installed my ud5 last night, setup the raid 1 on my f3's, its the first time i've setup raid on my home pc so not sure if this is normal but if i let the raid setup use the disks maximum size the windows installation couldnt see the drive regardless of what drivers i used, if i set the maximum size slightly smaller 980gb vs 999.something it seemed to work absolutly fine without having to load any drivers. not had a chance yet to start any testing or overclocking but all good so far