
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
= Adaptec 7800 Family Manager Set v3.02.2 =
=                                         =
=     README for Microsoft Windows NT     =
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

The following information is available in this README file:

   o Supported Hardware
   o Changes From Prior Release
   o Installation Instructions
         Installing Windows NT v4.0 with the FMS Driver
         Installing Windows NT v3.5x with the FMS Driver 
         Updating the FMS Driver under Windows NT v4.0
         Updating the FMS Driver under Windows NT v3.5x
         Removing a Host Adapter on Windows NT v4.0
         Removing a Host Adapter on Windows NT v3.5x
         Swapping a Host Adapter for both v3.5x and v4.0
   o Known Issues
   o Additional Notes
   o NT SCSI Command Line Options
   o Adaptec Driver Command Line Options
   o Diskette Contents
   o Contacting Adaptec



=-=-=-=-=-=-=-=-=-=
Supported Hardware
=-=-=-=-=-=-=-=-=-=

The following Adaptec SCSI Host Adapters are supported by the 7800 FMS v3.02.2.  
The first list (Fast/Ultra Adapters) is supported by the AIC78xx.SYS driver, 
while the second list (Ultra2 Adapters) is supported by the AIC78U2.SYS 
driver.

   Fast/Ultra Adapters  Description
   -------------------  -----------
   AVA-2902I            PCI-to-Fast SCSI (non-bootable, internal)
   AVA-2902E            PCI-to-Fast SCSI (non-bootable, external)
   AVA-2903             PCI-to-Fast SCSI (non-bootable, internal, external)
   AVA-2904             PCI-to-Fast SCSI (non-bootable)
   AVA-2906             PCI-to-Fast SCSI (non-bootable, internal, external)
   AHA-2910C            PCI-to-Fast SCSI (non-bootable)
   AHA-2915C            PCI-to-Fast SCSI (non-bootable)
   AHA-2920C            PCI-to-Fast SCSI
   AHA-2930C            PCI-to-Ultra Single-ended SCSI
   AHA-2940             PCI-to-Fast SCSI
   AHA-2940W            PCI-to-Fast and Wide Single-ended SCSI
   AHA-2940AU           PCI-to-Ultra Single-ended SCSI
   AHA-2940U            PCI-to-Ultra Single-ended SCSI
   AHA-2940U Dual       DualChannel PCI-to-Ultra Wide Internal Single-ended SCSI
                        with 50-pin external connector
   AHA-2940UW           PCI-to-Ultra Wide Single-ended SCSI
   AHA-2940UW Pro       PCI-to-Ultra Wide Single-ended SCSI (See Changes From 
                        Prior Release Section)
   AHA-2940UW Dual      DualChannel PCI-to-Ultra Wide Single-ended SCSI
                        with 68-pin external connector

   AHA-2944W            PCI-to-Fast and Wide Differential SCSI
   AHA-2944UW           PCI-to-Ultra Wide Differential SCSI
 
   AHA-3940             MultiChannel PCI-to-Fast SCSI
   AHA-3940W            MultiChannel PCI-to-Fast and Wide SCSI
   AHA-3940U            MultiChannel PCI-to-Ultra SCSI
   AHA-3940UW           MultiChannel PCI-to-Ultra Wide SCSI
   AHA-3940UWD          MultiChannel PCI-to-Ultra Wide SCSI with dual
                        external VHD connectors
   AHA-3944UWD          MultiChannel PCI-to-Ultra Wide Differential SCSI
                        with dual external VHD connectors
   AHA-3940AU           MultiChannel PCI-to-Ultra SCSI
   AHA-3940AUW          MultiChannel PCI-to-Ultra Wide SCSI
   AHA-3940AUWD         MultiChannel PCI-to-Ultra Wide SCSI with dual
                        external VHD connectors
   AHA-3944AUWD         MultiChannel PCI-to-Ultra Wide Differential SCSI
                        with dual external VHD connectors

