Ive upgraded my video drivers twice so far. to the 4.7's and 4.8 betas. Every time i install them and restart the comp when loading says theres nothing on all the sata connections. then i hit F2 to go into the setup menu and it still doesnt detect any hardrives. so then i shut down the system. then turn it back on and it detects all the hardrives and then works flawlessly.