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Q195898: Incorrect Drive Size with Promise Technologies Ultra DMA Card

Article: Q195898
Product(s): Microsoft Windows NT
Version(s): winnt:4.0
Operating System(s): 
Keyword(s): kbWinNT400sp4fix
Last Modified: 10-AUG-2001

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The information in this article applies to:

- Microsoft Windows NT Server version 4.0 
- Microsoft Windows NT Workstation version 4.0 
- Microsoft Windows NT Server version 4.0, Terminal Server Edition 
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SYMPTOMS
========

After you apply the updated Atapi.sys driver on a computer with a hard disk
drive larger than 8 gigabytes (GB) that is connected to a Promise Technologies
Ultra 33 PCI bus-mastering controller, the drive may still be reported as only 8
GB by Disk Administrator.

CAUSE
=====

On computers configured to use a Promise Technologies Ultra 33 PCI bus-
mastering controller, the following conditions must be true:

- Version 1.3.5 or later of the Promise Technologies driver must be used.

- The updated Atapi.sys hotfix must be installed.

- The IDE channel must be disabled in the computer's BIOS so that the LBA EIDE
  feature in the BIOS on the Promise card can control access to the drive.

RESOLUTION
==========

To see a hard disk drive that is larger than 8 GB and is connected to a Promise
Technologies Ultra DMA PCI controller, the following conditions must be true:

- The IDE channel to which the drive would otherwise be attached on the
  motherboard must be disabled in the computer's BIOS.

- Use the latest driver for the Promise Technologies Ultra DMA bus- mastering
  card. For the entire drive to be accessible under Windows NT 4.0, version
  1.3.5 or later of this driver must be installed.

- The updated Atapi.sys driver must be installed as per the following article
  in the Microsoft Knowledge Base:

  Q197667 Installing Windows NT Server on a Large IDE Hard Disk

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or
Windows NT Server 4.0, Terminal Server Edition. For additional information,
please see the following article in the Microsoft Knowledge Base:

  Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack


STATUS
======

Microsoft has confirmed this to be a problem in Windows NT 4.0 and Windows NT
Server 4.0, Terminal Server Edition. This problem was first corrected in Windows
NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition
Service Pack 4.

MORE INFORMATION
================

The updated Atapi.sys file is included in Windows NT 4.0 Service Pack 4.

Additional query words:

======================================================================
Keywords          : kbWinNT400sp4fix 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbNTTermServ400 kbNTTermServSearch
Version           : winnt:4.0
Issue type        : kbprb

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