Well these drives have been not good, they seem to have to have some mechanical problem, I would get another brand and copy the drive over right now. RMA the drive and sell the refurbed drive. In my opinion once a drive starts making a unusual noise it may be that it lasts a hour or a month it is hard to tell. Drives are cheap now, sorry about the drive but IBM is having a lot of problems with there drives right now.
Bleep