   AHA-4944W            Quad Channel PCI-to-Fast and Wide Differential SCSI
   AHA-4944UW           Quad Channel PCI-to-Ultra Wide Differential SCSI

   APA-1480             CardBus-to-Ultra Single-ended SCSI

   AIC-7850             Single-chip PCI-to-Fast SCSI
   AIC-7855             Single-chip PCI-to-Fast SCSI
   AIC-7856             Single-chip PCI-to-Fast SCSI
   AIC-7860             Single-chip PCI-to-Ultra SCSI
   AIC-7870             Single-chip PCI-to-Fast and Wide SCSI
   AIC-7880             Single-chip PCI-to-Ultra Wide SCSI
   AIC-7895             Single-chip PCI-to-MultiChannel Ultra Wide SCSI

   Ultra2 Adapters      Description
   ---------------      -----------
  
   AHA-2940U2 OEM       PCI-to-Ultra2 Wide LVD/Single-ended SCSI 
   AHA-2940U2B          PCI-to-Ultra2 Wide LVD SCSI
   AHA-2940U2W          PCI-to-Ultra2 Wide LVD/Single-ended SCSI
   AHA-2950U2B          64-bit PCI-to-Ultra2 Wide LVD SCSI
   AHA-3950U2B          64-bit PCI-to-MultiChannel Ultra2 Wide LVD SCSI
   AHA-3950U2D          64-bit PCI-to-MultiChannel Ultra2 Wide LVD SCSI
                        with dual external VHD connectors

   AIC-7890             Single-chip PCI-to-Ultra2 SCSI
   AIC-7891             Single-chip 64-bit PCI-to-Ultra2 SCSI
   AIC-7896             Single-chip PCI-to-MultiChannel Ultra2 SCSI
   AIC-7897             Single-chip 64-bit PCI-to-MultiChannel Ultra2 SCSI



=-=-=-=-=-=-=-=-=-=-=-=-=-=
Changes From Prior Release
=-=-=-=-=-=-=-=-=-=-=-=-=-=

This release of the Adaptec 7800 Family Manager Set v3.02.2 adds the 
following support from the previous v3.02 release:

   o Support for the AHA-2940UW Pro
       1. Adds the ability to use all three connectors at the same time
       2. Current Sensing Circuit checks for improper termination
   o Support for the AHA-3950U2D
       1. Adds two external VHD connectors instead of one wide external 
          connector


=-=-=-=-=-=-=-=-=-=-=-=-=-=
Installation Instructions
=-=-=-=-=-=-=-=-=-=-=-=-=-=

This section describes installing and using the Adaptec 7800 Family Manager
Set Driver (AIC78XX.SYS & AIC78U2.SYS) for Windows NT.

If you are performing a first time Windows NT installation, see the 
"Installing Windows NT v4.0 with the FMS Driver" or "Installing Windows 
NT v3.5x with the FMS driver" sections below.

If Windows NT is already installed on your system, see the "Updating the 
FMS Driver under Windows NT v4.0" or "Updating the FMS Driver under 
Windows NT v3.5x" sections below.


Installing Windows NT v4.0 with the FMS Driver
----------------------------------------------

The following instructions explain how to install the Adaptec 7800 Family
Manager Set, while installing Windows NT v4.0.

    1 Start your system with the Windows NT Boot Diskette in 
      the floppy drive.
    
    2 Insert diskette #2 when prompted.  After a few moments you will see
      a blue screen.   To setup Windows NT now, press ENTER. 
      
    3 Press S to skip Windows NT Setup's auto detection of your SCSI 
      adapter.
      
    4 Press S again to specify an additional device.
    
    5 Press ENTER to select Others, and insert the Adaptec 7800 Family
      Manager Set diskette.
    
    6 For non-Ultra2 host adapters, Select the "Adaptec AHA290x/
      291x/294x/394x/4944/AIC78xx PCI SCSI Controller(NT 4.0)" 
      and press ENTER.  For Ultra2 host adapters, Select the "Adaptec 
      AHA-294xU2/295xU2/395xU2/AIC-789x PCI SCSI Controller(NT 4.0)" and 
      press ENTER.
                
