Module CPUID Power On Failed – Solve and Get Back To Work

CPUID power-on failure is a severe problem that can stop a computer from working. This error usually prevents the central processing unit (CPU) from starting up properly when the computer boots up.

“Module CPUID Power On Failed” is a standard virtualization error. Resolve it by checking hardware support, adjusting VM settings, updating software, and ensuring compatibility for smooth operation.

In this article, we will explore the various causes of CPUID power-on failures and provide suitable solutions to help resolve this issue.

Understanding The Meaning Of CPUID

Before getting into what’s wrong and how to fix it, knowing what CPUID is and why it’s vital for a computer to work is essential. The x86 architecture has an instruction called CPUID that lets software discover the CPU’s powers and features. 

Understanding The Meaning Of CPUID
Source : Tech Guy

This knowledge is essential for the operating system and software programs to work well with the hardware and run at their best. When the CPUID code fails at power-on, it can cause a chain reaction of problems that stop the computer from working right.

Why Does Module CPUID Power-On Failure? Potential Causes:

1. Hardware Issues:

  • A broken CPU is one of the main reasons why CPUID doesn’t turn on. This could be because of actual damage, overheating, or a problem with how the product was made.
  • Bad parts of the motherboard, like the chipset or the power delivery system, can stop the CPU from getting the power or communication messages it needs.
  • Memory-related problems can happen when the CPU is starting up because of insufficient RAM modules, causing the CPUID to fail.
  • If the power supply unit (PSU) isn’t good or working right, the CPU may not get steady power, which can cause initialization failures.

2. BIOS/UEFI Configuration Errors:

  • The wrong BIOS or UEFI settings can cause CPUID problems. For example, CPU initialization problems can happen if the CPU clock speed, voltage settings, or memory setups are not set up right.
  • BIOS/UEFI firmware that is outdated or broken can also cause CPUID power-on to fail. Manufacturers often put out updates to fix these kinds of problems.

3. Software And Firmware Conflicts:

  • Old or incompatible device drivers can mess up CPUID setup. It is imperative to make sure that all drivers are up-to-date.
  • When firmware parts, like the system BIOS and device firmware, don’t get along, they can stop the boot process.
Software And Firmware Conflicts
Source : Info Pulse

4. External Factors:

  • When there is too much heat in the system, parts, including the CPU, can break. Make sure the cooling system is in good shape.
  • Power spikes or unstable power sources can damage parts and make it impossible for the CPUID to turn on.

How To Fix Module CPUID Power On Failed? Easy Solutions:

The “Module CPUID Power On Failed” mistake usually happens when there is a problem with a virtual machine’s (VM) virtualization settings or compatibility. Here’s how to fix this error:

1. Check Your CPU And Virtualization Support:

Check whether your CPU can handle virtualization (for example, Intel VT-x or AMD-V). If you need to, you can turn on virtualization in your system’s BIOS or UEFI settings to ensure it works well and is compatible.

2. Confirm Nested Virtualization Compatibility:

Make sure your hypervisor supports layered virtualization, especially if you want to run a virtual machine inside another virtual machine. Not all virtualization systems can handle this feature, so check to make sure it will work well.

3. Adjust VM Configuration:

The virtual machine cannot start because the total virtual CPU count doesn’t align with the configured cores per socket set. The two values should be compatible for the VM to power on.

  • Open your virtualization management console (e.g., VMware, VirtualBox, Hyper-V) and select the problematic VM.
  • Edit the VM’s settings to adjust the CPU configuration:
  • Set the “Number of virtual sockets” to 1.
  • Set the “Number of cores per socket” to a compatible value, typically 1 or a multiple of 2.
  • Ensure that the total number of vCPUs is within the limits of your virtualization platform.
  • Save the changes to the VM’s configuration.

4. Check For Incompatible Features:

Ensure you have not activated your virtualization platform’s unsupported advanced CPU features or configurations. If incompatible, disable these settings to maintain compatibility and resolve potential issues.

5. Update Virtualization Software:

Get the latest version of your virtualization program to keep it up-to-date. This ensures you can access bug fixes and better compatibility, improving your virtualization environment’s overall speed and stability.

6. Reboot The Host:

The host machine needs to be turned back on. If you see “Module CPUID Power On Failed,” try restarting the host where the problem VM is running. This can sometimes fix the problem.

Reboot The Host
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7. Check For VMX Configuration:

Users of VMware should check the VMs.vmx file for strange settings. Make sure there are no choices for CPU features that conflict with each other and could cause “Module CPUID Power On Failed” errors.

8. Review BIOS/UEFI Settings:

Check your host machine’s BIOS or UEFI settings to ensure that virtualization support is turned on. Also, look at other CPU settings that could affect virtualization. For CPUID power-on problems to be fixed, the BIOS/UEFI settings must be set up correctly.

9. Consider The Host Environment:

When running a VM on a cloud or managed virtualization platform, talk to the provider’s support team for help. They can help fix “Module CPUID Power On Failed” errors by giving them exceptional service with their configurations and limitations.

10. Reinstall Or Clone Vm (If Necessary):

If changing the settings doesn’t fix the problem, you could reinstall the VM or make a clone from a template you know works. This step could help you resolve issues that keep coming up that say “Module CPUID Power On Failed.”

11. Check Compatibility Lists:

Refer to the vendor’s compatibility lists in enterprise-level virtualization settings to ensure your hardware and software versions are officially supported. ‘Module CPUID Power On Failed’ problems can be avoided by ensuring everything is compatible and getting support from the seller.

Frequently Asked Questions:

1. Why Is My VM Not Powering On?

This error usually means that the VMX file for the virtual machine is broken and needs to be remade. To make a new VMX file, right-click the Virtual Machine and click Edit Settings… if you can. This will show you how the Virtual Machine is set up now, which you can use as a guide.

2. How Do You Reset A VM Power?

Find the VM you want to reset and click on it. Right-click on the VM you want to work with or go to the Actions menu. To bring up the Run Power Control window, choose VM Power > Reset from the menu. Power Control Run: Check the VM you want to reset, and then click the “Next” button.

3. Can This Error Occur When Running VMs On Cloud Providers Or Hosted Platforms?

Yes, the “Module CPUID Power On Failed” error can happen when running VMs on cloud providers or hosted systems. To avoid this error, you must ensure that the virtualization features in these settings are compatible and supported.

4. Can Third-Party Software Or Security Applications Trigger This Error?

Some third-party software, especially security programs, could mess up CPU virtualization. The problem may be solved by temporarily turning off or changing the software.

5. What Happens When You Reset A VM?

To reset your VM, press a reset button or press and hold the power button, just like when you do a hard restart on your computer. When you reboot a VM, the machine’s memory is wiped clean, and the VM is returned to its original state. The VM does not shut down the guest OS in a neat way.


In conclusion, working with virtualization and getting the “Module CPUID Power On Failed” error can be challenging. But this problem can be fixed by carefully troubleshooting and changing the setup.

You can fix this problem and make sure the virtual machine runs smoothly by making sure the hardware supports it, adjusting the settings for the virtual CPU, updating the software, and checking for compatibility.

Remember to write down your changes and ask for help, especially in complicated virtualization settings.