Lets see our solutions!
What Is SM Bus Controller?
The general purpose of it is to monitor the boards voltage and temperature.

SM Bus Controller servers for low-speed, system management communications.
It is integrated into most Intel chipsets.
Why There Is an Exclamation Mark on Driver in machine Manager?

Windows doesnt have native driver support for the chipset that is included on the system board.
How to Resolve SM Bus Controller Exclamation Mark Issue?
you’re able to download and execute the Intel Chipset Software Installation Utility.

SM Bus Controller driver Dell
1.
Go to theDell Support webpage.
Identify your Dell product.

On the product support page, selectDrivers and downloads.
SelectChange OSand double-check that the correct version of Windows that is installed on your gear is selected.
Find theIntel or AMD Chipset gadget Software Driverthat is applicable for your machine.

If you are warned to run or save the file.
ChooseSaveand select a preferred location.
When the download finishes, trigger the.exefile.

You may need to reset your box to complete the process.
(Code 28)There are no compatible drivers for this unit.
To find a driver for this machine.
This may be because the INF was written for Windows x or later.
Contact your hardware vendor.
Just follow the below instructions to handle the issue.
If the updating driver cant fix the issue, continue with the following guide.
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