    7 If you want to add other host adapters (that are not a part of the
      7800 Family), do so at this time by pressing 'S' and repeating step 5
      for each additional adapter and inserting the appropriate disk
      provided by the hardware manufacturer.  The Adaptec 7800 Family host
      adapters use the same driver; it is not necessary to install the
      AIC78XX.SYS or AIC78U2.SYS driver again.
      
    8 Press ENTER to continue with the Windows NT operating system setup.
      Follow the instructions given on screen and in the Windows NT
      installation documentation.
     

Installing Windows NT v3.5x with the FMS Driver
-----------------------------------------------

The following instructions explain how to install the Adaptec 7800 Family
Manager Set, while you are installing Windows NT v3.5x.

    1 If you choose to install Windows NT from a floppy drive, locate the 
      Windows NT Disk 1 for Floppy Installation.

      If you are installing from a CD-ROM drive, locate the Windows NT Setup 
      Disk 1 for CD-ROM Installation.

    2 Insert the diskette into drive A (not drive B) and turn on your
      computer. When prompted, insert Windows NT Disk 2.

    3 From the Welcome to Setup Screen, press ENTER to set up Windows NT.

    4 When prompted, select Custom setup.

      (NOTE:  If you select Express setup, the embedded AIC78XX.SYS driver 
      included with Windows NT will be loaded and not the most recent 
      version of the driver available from the Adaptec 7800 Family Manager
      Set diskette for Windows NT.  If you are installing the Ultra2 
      host adapters such as the AHA-2940U2W, you cannot select Express 
      setup because the AIC78U2.SYS is not embedded.)

    5 Press S to skip mass storage device detection. This allows you to 
      manually select the Adaptec 7800 Family Manager Set for your host
      adapter.

    6 Since mass storage device detection was skipped in the previous step, 
      Windows NT Setup displays none in the list of recognized devices. 
      Press S to configure additional SCSI adapters.

    7 From the list of additional SCSI adapters, expand the list, select 
      Other, and press ENTER. (Requires disk provided by a hardware 
      manufacturer).

    8 Insert the Adaptec 7800 Family Manager Set diskette into drive A
      and press ENTER.

    9 The screen displays the adapter drivers supported on the diskette.
      For non-Ultra2 Host Adapters, Select the "Adaptec AHA290x/291x/
      294x/394x/4944/AIC78xx PCI SCSI Controller(NT 3.5x)" 
      and press ENTER  or
      For Ultra2 host adapters, Select the "Adaptec AHA-294xU2/295xU2/
      395xU2/AIC-789x PCI SCSI Controller(NT 3.5x)" and press ENTER.
   
  10 If you want to add other host adapters (that are not a part of the 
      7800 Family), do so at this time by repeating Step 7 for each 
      additional adapter and inserting the appropriate disk provided by the
      hardware manufacturer. The Adaptec 7800 Family host adapters use the 
      same driver; it is not necessary to install the aic78xx.sys or 
      aic78u2.sys driver again.

   11 Press ENTER to continue with the Windows NT operating system setup. 
      Follow the instructions given on screen and in the Windows NT 
      installation documentation.


Updating the FMS Driver under Windows NT v4.0
---------------------------------------------

Follow these instructions only if Windows NT v4.0 is already installed.

     1 Click the Start button on the Winows NT task bar, and the point
       to Settings.
       
     2 Open the Control Panel, double-click on SCSI Adapters.
     
     3 Select the Drivers tab, and click the Add button.
     
     4 In the "Install Driver" window, click the Have Disk button.
     
     5 Insert the Adaptec 7800 Family Manager Set driver diskette.
     
     6 At the "Copy manufacturer's files from" text box, type a:\winnt\4_0,
       and click OK. 
     
     7 At the Install Driver window, select the driver, then click OK.
     
     8 In response to "Do you want to use the currently installed driver(s) 
       or install new one(s)", select the New button.
     
