I have a Seagate Barracuda LP 1 TB external hard drive. I am guessing someone dropped it because something inside it is loose. I opened it and a piece was loose. On the piece it is marked 12.000H9F; it is a long oval in shape. on the bottom, which is flat it has two little hole things. Where is this supposed to fit. When I plugged the hard drive in it says that there is too much power supply in the the USB port. What do I do.