i recently downgraded my Pavilion G7 (AMD A6-4400M APU) from windows 8.1 pro to Windows 7 Pro x64. I encountered very little problems with drivers and/or software, however my device manager still shows one unknown device (SM BUS Controller) which I know from experience to usually be contained within the chipset drivers for this Notebook. However, I cannot find the chipset drivers. Does anyone know where I can get the chipset drivers ? Description is HP Pavilion G7 2238nr. Computer info shows me AMD A6-4400M APU. please help