     9 Again type a:\winnt\4_0 and click continue.  The driver is now 
       installed.
     
    10 You must restart your computer for the changes to take effect.
       Click Yes to restart your computer.  Click No to return to the
       SCSI Adapters window.


Updating the FMS Driver under Windows NT v3.5x
----------------------------------------------

Follow these instructions only if Windows NT v3.5x is already installed.

    1 Select and start the Windows NT Setup program. (Its icon is usually 
      found in the Main program group.) There is a brief pause while Windows 
      NT Setup scans your hardware configuration.

    2 Select the Options pull-down menu and then select Add/Remove SCSI 
      Adapters. The SCSI Adapter setup program displays a list of all host 
      adapters currently installed.

    3 Click the Add button to add another host adapter type to the list. A 
      list of additional SCSI adapters appears.

    4 Expand the list of additional SCSI adapters; select Other and press 
      ENTER. (Requires disk provided by the hardware manufacturer).

    5 Insert the Adaptec 7800 Family Manager Set diskette for Windows
      NT into drive A; enter the following path to the installation files
      and then click OK.

      a:\winnt\3_5

    6 a.  For non-Ultra2 Host Adapters: 
      The screen displays the adapter drivers supported on the diskette. 
      The "Adaptec AHA290x/291x/294x/394x/4944/AIC78xx PCI SCSI Controller
      (NT 3.5x)" driver is highlighted by default,
      Click OK. The driver is added to the list of SCSI adapters. Click Install.
      b.  For Ultra2 Host Adapters: 
      The screen displays the adapter drivers supported on the diskette. 
      Select "Adaptec AHA-294xU2/295xU2/395xU2/AIC-789x PCI SCSI Controller
      (NT 3.5x)". Click OK. The driver is added to the list of SCSI adapters.
      Click Install. 
      
    7 At this point, Windows NT Setup checks to see if the specified driver 
      has already been copied to the system disk.

    8 If the following message appears, click New to replace the existing 
      driver and skip to Step 10.

      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).
      
      If the following message appears, continue with Step 9:
      Please enter the full path to the Windows NT SCSI Adapter files.

    9 Change the path to the directory (i.e., a:\winnt\3_5) with the desired 
      device driver, then click Continue.

      The device driver is copied to your system disk and the Windows NT 
      configuration is updated so that the new device driver loads when 
      Windows NT reboots.

   10 When the installation is complete, Windows NT Setup again displays a
      list of currently installed host adapter types. Verify that the new 
      host adapter appears on the list; the string should look similar to 
      "Adaptec AHA290x/291x/294x/394x/4944/AIC78xx PCI SCSI Controller(NT 3.5x)"
      for non-Ultra2 host adapters 
      or "Adaptec AHA-294xU2/295xU2/395xU2/AIC-789x PCI SCSI Controller
      (NT 3.5x)" for Ultra2 host adapters.

   11 Add other types of host adapters if necessary (see Step 4 above), or 
      click Close to exit the SCSI adapters portion of Windows NT Setup, 
      and then close the program.

   12 When you see this message, click OK to exit:

      The changes you have made will not take effect until the computer is 
      restarted

      If this message does not appear, no changes have been made to the 
      Windows NT system configuration.

   13 Restart your computer and Windows NT. It is possible that some drive 
      letter assignments may change from the previous configuration.



Removing a Host Adapter from Windows NT v4.0
--------------------------------------------

Removing a host adapter can be as simple as physically removing it from the 
slot when your computer is shut down. Windows NT boots and functions 
properly in this configuration, but a warning message is generated every 
time you boot Windows NT.

(CAUTION:  If you have removed a host adapter but still have other host 
adapters of the same type installed in your computer, do not use Windows NT 
Setup to remove the device driver.)

