Okay, just to double-check all the basic bases:
- The SCSI drive must be jumpered and terminated properly
- It must have a unique ID (different from other devices, such as controller/card)
- Enter SCSI controller's BIOS and prevent checking for devices at unused ID numbers.
Download the manufacturer's drive utility for SCSI drives and run it, maybe it needs to be initialized there. Otherwise initialize it in Win2k's Disk Management console and place a file system on it (format it). Check the boot order in your motherboard's BIOS.