Is the drive being used as an external drive? Can you hear it spin up?
Are you sure it's not a SCSI ID problem? By definition, the controller itself must have an ID (usually 7, but sometimes 15 on SCSI-2 controllers).
If you don't have an external terminator, jumper for terminator = on. Termination power should be enabled, check the drive is set to spin up automatically on power on - if it's out of a RAID array, it may have been jumpered to spin up when "told" to by the RAID controller.
Does the Adaptec controller work with another drive? Is the Adaptec controller a "proper" Mac one - with ROMs for a Mac? A Wintel PCI SCSI controller looks the same and fits in the hole, but won't work too well.
Are you sure it's not a SCSI ID problem? By definition, the controller itself must have an ID (usually 7, but sometimes 15 on SCSI-2 controllers).
If you don't have an external terminator, jumper for terminator = on. Termination power should be enabled, check the drive is set to spin up automatically on power on - if it's out of a RAID array, it may have been jumpered to spin up when "told" to by the RAID controller.
Does the Adaptec controller work with another drive? Is the Adaptec controller a "proper" Mac one - with ROMs for a Mac? A Wintel PCI SCSI controller looks the same and fits in the hole, but won't work too well.