To eliminate the warning message, you must update the Windows NT software 
configuration, as described in the following steps:

     1 Open the Control Panel, double-click on SCSI Adapters.
     
     2 Select the Drivers tab.
     
     3 Select the Driver you wish to remove.

       a.  For non-Ultra2 host adapters: 
       Select the driver you plan on removing and click the Remove 
       button.  The driver will appear as one of the following:
       "Adaptec AHA290x/291x/294x/394x/4944/AIC78xx PCI SCSI Controller
      (NT 4.0)"
       or                      
      "Adaptec AHA-294x/AHA-394x/AHA-4944 or AIC-78xx PCI SCSI Controller
       (NT 4.0)"
       or
       "Adaptec AHA-294X/AHA-394X or AIC-78XX PCI SCSI Controller"
       
       b.  For Ultra2 host adapters:
       Select the driver you plan on removing and click the Remove 
       button.  The driver will appear as the following:
       "Adaptec AHA-294xU2/295xU2/395xU2/AIC-789x PCI SCSI Controller(NT 4.0)"
       
     4 If you are sure you are removing the correct host adapter type, 
       click Yes.
     
     5 You must restart your computer for the changes to take effect.
       Click Yes to restart your computer.  Click No to return to the
       SCSI Adapters window.



Removing a Host Adapter from Windows NT v3.5x
---------------------------------------------

Removing a host adapter can be as simple as physically removing it from the 
slot when your computer is shut down. Windows NT boots and functions 
properly in this configuration, but a warning message is generated every 
time you boot Windows NT.

(CAUTION:  If you have removed a host adapter but still have other host 
adapters of the same type installed in your computer, do not use Windows NT 
Setup to remove the device driver.)

To eliminate the warning message, you must update the Windows NT software 
configuration, as described in the following steps:

    1 Select and start the Windows NT Setup program. There is a brief pause 
      while Windows NT Setup scans your hardware configuration.

    2 Select the Options pull-down menu and then select Add/Remove SCSI 
      Adapters. The SCSI Adapter setup program displays a list of all host 
      adapters currently installed.

    3 Select the host adapter you want to remove and click the Remove 
      button. When the Windows NT Setup program asks you for confirmation, 
      click OK.

      Because SCSI device drivers are loaded during system bootup and 
      because they may be needed to load Windows NT itself, a screen may 
      appear warning you that Windows NT may not start if you remove the 
      SCSI adapter.

    4 If you are sure you are removing the correct host adapter type, click 
      OK.

    5 Return to Step 3 if you want to remove driver support for other types 
      of host adapters, or click Close to exit the SCSI adapters portion of 
      Windows NT Setup.

    6 Close the Windows NT Setup program. When the following message 
      appears, click OK to exit.

      The changes you have made will not take effect until the computer is 
      restarted.

      If this message does not appear, no changes have been made to the 
      Windows NT system configuration.

    7 Restart the computer.

      (NOTE:  Windows NT Setup does not delete the device driver from your 
      system disk; it only updates Windows NT software configuration 
      information so that the device driver is no longer loaded during 
      system bootup.)


Swapping a Host Adapter for both v3.5x and v4.0
-----------------------------------------------

Swapping one type of host adapter for another is similar to the procedure 
for adding a host adapter. The important distinction is that you make all 
software configuration changes while Windows NT is running and before you 
make the hardware changes.

(NOTE: If you do not install the driver that comes with the new host 
adapter, it may result in Windows NT failing to boot.)

    1 Install the driver for the new host adapter by following the steps in 
      Updating Windows NT with the Driver, above.

It is not essential to remove the device driver for the host adapter you 
are replacing. Windows NT dynamically detects the absence or presence of 
host adapter hardware, and no problems should arise if you leave the 
existing device driver installed. You may remove the device driver later, 
after you have successfully rebooted Windows NT. However, if you leave the 
driver in, the system alerts you with an error message of the extra device 
driver every time you boot. See Removing a Host Adapter above.

