SMBus controller error in device manager? 3 easy-to-apply fixes

  • If you see the yellow exclamation mark next to SMBus Controller, it means Windows does not recognize the hardware.
  • You can restore, reinstall and install the driver from Windows Update or manually.
  • Sometimes it is necessary to visit the manufacturer’s website and get the latest drivers.

smbus controller not recognized


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If you have recently reinstalled Windows operating system, upgraded to Windows 11, or installed the latest Windows update, you may encounter an unexpected SMBus controller error in Device Manager.

The Intel SMBus controller is a chipset on the computer’s motherboard that monitors motherboard voltage and temperature.

A yellow triangle with an exclamation mark next to the SMBus controller driver means that Windows does not recognize the hardware. This indicates a driver problem, for example, an outdated or missing driver. Fortunately, this can be fixed easily.

What is the reason for the SMBus controller error?

The Intel Chipset Device Software does not install device drivers for the Intel SMBus Controller, resulting in the error (the yellow exclamation point).

This prevents the current SMBus controller from passing device and hardware information to the operating system.

The error prevents the driver from displaying the correct name of the specific hardware in Device Manager.

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This article will highlight some solutions that can help you to fix SMBus controller not recognized in device manager error.

How can I fix the SMBus controller not recognized error?

1. Roll Back to Previous Intel SMBus Controller Driver

  1. press the To win + R keys together to start the Course console.
  2. Type devmgmt.msc in the search field and press Walk in to open the Device Manager the window.Type devmgmt.msc in the Run console and press Enter
  3. Here, go to System devicesexpand the section, right click on the SMBus controller device, and select Properties. Expand System Devices in Device Manager, right click on SMBus Controller and select Properties
  4. Now in the SMBus Controller Properties dialog box, navigate to the Driver tongue. Click on the Driver Rollback button. Restoring SMBus controller driver in properties
  5. When finished, press OKAY to save changes.

Exit Device Manager, restart your PC and now check if the SMBus controller driver issue is resolved.

Note icon

If you can’t find System devices in the Device Managerclick on the To see tab at the top and click Drivers by type. You should now see the System devices section.

2. Install Intel Chipset Drivers Manually

  1. To visit Intel official site to download and install the latest chipset driver.
  2. It will take you to Intel Download Center. Here, type chipsets in the search field and press Walk chipsets in intel download center
  3. On the next screen, in the left pane (filter by), go to Download type and select Drivers.
  4. Then under the Operating systemselect your Windows operating system, for example, Windows 11. Filter search by driver and operating system
  5. Now on the right side click on See the details for the latest chipset driver software links and check the date. Check chipset driver with latest date and view details
  6. If it’s the last one, click the To download link to download the zip file. Download zip file
  7. Open the Zip folder, select the .EXE file and click Extract to at the top to extract the installation file to the desired location, for example, to the Office. Extract the .exe file to the desktop
  8. Navigate to the desktop or location where you extracted and double-click to run the file.
  9. Follow the onscreen instructions to install the latest chipset driver.

Once done, restart your PC and check if the SMBus controller not recognized error in device manager is gone.

3. Update Intel Server Chipset Driver

  1. Go to To start upright click and select Device Manager. Right click on Start and select Device Manager
  2. expand the System devices section in Device Manager, right-click SMBus controller device, and select Update driver. right click on the smbus controller in device manager and select update driver
  3. Now in the new window click on Browse my computer for drivers. select Browse my computer for drivers in update drivers
  4. Then select Let me choose from a list of drivers available on my computer. select Let me choose from a list of drivers available on my computer
  5. On the next screen, select the correct Maker on the left column and the SMBUS Controller Driver under the Model right column.
  6. For example, if your PC supports an Intel motherboard, select Intel as Maker and SMBus controller as Model. Select Manufacturer and Model and press Next
  7. Hurry Following to install the selected driver.

When finished, close the Device Managerrestart your system and check if the SMBus controller not recognized issue is resolved.

An outdated, corrupt or missing driver can trigger an error and cause the associated device to malfunction on your Windows PC.

To make things easier, you can use driver detection software to find missing drivers, detect the drivers, and automatically install them for you.

If you have any other questions regarding missing drivers or driver errors, leave your comments below.

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