I have a backup hard drive that had been running fine for months. After I disconnected the system and moved it around, then reconnected, I got a non-system disk error. By trail and error I figured out that if I disconnected the backup drive everything works fine.
But, the hard drive is fine if I plug it in to a different desktop. It was originally the backup drive on the second system when it belonged to someone else, when I picked it up I salvaged the hard drive fro my 'first line' system.
- the first system is a ZT Systems 7332 Ma, AMD Phenom II X4 processor, running Windows 7 Home Premium, 64-bit
- the second system is a HP, Intel Core2, running Windows 7 Home Premium, 32-bit
- Seagate 1TB Barracuda 7200.11 drive