is often done by pressing a key such as F7, although the exact key depends on the motherboard manufacturer.
Step 2: Find the Graphics Configuration Settings
Look through menus such as :- Advanced
- Chipset
- Advanced Chipset Configuration
- Integrated Peripherals
- PCIe Configuration
- System Agent Configuration
- Graphics Configuration
Step 3: Locate the Primary Display Setting
Look for an option with a name similar to :- Primary Display
- Primary Graphics Adapter
- Primary Video Adapter
- Initial Display Output
- Initiate Graphic Adapter
- Primary GPU
- Graphics Device
- Display Device
Step 4: Select the Desired Graphics Adapter
Depending on your motherboard, you may see options such as :IGD
This usually refers to the integrated graphics device.
PEG
PEG generally refers to a PCI Express graphics device. On many desktop motherboards, this corresponds to a dedicated graphics card installed in a PCIe slot.
PCI
This option may refer to older PCI graphics hardware or a specific PCI-related display configuration.
Auto
The motherboard automatically determines which graphics device to initialize.
If you want your dedicated PCIe graphics card to be the primary adapter, selecting PEG is commonly the appropriate choice on systems that use this terminology.
If you want to prioritize integrated graphics, select IGD, assuming your processor and motherboard support integrated graphics.
Step 5: Save the Changes
After selecting the desired adapter, save the BIOS configuration.A common shortcut is :
F10 → Save Changes and Exit
However, the exact key can vary.
Confirm the changes when prompted.
The computer will restart and attempt to initialize the selected graphics device.
Understanding Common BIOS Graphics Options
The terminology used by BIOS manufacturers can be confusing.Here is what some common options generally mean.
IGD
IGD usually means Integrated Graphics Device.Selecting IGD tells the system to prioritize the graphics processor integrated into the CPU, assuming the processor supports integrated graphics.
For example, some Intel Core processors and AMD processors with integrated graphics can use this option.
PEG
PEG usually means PCI Express Graphics.This is commonly used for dedicated graphics cards installed in a PCI Express x16 slot.
If you have an NVIDIA GeForce or AMD Radeon graphics card installed in the primary PCIe slot, PEG is often the option you want.
PCI
PCI may refer to a PCI graphics device or another legacy graphics configuration.This option is less common on modern systems because modern dedicated graphics cards normally use PCI Express rather than conventional PCI.
Auto
Auto allows the motherboard firmware to automatically determine which graphics device should be used.For many computers, Auto works correctly without requiring manual configuration.
However, manually selecting IGD or PEG can be useful when troubleshooting or when you specifically want to control the primary display device.
How to Set a Dedicated GPU as the Primary Display Adapter
If your goal is to make a dedicated graphics card the primary display adapter, the general procedure is :- Shut down or restart the computer.
- Enter BIOS or UEFI.
- Open Advanced Mode if necessary.
- Find the graphics configuration settings.
- Locate Primary Display or a similar option.
- Select PEG, PCIe, or the equivalent dedicated GPU option.
- Save the changes.
- Restart the computer.
- Connect the monitor to the dedicated graphics card.
Open Device Manager and expand :
Display adapters
Your dedicated graphics card should appear in the list if its driver and hardware are functioning correctly.
You can also use Windows Task Manager to check GPU activity.
Press : Ctrl + Shift + Esc
Then select the Performance tab and look for the available GPU devices.
How to Set Integrated Graphics as the Primary Display Adapter
If you want to prioritize the integrated GPU, the procedure is similar.Enter BIOS and locate the primary display option.
Select :
IGD, Integrated Graphics, iGPU, or the equivalent option provided by your motherboard.
Save the BIOS configuration and restart the computer.
If your motherboard has a video output such as HDMI or DisplayPort, connect your monitor to the appropriate motherboard video output.
Keep in mind that the integrated graphics must be supported by both the processor and motherboard.
A desktop processor without an integrated GPU cannot provide video output through the motherboard's display ports.
What If the Primary Display Adapter Option Is Missing?
Not every BIOS provides a manually selectable primary display adapter.Some modern motherboards automatically manage graphics initialization.
If you cannot find an option called Primary Display, search for related terms such as :
- Initial Display Output
- Initiate Graphic Adapter
- Graphics Configuration
- Integrated Graphics
- iGPU Configuration
- PCIe Graphics
- Display Device
- Video Configuration
Another possibility is that the motherboard automatically prioritizes the dedicated graphics card when one is installed.
In that case, there may be no reason to manually change the setting.
