There is no SATA driver even on HP web site for downgrading the VISTA to WindowsXP because it dont take opreating system at all asking for SATA hard disc driver.
SM Bus Controller Download I have a system. My computer is not recognising my usb memory sticks and I am told that the problem is that under device manager the SM Bus Controller is showing that it does not have a driver and this is the answer. Download Now SM BUS CONTROLLER HP PAVILION G6 DRIVER
