Hello, I too would like to thank Gradius for the BSY fix. I just used it up un-brick a 500Gb hard drive. If your living in the UK, the following may be useful: I got my RS232 - TTL board from Active Robots: http://www.active-robots.com/products/acce...s/act-sib.shtml RS232 Serial Interface Module - Product Code: ACT-SIB This runs on 7 - 20 volts, which allowed me to connect it to the 12v supply from the computers PSU. For the serial lead to the hard disk, Maplin sell a Graphics Card Fan Adapter, part no: A3GF http://www.maplin.co.uk/Module.aspx?ModuleNo=98840 this comes with the standard molex as well as the smaller connector that fits the serial port on the hard disk. It'll work without modification, but may be a bit short. I extended mine by cutting off the white connector, and soldering in 30cm of cable. Thanks again Karl.