I have removed a 500gb hitachi cinemastar hard drive with sata connection from a lacie enclosure and fitted it into a dynamode sata 3.5inch enclosure. The dynamode enclosure is seen by my laptop, when I try it with my hard drive connected it disappears from my laptop. Reason for changing was that I was finding it difficult to source a power pack for the lacie enclosure. Connect tin for dynamode to laptop is usb 3.0. Any help would be appreciated.