If so, the safest solution is to contact a professional hard drive repair service for help. In worse cases, it can be a seized motor or stiction where the hard disk’s read/write heads are stuck to the platter. Some of the causes such as a faulty cable are easy to handle, and you can fix the beeping problem yourself. This problem can be caused by a number of things. It may also be accompanied by other symptoms such as computer unable to recognize the drive. If your Seagate external hard drive beeps, something could have gone wrong with the hard disk itself or with other hardware.