p1ng1337 :
As asked before in here I cannot find the drivers for the SM Bus Controller. I have a ASRock Z97 Pro3, i7 4790k, GeForce 780. I have already installed the chipset from intel everyone mentioned and it did nothing. Running windows 8.1
The SMBus is a part of the Intel Management Engine, which is a separate component of the chipset. The drivers for the Management Engine are provided by the OEM (using reference drivers from Intel), not Intel itself like the chipset drivers. The only except to this is PCs for which Intel is the OEM, but there are only a few of those.
You can find the driver here
http://www.asrock.com/mb/Intel/Z97%20Pro3/?cat=Download