When the system boots, the SCSI controller detects the driver, but NT does not. What can I do to solve this problem?

What type of controller card is it? Adaptec.. What happens when NT loads up? Have you checked in Disk administrator?

Have you installed the SCSI driver in the control panel?

Is this the only drive or is there also an EIDE drive in the system? If there is check this out. EIDE and SCSI May Not Mix: Keeping virtual files and cache on a SCSI drive improves the performance of disk operations by at least four times over EIDE drives. SCSI drives must always be at SCSI address 0 to permit them to boot, but they still might not be able to boot to the NT kernel if your NT server has a mixture of EIDE and SCSI drives. SCSI boards may require that they're the only drive in the system to allow the SCSI drive to boot as drive C:, a holdover from older BIOS days. If this is the case and you want to us e the SCSI drive, you'll have to disable the EIDE drive.

my NT computer has a Pinnacle Micro Optical SCSI drive installed. when the system boots, the SCSI controller detects the drive, but NT does not.what can be the cause?

I am having much the same problem. I have an Adaptec 29160 card with 3 hard drives, one on the LVD-Seagate, and 2 Quantums on the SE connector. Finally have the hard drives recognized in the coreect order(SCSI ID) and all are properly terminated. On startup BIOS recognizes all hardware and starts the NT installation. I specify S for other devices and let NT discover the SCSI driver from the Adaptec diskette. NT states that it has installed the driver, but then states it cannot find any hard drives. The only HD's I have are SCSI and I have specified in the BIOS that there are no EIDE drives. System is an ASUS P2B board with 128MB SDRAM, Pentium III @450,AWENT sound card, and the 3 SCSI hard drives I have mentioned. I am now thinking I may have to upgrade the BIOS ( both Adaptec & ASUS) and see if this helps. Any sugggestions would be appreciated.