Miguel Medalha wrote:
The WD is a SATA3 drive (6gb/s). Are you sure that your motherboard supports SATA3 drives? Maybe SOME ports support them while others do not? If not, can you force the WD to operate in a lower mode? Some drives can, either by hardware or software.
Thank you very much for your lucid explanation, which has clarified the issue greatly in my mind. I was indeed completely ignorant of the basic facts about SATA drives, since in my (limited) experience they simply worked when installed.
The two HP MicroServers I have are both N36L models, 3 years old. I had better check if these do support SATA3 drives.