    2 Once the new device driver is installed, shut down Windows NT and 
      replace the existing host adapter. 

    3 Restart your computer and Windows NT. It is possible that some drive 
      letter assignments may change from the previous configuration.


=-=-=-=-=-=-=
Known Issues
=-=-=-=-=-=-=
    
    o For Windows NT v3.5x, the embedded (included) miniport driver on the 
      CD-ROM or diskettes, does not include support for Ultra host
      adapters (i.e., host adapters with the letters AU, U, UW, AUW, and
      AUWD at the end of the model number) and AHA-2944W.  Refer to the
      installation instructions in the "Installing Windows NT v3.5x with the FMS
      Driver" section.
    
    o For Windows NT v4.0, up to Service Pack 3, the embedded (included) 
      miniport driver on the CD-ROM does not include support for AHA-3940AUWD,
      AHA-3944AUWD, or AHA-4944W. Refer to the installation instructions in 
      the "Installing Windows NT v4.0 with the FMS driver" section.
    
    o An issue exists in Windows NT 3.5x with the Windows NT Setup 
      Application.  In the Add/Remove SCSI Adapters selection, under the
      Options pull-down menu, you should see:
      
      "Adaptec AHA-294x/AHA-394x/AHA-4944 or AIC-78xx PCI SCSI Controller 
      (NT 3.5x)"
      
      and possibly one or more of the following
      
      "Adaptec AHA-294x/AIC-78xx (PCI)"
      "Adaptec AHA-2940/AIC-78xx (PCI) NT v3.5x"
      "Adaptec AHA-290x/291x/294x/394x/4944/AIC-78xx PCI SCSI Controller
      (NT 3.5x)"

      as listed choices.  This behavior is due to differences between
      the embedded SCSI.INF file and the OEMSCSx.INF that was created when
      installing/updating the AIC78XX.SYS. All of these choices, refer to
      the same Adaptec 7800 Family Manager Set driver in your system.
      Removing any one of them, without the intention of either replacing
      or upgrading, may result in your system failing to boot.



=-=-=-=-=-=-=-=-=
Additional Notes:
=-=-=-=-=-=-=-=-=

    o If disconnection is disabled under SCSISelect for a hard disk device,
      the system may hang if the hard disk device supports tagged queuing.
      It is recommended to always enable disconnection for hard disk
      devices.  By default, disconnection is enabled so no action is
      required.  If for some unique requirements disconnection has to be
      absolutely disabled for hard disk devices, you can turn off tagged
      queue requests by editing the Windows NT Registry.  You can do so
      by following these instructions:

      1 Select Run from the File pull-down menu (Windows NT 3.5x), or Run
        from the Start button (Windows NT 4.0).
  
      2 Enter REGEDT32 to run the Registry Editor.
     
      3 a. For non-Ultra2 host adapters:
         Open \HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\aic78xx.
        b. For Ultra2 host adapters:
         Open \HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\aic78u2.
          

      4 Create a key named Parameters by selecting Add Key from the Edit
        pull-down menu and entering "Parameters" (without quotations) in
        the edit-box for Key Name.  Leave the Class edit-box blank.
         
      5 Open Parameters and create a key named Device by selecting Add Key
        from the Edit pull-down menu.  Enter "Device" (without quotations)
        in the Key Name edit-box. Leave the Class edit-box blank.
         
      6 Open Device. Select the Add Value option from the Edit pull-down
        menu. In the Value Name edit-box, enter "DisableTaggedQueuing"
        (without quotations). Select the Data Type REG_SZ from the
        droplist combo box.
  
