MA790XT-UD4P SMBus problem

[WilliamCZ]

Hello there, got a little bit of problem here.

The thing is, that when my PC is booting,  on the boot screen I get "SMBus Cntrlr NA" thingy.

I'm currently using default SMBus driver on Windows 8.1, which is called "ATI I/O Communications Processor SMBus Controller" that I can see in the device manager, if I open the properties, it's saying that no hardware is using this driver, means my PC can't recognize the SMBus, which is bad.

If I try to update this (doesn't matter if by Windows Update or by installing the driver from AMD website) to "AMD SMBus", it still stays the same and none of the components is using this driver. Also by installing this driver I get low fps in games, also games starts to stutter, so I have to rollback these drivers.

In my opinion my SMBus (chipset, or whatever is that?) is not working properly, coz my PC just can't recognize that, as it's not loading any drivers at boot screen.

I'm using the latest bios and the Phenom II x4 955 BE stock clocks.

Any help would be appreciated! 

[autotech]

After looking thru specs and such I think it would be best if you contacted gigabyte support for this problem.  All I could off is that it could be a problem with windows 8 more than the motherboard. I have a machine with 8.1 on it and it gives me more problems tan this one which is why I use it so little.