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Have you experienced any odd behavior after updating to AMD SMBus driver 5.12.0.38? Check your Event Viewer for PCI Express errors and post your chipset model in the comments below – our community can help troubleshoot.
stands for System Management Bus . It is a simple, two-wire bus derived from the I²C (Inter-Integrated Circuit) protocol, used for lightweight communication between system management devices on a motherboard. amd smbus driver 5.12.0.38