I received my new WD1003FZEX 1TB drive from Amazon a few days ago and while the SMART data checks out, I have noticed a strange noise. It seems to happen a few minutes after boot / a few minutes after using the drive. I hear no other clicking or grinding at all. Read and writes speeds are 187MB/s and temp stays around 33-36c.
I uploaded a clip of the sound to YouTube but the volume is a bit low. At the 5 second mark you will hear a mouse click followed right after by the strange metallic sound. The only way to describe it is that it sounds like a tiny hammer clinking inside the drive. Not very loud, but not something I’ve ever heard.