SM Bus is the System Management Bus defined by Intel in 1995.
It is used in personal computers and servers for low-speed system management communications.
An SM Bus controller is integrated into most Intel® chipsets.
You need to download and install the Intel® Chipset Software Installation Utility.
This will install the chipset INF files so that Windows* properly recognizes the chipset's
built-in SM Bus controller and solve the sm bus controller update problem