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Home » Event 16, The iommu fault reporting has been initialized [Fixed]

Event 16, The iommu fault reporting has been initialized [Fixed]

Event 16, The iommu fault reporting has been initialized

Are you seeing the “The iommu fault reporting has been initialized” message in the Event Viewer while investigating a problem you faced on your computer? If yes, you have come to the right place.

This article explains what the “Event 16, The iommu fault reporting has been initialized” message means and the steps you should take after seeing it.

What is the iommu fault reporting has been initialized message?

IOMMU, aka Input-Output Memory Management Unit, manages your computer’s input and output operations. It is also responsible for memory mapping between devices and your computer’s memory.

The iommu fault reporting has been initialized message appears when your computer has set up the IOMMU error reporting mechanism. Your computer will now automatically detect, and report memory issues caused by peripheral devices.

However, if you see this message after facing an issue on your system, you must perform certain fixes. For instance, you might see this message in the Event Viewer after your screen goes black for a few seconds, and only your mouse and sound device are working.

In such a situation, the “Event 16, The iommu fault reporting has been initialized” message indicates an issue with the peripheral device. You can quickly troubleshoot the issue with your device using the solutions below.

1. Turn Off XMP in BIOS

XMP option in BIOS

The first thing you need to do is to disable XMP if it is enabled in Bios. To do that, follow these steps:

  1. Restart your computer, and press the Bios key to enter the Bios setup utility.
  2. Access the memory settings menu in the BIOS setup utility. It’s generally situated under the Ai Tweaker or Overclock tab.
  3. Locate and disable the XMP setting. This setting may be named XMP Profile, Extreme Memory Profile, or Memory Overclocking.
  4. Now, save the changes and exit the BIOS setup utility.

2. Update Device Drivers

Check for updates option in Settings app

Updating device drivers is another quick way to get rid of the “The iommu fault reporting has been initialized” message. To do that, open the Settings app, choose Windows Update from the left sidebar, and press Enter.

Now, click Check for updates in the right pane. Windows will go online and look for any available updates, including the driver updates. If it finds any, it will automatically download it.

3. Close Unnecessary Background Applications

You’ll face issues with the connected peripherals and see, “The iommu fault reporting has been initialized” due to heavy load on your system. You can fix this by closing unnecessary apps from the background.

That’s about it. This is how you can get the “The iommu fault reporting has been initialized” message.

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