Service Packs on Compaq MPS Computers May Cause Systems to Stop Responding

ID: Q162250

The information in this article applies to:

Microsoft Windows NT Workstation version 4.0
Microsoft Windows NT Server version 4.0

SYMPTOMS

After you install a Windows NT 4.0 Service Pack on a Dual Processor Compaq System with a Compaq SSD installed, the computer may stop responding at the Windows NT logon screen, without displaying any error messages.

CAUSE

The Compaq SSD was used to upgrade the system to a multiprocessor system. The SSD correctly installs the files required for multiprocessing support, but incorrectly modifies the line in the Setup.log file that refers to the Hal.dll file. The Hal.dll line references the single processor version of the Hal.dll file, while the NTOSKRNL line references the multiprocessor version of the kernel. As a result, the Windows NT service pack installs the multiprocessor kernel file, and the single processor version of the Hal.dll file. When the system restarts after the service pack installation, the Windows NT kernel load screen reports 1 system processor; Multiprocessor Kernel. Windows NT continues loading, but will stop responding at the logon screen without any errors.

RESOLUTION

Prior to installing the service pack:

Manually edit the Setup.log file located in %SystemRoot%\Repair to reflect the following changes:

On a Compaq Proliant 4500 or other System Pro Compatible System:


   Original Line
   \winnt\system32\hal.dll = "\HAL.DLL","f337"

Modify this line to the following:


   \winnt\system32\hal.dll = "halsp.dll"."f337"

On a Compaq Proliant 1500, 5000 or other MPS Compatible System:


   Original Line
   \winnt\system32\hal.dll = "\HAL.DLL","1a01c"

Modify this line to the following:


   \winnt\system32\hal.dll = "halmps.dll"."1a01c"

After installing the service pack, perform the following steps:

If Windows NT is installed on a FAT Partition

Start the computer with a DOS disk.

On a Proliant 4500 or other System Pro Compatible computer, manually copy the Halsp.dll file from Service Pack 2 to %SystemRoot%\System32\Hal.dll.

On a Proliant 1500, 5000, or other MPS Compatible computer, manually copy the Halmps.dll file from Service Pack 2 to %SystemRoot%\System32\Hal.dll.

The computer should start normally now.

To prevent the problem from happening in the future, follow the earlier steps to modify the Setup.log in the repair directory. You must also change the file checksum from f337 to 1b36e, or from 1a01c to 125d8.

If Windows NT is installed on an NTFS partition

Perform a second installation of Windows NT in a different directory.

After the installation is complete, start the second installation and:

On a Proliant 4500 or other System Pro compatible computer, manually copy the Halsp.dll file from Service Pack 2 to the original %SystemRoot%\System32\Hal.dll directory.

On a Proliant 1500, 5000, or other MPS compatible computer, manually copy the Halmps.dll file from Service Pack 2 to the original %SystemRoot%\System32\Hal.dll directory.

Restart the original installation of Windows NT.

Delete the second installation of Windows NT.

To prevent the problem from happening in the future, follow the earlier steps to edit the Setup.log file in the repair directory. You must also change the file checksum from f337 to 1b36e, or from 1a01c to 125d8.

As an alternative to a second installation, you can modify the contents of the emergency repair disk (ERD) by performing the following steps:

Remove the attributes from the Setup.log file by typing the following at the command-line prompt:

attrib -r -h -s a:\SETUP.LOG

In the Setup.log file, add the following line to the files.WinNt section:

On a Proliant 4500 or other System Pro compatible computer:
```
      \Winnt\System32\hal.dll = "halsp.dll","f337","\",
      (continued line)  "nt351 repair disk","halsp.dll" 
```
On a Proliant 1500, 5000, or other MPS compatible computer:
```
      \Winnt\System32\hal.dll = "halmps.dll","1a01c","\",
      (continued line)  "nt351 repair disk","halmps.dll" 
```
NOTE: \Winnt represents the directory where Windows NT is installed.

Copy the Halmps.dll or Halsp.dll file from the Windows NT 4.0 service pack source media to the root directory of the ERD.

Restart your computer with the three Windows NT 3.51 Setup disks.

Select R to Repair your Windows NT.

Select only "Verify Windows NT System Files" and continue.

If prompted to insert Windows NT setup disk #4, press ESC to continue with the Repair process.

After you replace the Hal.dll file with the file from the Windows NT 4.0 service pack, press F3 to exit Repair. Restart the computer, and then restart Windows NT.

To prevent the problem from happening in the future, follow the earlier steps to edit the Setup.log file in the repair directory. Also, you must change the file checksum from "f337" to "1b36e" for Halsp.dll, or from "1a01c" to "125d8" for Halmps.dll.

MORE INFORMATION

The third-party products discussed here are manufactured by Compaq, a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words: compaq hang complete frozen freeze


Keywords          : kb3rdparty kbhw nthw NTSrvWkst 
Version           : WinNT:4.0
Platform          : winnt 
Issue type        :

Last Reviewed: February 3, 1999