STOP Message 0x0000007B Problems with Second SCSI Controller

 Last reviewed: May 14, 1997
Article ID: Q113573

The information in this article applies to:
  • Microsoft Windows NT operating system version 3.1
  • Microsoft Windows NT Advanced Server version 3.1

SYMPTOMS

After you add a second SCSI controller and reboot the computer, the following STOP error message appears: 

   STOP: 0x0000007B
   INACCESSIBLE BOOT DEVICE

CAUSE

Windows NT is loading the recently added SCSI controller (miniport) before the previously installed SCSI boot controller.

RESOLUTION

WARNING: Using the 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 the Registry Editor can be solved. Use this tool at your own risk.

The configuration settings that control SCSI miniport load order are in the registry in the key(s): 

   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\"DeviceName"
These values determine how the SCSI device loads:
  • Start:REG_DWORD:0 Value of 0x0 for autostart, 0x4 for disabled
  • Tag:REG_DWORD:0xC Determines load order of SCSI miniport drivers
  • Type:REG_DWORD:0x1 0x1 (device driver)

Here is how to adjust the load order of SCSI miniport drivers:

  1. If you are getting a STOP message, reboot using the last known good configuration.

  2. Load the second SCSI driver using Windows NT setup.

  3. Before rebooting, open the Registry using REGEDT32 and edit the keys that apply to your SCSI controller. Make sure the Tag value for the SCSI boot controller has a lower value than the recently added controller. Swapping the two existing values avoids conflicts with other controllers.

  4. Shutdown and restart Windows NT.

REFERENCES

"Microsoft Windows NT Resource Kit," Volume 1, Page 427

Additional query words: prodnt blue trap
Keywords : kbsetup ntsetup ntstop
Version : 3.1
Platform : WINDOWS

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Last reviewed: May 14, 1997
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