What to Do If the Computer Has No Display After Changing BIOS Settings
Changing graphics settings incorrectly can sometimes result in a black screen.Do not immediately assume that the graphics card is damaged.
First, check where the monitor cable is connected.
If you selected the dedicated GPU as the primary display adapter, connect the monitor directly to the dedicated graphics card.
If you selected integrated graphics, connect the monitor to the motherboard's video output, provided your CPU supports integrated graphics.
If you still cannot get a display, you may need to reset the BIOS or CMOS.
Reset the BIOS or CMOS
The exact procedure depends on your motherboard.Common methods include :
- Using the motherboard's Clear CMOS button
- Using a Clear CMOS jumper
- Removing the CMOS battery temporarily
- Using a BIOS reset function if available
A CMOS reset normally restores BIOS settings to their default configuration.
After resetting the BIOS, you may need to reconfigure other settings that you previously customized.
Primary Display Adapter vs Windows Default GPU
It is important to understand that the BIOS primary display adapter and Windows' preferred GPU are not exactly the same thing.The BIOS setting determines which graphics device is initialized as the primary display device during the early boot process.
Windows can then manage graphics devices independently.
For example, a system may use a dedicated NVIDIA GPU as the primary display adapter while Windows applications can still be configured to use a particular GPU.
Windows 11 and Windows 10 provide graphics preferences under :
Settings → System → Display → Graphics
From there, supported applications can be assigned a preferred graphics performance mode.
Therefore, changing the BIOS primary display adapter is not always necessary if your goal is simply to make a particular application use a dedicated GPU.
Common Problems When Changing the Primary Display Adapter
Several problems can occur after changing this setting.Black Screen
A black screen can happen if the selected graphics device does not provide a working video output.Check the monitor cable, graphics card power connections, and display input source.
Integrated Graphics Not Available
If you cannot select integrated graphics, your processor may not have an integrated GPU.Some desktop CPUs are designed to work only with a dedicated graphics card.
Dedicated GPU Not Detected
If the dedicated graphics card does not appear, make sure it is properly seated in the PCIe slot.Also check whether the required PCIe power connectors are connected.
BIOS Automatically Reverts to Another Option
Some motherboards automatically change graphics settings depending on installed hardware.A BIOS update can also modify the behavior or available options.
If the setting repeatedly changes, check the motherboard documentation and BIOS version.
Should You Disable Integrated Graphics?
You do not necessarily need to disable integrated graphics when using a dedicated graphics card.Many systems can operate with both graphics devices enabled.
Keeping integrated graphics enabled can sometimes be useful for troubleshooting, additional display outputs, or specific workloads.
If your motherboard provides an option such as Integrated Graphics, iGPU Multi-Monitor, or IGD Multi-Monitor, read its description before changing it.
Disabling integrated graphics may remove the motherboard's video output until the setting is restored.
For most users, selecting the desired primary display adapter is safer than disabling another graphics device unnecessarily.
Tips for Choosing the Correct Primary Display Adapter
When deciding which graphics device should be primary, consider how you use your computer.For a gaming PC with a dedicated graphics card, the PCIe graphics card is usually the logical primary display device.
For an office PC that relies on integrated graphics, IGD is generally appropriate.
For troubleshooting, testing both options can help determine whether a graphics problem is related to the integrated GPU, dedicated GPU, monitor, cable, or motherboard configuration.
Also remember that BIOS menus are manufacturer-specific. Two motherboards using the same chipset may still have different BIOS interfaces and terminology.
Final Thoughts
Changing the primary display adapter in BIOS is relatively straightforward once you understand the terminology used by your motherboard.In general, enter the BIOS or UEFI firmware, locate the graphics configuration section, find the Primary Display, Initial Display Output, Primary Graphics Adapter, or similar option, and then select the desired graphics device.
For a dedicated PCIe graphics card, the setting is often called PEG or PCIe. For integrated graphics, it may be called IGD, iGPU, or Integrated Graphics.
After changing the setting, save the BIOS configuration and restart the computer. Make sure the monitor cable is connected to the correct video output.
If the option is missing or the computer stops displaying an image after the change, check the motherboard manual and consider restoring the BIOS to its previous configuration or resetting the CMOS.
Most importantly, remember that the BIOS primary display setting controls graphics initialization during startup. It does not necessarily determine which GPU every Windows application will use. For application-specific GPU selection, Windows graphics settings and the GPU manufacturer's software may provide additional controls.
With the correct BIOS configuration, you can make your integrated or dedicated graphics adapter the preferred display device and ensure that your computer initializes the graphics hardware you actually want to use.
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