      7 Shutdown and restart Windows NT.
      
      8 Set Enable Disconnection to No for your particular device(s) in
        SCSISelect during bootup. (See your Host Adapter manual on how to
        use SCSISelect).
      

    o If the logical driver letters assigned by the BIOS change when the NT
      operating system is running, it's not an error.  To preserve drive
      letter assignments between BIOS and NT, run the NT disk administrator
      and choose permanent drive letters assignments as an option.  NT will
      then preserve logical driver letter assignments across boots and
      adapters.
      
    o The boot manager for Windows NT contains recovery logic to allow you
      to return to the last known good configuration. If you have changed
      your host adapter configuration and Windows NT no longer boots, follow
      these steps to recover:
    
      1 Undo any hardware changes you have made to the computer since it was 
        last operational.
    
      2 Reboot the computer. Watch the display carefully during bootup. If
        the following message appears, press the Spacebar.
        
        Press spacebar NOW to invoke the Last Known Good menu
        
        Follow the instructions on the screen to continue booting with the
        last known good configuration.  For Windows NT 4.0 only, hit the
        letter "L", to switch to the last known good configuration.
    
      3 Once your computer is operational again, check all of the hardware
        and software configuration changes you want to make. Look
        specifically for conflicts with parts of the existing system
        configuration that are not being changed.


-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
NT SCSI Command Line Options
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

The following table shows driver-specific command line options:

NAME                     DEFINITION                       VALID      DEFAULT
                                                          VALUES     VALUE
-----------------------------------------------------------------------------
MaximumSGList        Specify maximum number of        17 - 255    17
 (type=REG_DWORD)        scatter-gather elements 
                                for Windows NT 4.0 only 

DisableTaggedQueuing  Disables Tagged Queueing        None
 (type=REG_SZ)


To enter Windows NT SCSI-specific parameters, follow these steps:

      1 Select Run from the File pull-down menu (Windows NT 3.5x), or Run
        from the Start button (Windows NT 4.0).
  
      2 Enter REGEDT32 to run the Registry Editor.
     
      3 a. For non-Ultra2 host adapters:
         Open \HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\aic78xx.
         b. For Ultra2 host adapters:
        Open \HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\aic78u2.
          

      4 Create a key named Parameters by selecting Add Key from the Edit
        pull-down menu and entering "Parameters" (without quotations) in
        the edit-box for Key Name.  Leave the Class edit-box blank.
         
      5 Open Parameters and create a key named Device by selecting Add Key
        from the Edit pull-down menu.  Enter "Device" (without quotations)
        in the Key Name edit-box. Leave the Class edit-box blank.

        To specify a certain host adapter, append Device with the
        number of the host adapter.  For example, type Device0 for
        the first host adapter, Device1 for the second, etc.  If you
        omit the host adapter number, the configuration information
        applies to all 7800 Family host adapters.
         
      6 Open Device. Select the Add Value option from the Edit pull-down
        menu. In the Value Name edit-box, enter one of the valid parameter
        values.
        Make sure to enter the appropriate Data Type for the value. 
        To enter additional values, repeat steps 5 and 6.
  
      7 Shutdown and restart Windows NT.
      
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Adaptec Driver Command Line Options
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

The following table shows driver-specific command line options:

NAME                     DEFINITION                       VALID      DEFAULT
                                                          VALUES     VALUE
-----------------------------------------------------------------------------

/MAXTAGS=nnn             Specify tagged command           1 - 255    128
 (type=REG_SZ)           queue depth

To enter driver-specific parameters, follow these steps:

    1 Select Run from the File pull-down menu (Windows NT 3.5x), or Run
      from the Start button (Windows NT 4.0).
    
    2 Type regedt32 and press ENTER.
    
    3 Open the registry list to the following location:
      \HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\
      aic78xx\Parameters\Device\DriverParameters
      
      If the \Parameters\Device\DriverParameters key already exists,
      skip to step 10 below to begin entering parameters.  If the keys
      do not yet exist, you will need to create them by continuing with
      step 4.
    
    4 a. For non-Ultra2 host adapters:
      Click on the aic78xx key.
      b. For Ultra2 host adapters:
      Click on the aic78u2 key.     

