1. es102.exe Driver
2. NT35.TXT File Contents

NT35.TXT Driver File Contents (es102.exe)

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			    NT35.TXT
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This file describes the features and use of the NCR SDMS device
drivers for the Windows NT 3.5 (code named Daytona) operating
system environment. It is divided into the following sections:

Introduction for Windows NT 3.5 (Daytona)
NCRC8XX.SYS
	Features
	Description
	Installation
	Command Line Options
	Troubleshooting

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***************** Introduction for Window NT 3.5 *******************

Windows NT 3.5 is an operating system designed to run on processors 
using current technology. It provides a graphical user interface 
environment, without DOS, incorporating many high-level features 
(refer to the Microsoft Windows NT 3.5 documentation for details). 
I/O requests in Windows NT 3.5 are handled by an I/O manager. To 
address a SCSI peripheral, the I/O manager goes through the 
appropriate drivers. Class drivers for hard disk, floptical, CD-ROM, 
printer, and scanner peripherals are provided in Windows NT 3.5. Other
class drivers, provided by peripheral manufacturers, may be added to 
support new devices. Tape device support is built into the operating 
system itself and does not require a class driver. NCR/Microsoft 
provides a miniport driver, called NCRC8XX.SYS, to complete the path 
to an NCR controller or processor with an SDMS SCSI BIOS. The 
following section describes this driver and its installation.



************************* NCRC8XX.SYS *****************************


* Features *

 Synchronous negotiation (including fast SCSI) 
 Wide negotiation
 Tagged command queuing
 Supports multiple host adapters
 Supports multiple Logical Unit Numbers (queue)
 Disconnect/Reselect
 Scatter-Gather
 Differential Support
 Supports SCSI pass-through functionality


* Description *

NCRC8XX.SYS is designed to Microsoft's specification for miniport 
drivers. This driver allows connection of SCSI devices including 
disk drives, CD-ROMs, and tape drives for only PCI-based machines. 
To support a new SCSI device the Windows NT 3.5 architecture requires 
that a class driver for that type device be present (usually 
supplied by Microsoft, or possibly by the peripheral manufacturer). 
No changes to NCRC8XX.SYS are required.  This driver is only supported
under Windows NT 3.5 and later versions.  It will not run under 
earlier versions of NT.

SCSI commands can be passed directly from a Windows application to the
SCSI devices by using the SCSI pass-through facility (refer to the 
Microsoft Windows NT 3.5 documentation for details). This facility 
allows applications to directly control and access SCSI devices by 
filling in a data structure and calling in to the port driver.


* Installation *

New System Installation

This procedure will install the NCRC8XX.SYS driver onto a Windows NT 
system. Use this procedure when installing NT onto an unused IDE or 
SCSI drive. NT will automatically add the driver to the registry and 
copy the driver to the appropriate directories.

1. Start the NT installation by booting off the Microsoft floppy disk.

2. Press Enter when the Welcome to Setup screen appears.

3. On the Setup Method screen, choose custom setup. 
(If Express Method is chosen, the installation program will then scan 
for SCSI adapters.  It will find the NCR PCI (53C810) driver , 
NCRC810.SYS, which is an older version of the NCRC8XX.SYS driver.  Let 
installation continue. When installation completes, change the driver.
To change the driver, see the "Existing System Installation" section.)

4. Press S to skip mass storage detection.  
(If Enter is pressed, the installation program will then scan for SCSI 
adapters.  It will find the NCR PCI (53C810) driver , NCRC810.SYS, which 
is an older version of the NCRC8XX.SYS driver.  Let installation 
continue.  When installation completes, change the driver.  To change 
the driver, see the "Existing System Installation" section.)

5. A screen will display the SCSI adapters found. Choose S to configure 
additional SCSI adapters.

6. Move the highlight bar to Other and press Enter. 

7. When prompted, insert the SCSI Drivers disk. 

8. The NCR PCI (53C8XX) Miniport driver should be highlighted. Press 
Enter to proceed.

9. NT should now recognize the Miniport driver and the SCSI hardware. 

At this point, simply follow the Microsoft Windows NT installation 
procedure.


Existing System Installation

This procedure will install the NCRC8XX.SYS driver onto an existing 
Windows NT system. Use this procedure when NT has been previously 
installed onto an IDE drive.

1. Boot NT and log on as Administrator.

2. Open the Main window in the Program Manager.

3. Double-click on Windows NT Setup.

4. Choose Options, then choose Add/Remove SCSI Adapters..., then 
choose Add. (If NCRSDMS.SYS or NCRC810.SYS drivers are listed, select 
the driver(s) and choose Remove before adding a new driver).

5. On the SCSI Adapter list, go to the bottom and choose Other.

6. When prompted, insert the SCSI Drivers disk. For the path to the
files, leave a:\ and select OK.

7. On the Select OEM Option menu, the Miniport driver should be 
highlighted. If it is not highlighted, select it. Choose OK.

8. On the Select SCSI Adapter Option menu, choose Install with the 
NCR PCI (53c8XX)driver highlighted.

At this point, the following message may occur:

The driver(s) for this SCSI Adapter are already on the system. Do you 
want to use the currently installed driver(s) or install new one(s)?

Selecting Current will use the driver already on the system, and 
selecting New will use the driver on the floppy disk. Either option 
leads to step nine.

9. For the path to the OEM SCSI adapter files, leave a:\ and select 
Continue.

10. On the SCSI Adapter Setup menu, choose Close.

11. Rebooting will load the NCR PCI (53c8XX) Miniport driver.


* Command Line Options *

There are no command line options with the Windows NT 3.5 device driver.


* Trouble Shooting *

DURING INSTALLATION, NO SCSI DEVICES ARE FOUND.

a. Insure that the custom setup is chosen on the Setup Method screen.

b. Insure that all devices are powered on and terminated correctly.

c. Check that no devices have duplicate SCSI IDs.


SYSTEM CRASHES DURING INSTALLATION WITH A MESSAGE INDICATING 
INACCESSIBLE BOOT DEVICE.

a. This error is usually associated with an IRQ, DMA channel, I/O (chip) 
address, or BIOS address conflict. Set the SCSI host bus adapter (HBA) 
board to use a different interrupt.


A DISK DRIVE IS RECOGNIZED AS SEVEN DIFFERENT DEVICES WHEN ONLY ONE IS 
PHYSICALLY CONNECTED TO THE SCSI BUS.

a. This error is usually caused by older SCSI devices incorrectly 
indicating to NT that they support multiple LUNs. Contact the device 
manufacturer for a firmware upgrade.