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NCR53C810/820/825 SCSI adapter device driver

Installing the NCR53C8XX SCSI Adapter Device Driver for NEXTSTEP Release 3.2 for Intel Processors

This file lists which computer systems are supported by the NCR53C8XX SCSI adapter device driver. Also included are instructions for driver installation on an Intel CPU-based computer running NEXTSTEPä Release 3.2. The driver is distributed in an Installer package file named NCR53C810.pkg.

Supported SCSI Adapters

The NCR53C8XX SCSI adapter device driver supports SCSI adapters that are based on NCR53C810, NCR53C820 or NCR53C825 chips, including  on-board controllers.   The NCR53C8XX SCSI adapter device driver lets you take advantage of all PCI bus computer systems.  A list of 'Talus certified' systems and add-on cards is available by request from info@talus.com.  If you will be using a DECpc XLä system from Digital Equipment Corp., please be sure to read the "DECpc XL Implementation" at the end of this document.

Toshiba CD-ROM Drive Support

Toshiba CD-ROMs are not compatible with the CDplayer application.  The XAmode utility included on this disk allows the CD-ROM to read Photo-CDs with this driver.  The included GKPlayer utility will play audio CD's on these CD-ROMs.  Also included in this package is the PASPlus utility, which implements a mixer for the PAS.  Thanks to Gerd Knops for these packages, but Talus Imaging and Communications Corp. makes no warranty, either express or implied, on the function or suitability of these freeware applications.  

Using the enclosed floppy during NEXTSTEP installation

At the end of the initial floppy-based installation, the  program asks: "Do you want to use additional drivers during installation?"  Insert the NCR53C8xx floppy and answer "YES". Select NCR53C8XX SCSI Adapter and continue installation as usual.  Keep the disk handy, as the install process will ask for it again, but now NEXSTSTEP will use your NCR53C8XX SCSI adapter!

Installing the Device Driver

1.	If you received the NCR53C810.pkg file via NeXTmailä or another electronic source, place a copy of the file in a location where you can access it when you log in as root.
2.	Log in as root.  Only the superuser, root, can install the device driver. If you're not sure how to log in as root, see your system administrator.
3.	If you received the NCR53C810.pkg file on a floppy disk, insert the disk in the floppy disk drive and choose Check for Disks from the Workspace Managerä application's Disk menu. When the disk icon appears in the File Viewer, double-click it to open it.
4.	Double-click the NCR53C810.pkg file.
5.	Click the Install button in the Installer package window. When the panel asks you to confirm that you want to install the package, click Install. Then click Continue in the panel that warns you you're about to overwrite existing files.
6.	After copying all files start up Configure.app in /NextAdmin directory.
7.	Click the SCSI icon at the top of Configure's Summary window, choose NCR53C8XX SCSI adapter
8.	Choose Save from Configure's Configuration menu and then choose Quit.
9.	When the installation is complete, choose Quit from the Installer menu.
10.	If you created a copy of the NCR53C810.pkg file in step 1, drag the copy to the recycler. 
11.	Choose Log Out from the Workspace menu and then click the Restart button in the Login window.
	
	You must restart your computer after installing and configuring the updated device driver.  The next time you start up your computer, it will use the new SCSI driver.

NOTE: The current version of the driver supports multiple NCR53C8XX adapters. However this feature may not work on some PCI realizations.  Certified cards and configurations are forthcoming.

For information about the logging in and out, the Workspace Manager application, and the Installer application, see the NEXTSTEP User's Guide. For information about the Configure application, see Installing and Configuring NEXTSTEP Release 3.2 for Intel Processors.

DECpc XL Implementation Notes
	The caching setup on the DEC XL has some problems which can interfere with driver/NeXTSTEP performance on these machines. Our best solution to this problem (and to problems the XL and NeXTSTEP in general) is to disable all caches during installation.  After installation, set the secondary cache setting to "enable WT" and enable the primary cache in the system BIOS.

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