    5 Under the Edit pull-down menu, select Add Key.
    
    6 Type Parameters as the name for the new key, and then press ENTER.
    
    7 Click on the Parameters key.
    
    8 Under the Edit pull-down menu, select Add Key.
    
    9 Type Device as the name for the new key, and press ENTER.
    
      To specify a certain host adapter, append Device with the
      number of the host adapter.  For example, type Device0 for
      the first host adapter, Device1 for the second, etc.  If you
      omit the host adapter number, the configuration information
      applies to all 7800 Family host adapters.
   
   10 Click on the Device key.
   
   11 Under the Edit pull-down menu, select Add Value.
   
   12 Type DriverParameters as the name for the new key, and then
      press ENTER.  Make sure the Data Type is REG_SZ.
      
   13 A String Editor text box will appear, enter parameters in the
      text box.  When entering multiple parameters, each parameter
      must be separated by a space.
      
      

=-=-=-=-=-=-=-=-=-=
Diskette Contents
=-=-=-=-=-=-=-=-=-=

The following files are included in this diskette:

    o \DISK1                  - Disk identifier file
    o \TXTSETUP.OEM           - Install script used during NT installation
    o \WINNT\README.TXT       - Readme file for Windows NT (this file)
    o \WINNT\README.HTM       - HTML version of README.TXT
    o \WINNT\3_5\AIC78XX.SYS  - 7800 series driver for Windows NT v3.5x
    o \WINNT\3_5\AIC78u2.SYS  - Ultra2 series driver for Windows NT v3.5x
    o \WINNT\3_5\OEMSETUP.INF - Install script used by Windows NT Setup
    o \WINNT\4_0\AIC78XX.SYS  - 7800 series driver for Windows NT v4.0
    o \WINNT\4_0\AIC78u2.SYS  - Ultra2 series driver for Windows NT v4.0
    o \WINNT\4_0\OEMSETUP.INF - Install script used by Windows NT Setup



=-=-=-=-=-=-=-=-=-=
Contacting Adaptec
=-=-=-=-=-=-=-=-=-=

Electronic Support
------------------

Technical information, including product literature, answers to commonly
asked questions, information on software upgrades and other topics is
available electronically through the following:

   o Adaptec World Wide Web (WWW) site at http://www.adaptec.com. 
   o File Transfer Protocol (FTP) server at ftp.adaptec.com. 
   o To submit your electronic mail message to Adaptec Technical Support
     use the product support information Webmail form at:
     http://www.adaptec.com/support/webmail.html. 
   o Adaptec USA Bulletin Board Service (BBS) at 408-945-7727; supports up 
     to 28,800 bps (bits per second), 8 data bits, 1 stop bit, no parity. 
     No product literature is available on the Adaptec BBS. 
   o Interactive Fax System at 303-684-3400; available 23 hours a day, 7 
     days a week. The fax system is out of service 1 hour each day. 



Technical and Product Support
-----------------------------
   o To speak with a product support representative, call 408-934-SCSI
     (7274), M-F, 6:00 a.m. to 5:00 p.m., Pacific Time. After hours, on
     weekends, and on holidays, product support is also available for a 
     fee at 800-416-8066.
   o For electronic technical support and information about many of 
     Adaptec's other electronic support services, or to use the Adaptec
     Interactive Support System call 800-959-SCSI (7274) or 408-945-2550,
     24 hours a day, 7 days a week.  The system prompts you with 
     questions regarding your problem and then provides step-by-step
     troubleshooting instructions.


Sales and Ordering Information
------------------------------

   o For sales information, call 800-442-SCSI (7274), M-F, 6:00 a.m. to
     5:00 p.m., Pacific Time, or 408-945-8600 and ask for Inside Sales, 
     M-F, 8:00 a.m. to 5:00 p.m., Pacific Time.
   o To order Adaptec software and SCSI cables, call 800-442-SCSI (7274),
     M-F, 6:00 a.m. to 5:00 p.m., Pacific Time.
   o To request additional documentation for Adaptec products, call
     800-934-2766 or 510-732-3829, M-F, 6:00 a.m. to 5:00 p.m., Pacific Time.



