CPU DXE Initialization Is Started – How To Fix In 2023

When a computer starts up, there are a lot of different parts that all have to work together smoothly. The CPU DXE (Driver Execution Environment) Initialization is one of the most essential parts of this process. 

This message signifies the DXE and BDS (Boot Device Selection) phases cooperating to set up consoles and initiate OS booting. Once the OS is booted, the DXE phase concludes its tasks.

Stay with us; this article describes CPU DXE Initialization, why it’s essential, and how to fix this system initialization.

Understanding The “CPU DXE Initialization Is Started,” Meaning:

CPU DXE Initialization is a part of the system’s boot-up process in which the Central Processing Unit (CPU) does several things to prepare. It ensures that it will work well in the next steps of the boot process. This step happens after the Power-On Self-Test (POST) and before the operating system’s kernel is loaded.

During CPU DXE Initialization, the CPU is put into a state where it can run complicated software components, which usually come in the form of firmware drivers.

“CPU DXE Initialization Is Started” is an error code between 63 and 67 on the LED debug panel. Driver Execution Environment is what DXE is short for. It puts your system’s settings into memory and starts the lasting memory. If you get this message during the boot process and your computer won’t turn on, it could be because one of your memory sticks is broken or you need to restart your two memory boards.

CPU DXE Initialization Is Started," Meaning
Source: bestofmotherboards

Why CPU DXE Initialization Is Started Situation Occurs? 

It is usually not a problem or error message but rather a message that tells you something. But there are times when this process might stop or run into problems. Here are some possible reasons why these things happen:

Why CPU DXE Initialization Is Started Situation Occurs
Source:Best Motherboards

1. Hardware Issues:

  • Initialization problems can happen if the CPU is broken or not installed correctly.
  • CPU startup can get stuck if there are problems with the computer’s RAM.
  • A bad motherboard, broken cables, or other hardware problems can interrupt CPU initialization.

2. Software/Firmware Issues:

  • If the software controlling how the CPU starts up is damaged or set up incorrectly, it can cause problems.
  • The CPU startup process can be messed up by a failed firmware update or an update that doesn’t work with your hardware.
  • Initialization problems can be caused by wrong BIOS/UEFI(Unified Extensible Firmware Interface) settings, like boosting or changing CPU settings.

3. Peripheral Issues:

  • Sometimes, USB devices or other add-ons connected to the computer can cause delays or mistakes during the initialization process.
  • Problems with expansion cards like graphics cards and sound cards can mess up the startup process.

4. Power Issues:

  • If the power supply unit (PSU) needs to give the CPU or other parts more power, it can be hard to start up.
  • Electrical spikes or changes can make it hard to start up.
  • If a BIOS or UEFI update is delayed or not finished, it can cause problems when the CPU starts up.

How To Fix CPU DXE Initialization Is Started? 

To address the “CPU DXE Initialization Is Started” issue, you can follow these steps:

1. Utilize Onboard Display:

  • When you see “CPU DXE Initialization Is Started” and think it might be a problem with your graphics, disconnect the specialized GPU (graphics card). You can use the DisplayPort or graphics built into your CPU if you have one.
  • This step helps figure out if the problem has to do with the GPU. If your computer can show video output through the onboard link, it could mean that the external GPU isn’t working right.
  • If there is no video output, try a different DisplayPort cable to rule out a problem with the cable.

2. Single RAM Stick Boot:

  • Start your computer with just one stick of RAM loaded to fix any memory problems preventing the CPU from starting up. Put it in different places on your motherboard’s RAM slots.
  • This method helps determine if the problem is with a specific RAM stick or where it is placed. Test each piece of RAM separately to find the bad ones.
  • Also, test with two RAM sticks in dual-channel mode. Use a different set of RAM that you know works to fix problems with RAM.

3. BIOS Flashback:

  • If your motherboard allows it, a BIOS flashback can be helpful if there is a problem with the BIOS, like corruption or incompatibility.
  • You’ll need a USB drive with the new BIOS file to do a reboot. Check the manual with your motherboard to learn how to start the flashback process using the button or method given on the motherboard.
  • Through flashback, BIOS updates can fix problems with security, compatibility, or issues that keep the system from starting up. Make sure to follow the instructions given by the maker of your CPU for this step.

4. Clear CMOS:

  • Clearing the CMOS (Complementary Metal-Oxide-Semiconductor) settings is a troubleshooting step that can fix many problems caused by wrong settings or unstable behavior.
  • You can clear CMOS by moving a jumper on the motherboard to a different position. It will return the CMOS settings to their original values. You can also clear CMOS by taking the battery out of the computer for a few minutes and then putting it back in.
  • Clearing the CMOS is especially helpful if there are problems with the date and time settings, stability issues caused by BIOS settings, or hardware compatibility issues.

5. External Motherboard Power-Up:

  • This advanced step helps determine if the chip causes the boot problem. To do this, you must take the motherboard out of the computer case and connect only the most essential parts straight to the board.
  • The CPU, RAM, CPU cooler, power source, and monitor are all important. You can determine if a problem is with the computer or the case by eliminating any possible grounding issues or conflicts.

If the problem keeps happening, it could be a problem with your CPU or motherboard. In these situations, the best thing to do is replace the broken part and try the system with the new one. You did an excellent job of figuring out what was wrong.

On the other hand, if you see the message “CPU DXE Initialization Is Started,” but your system keeps running efficiently, and the boot process doesn’t stop, you probably don’t need to worry.

The 67 Error Code During CPU DXE Initialization:

The error code “67” on a motherboard is usually related to CPU DXE initialization. It means that the CPU is having trouble getting to important boot data. It could be because of problems between the CPU and the motherboard, with the BIOS, or with a bad CPU.

So, what is the impact of the 67 error code? If the processor doesn’t start up right at this point, it can cause problems with speed and stability. In the worst cases, it could stop the computer from starting up, leading to data loss and other serious issues. It’s essential to fix the 67 mistakes right away.

Troubleshooting The 67 Error Code During CPU DXE Initialization:

To troubleshoot the “67” error code during CPU DXE Initialization, you can follow these steps:

1. Verifying System Configuration:

  • Verify that your motherboard and CPU are compatible by checking. To ensure compatibility, check the documentation for both components.
  • Ensure that every piece of hardware, including the RAM, GPU, and storage units, is properly installed and linked to the motherboard.
  • Ensure that the system receives enough power from your power supply unit (PSU) and that all power cords are firmly attached.

2. Updating Drivers and Firmware:

  • Install the most recent BIOS/UEFI firmware for the motherboard. For downloads and instructions, go to the manufacturer’s website for motherboards.
  • Check the websites of the different manufacturers for the most recent drivers for your CPU, GPU, and other system components.
  • Make sure that your operating system has the most recent patches and upgrades.

3. Resetting the System:

  • Initialization problems can be fixed by resetting the system’s setup. By erasing the CMOS settings on the motherboard, you can achieve this.
  • If your system has two BIOS/UEFI options, you could also try switching to the backup BIOS/UEFI to see if that fixes the problem.


CPU DXE Initialization is a critical stage in the computer’s boot-up process, responsible for preparing the CPU and hardware components for the operating system’s smooth execution. It ensures that firmware drivers are installed, hardware devices are correctly configured, and runtime services are available.

CPU DXE Initialisation that is efficient contributes to system stability and performance. When dealing with CPU DXE Initialisation issues, it’s critical to use a systematic troubleshooting approach to discover and resolve probable hardware or firmware issues.