I had a reply off the manufacterers they were not much help at all, i ended up partitioning the HD, it still makes the noise but i have given up on it. I now have my 40GB HD as Master, The computer is back to running slow and crashing.
It cant be my mem coz the size is 636????

I might just buy a new one after xmas and skip this one.
Thanx for your help guys.