After a few weeks of use the hard drive to any of the PC has been recognized more here, sometimes Windows suggested formatting before. At first I had a defect in the drive or the housing suspected but when screwing showed that the connector of board and hard disk had come loose. Since the hard drive is not screwed to the housing, the drive may slip during the transport of the board. Could to prevent it permanently plug any filler between disk and housing, so there is no space for slipping ...