All the drives I've bought myself have been set to Master (and that's usually how they stay), but the longest running drive, my 6GB Toshiba, is also stamped upside down. So was my now-dead 13GB ...

A feature of some PCs that allows IDE/ATA hard disks to be numerically identified by the order in which they are attached to the cable. Both the BIOS and the drive must support this feature. Without ...