What is the AMD SMBus Windows Driver?

The AMD SMBus (System Management Bus) driver is a software component that enables communication between your computer's motherboard chipset (specifically AMD-based systems) and various hardware components, such as sensors, thermal management systems, and voltage regulators. The SMBus is a communication protocol that facilitates low-speed, low-power communication between devices in your system, typically for tasks like monitoring system health, controlling fan speeds, and power management.

In the context of AMD systems, the SMBus driver allows the operating system to interact with these motherboard components and properly manage hardware functionality like temperature sensors, battery management, fan control, and other system management tasks.

The AMD SMBus driver is typically required on AMD-based motherboards, often part of the chipset driver package for your motherboard. Without this driver, some hardware-related features may not work correctly, or Windows may fail to recognize certain motherboard components.