Tape Device Times Out on a Northwest Micro Pentium Computer

• Microsoft Windows NT operating system version 3.1
• Microsoft Windows NT Advanced Server version 3.1
• Microsoft Windows NT Workstation versions 3.5 and 3.51
• Microsoft Windows NT Server versions 3.5 and 3.51

SYMPTOMS

When you run the Windows NT Backup program (NTBACKUP.EXE) with a Sony 5200 DAT tape device connected to an Adaptec 1540 SCSI controller on a Northwest Micro Pentium computer, the following event appears in the Event Viewer:

   Event ID: 7026
   Source: Service Control Manager
   Type: Error
   Description: The following boot-start or system-start driver(s)
   failed to load: AHA154x

   No catalogue found

CAUSE

This problem occurs the tape device times out. The Northwest Micro Pentium computer is not listed in the Windows NT Hardware Compatibility List (HCL).

RESOLUTION

To correct this problem, you must modify the Registry.

WARNING: Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.

1. Start the Registry Editor (REGEDT32.EXE) and locate the following Registry subkey:

         HKEY_CURRENT_USER\Software\Microsoft\NTBackup\Hardware
   

2. From the Edit menu, select Add Value.

3. Add the following:

         Value Name: Drive Settling Time
         Data Type:  REG_SZ
         String: 120
   

         NOTE: The default value is 60.