The hard drive repeatedly clicks, bangs, thrashes
or makes strange noises.
The hard drive is not "seen" by the computer
when connected. It does not show up in "System Devices" in
Windows or "System Profiler" on a Mac.
The hard drive shows an incorrect
or strange designation in "System Devices" in Windows or "System
Profiler" on a Mac.
Common Issues
The hard drive has firmware and optimization
settings written to it at the factory. This is like a program on the
hard drive that actually tells the hard drive how to work.
The firmware or settings can be corrupted or
contain bugs.
Some hard drive
models may be more prone to this type of error than others.