WinNT 4.0 SP2 or SP3 Atapi Does Not Support Ultra DMA Devices (164378)
The information in this article applies to:
- Microsoft Windows NT Server 4.0 Terminal Server Edition
- Microsoft Windows NT Workstation 4.0
- Microsoft Windows NT Server 4.0
This article was previously published under Q164378 SYMPTOMS
ATAPI devices adhering to the Ultra-DMA specification are not recognized as
Ultra-DMA capable under Windows NT, and DMA support is not enabled.
CAUSE
The Microsoft Atapi.sys device driver needs to check new ultra DMA flags in
Identify data, and enable DMA support on ultra DMA devices is required.
RESOLUTIONTo 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, click the following article number to view the article in the
Microsoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack
-or-
To resolve this problem, install the updated Atapi.sys driver. For this
functionality to be available with the new Atapi.sys driver, the following
post SP3 fix is also required. For your convenience, the English version of
this post-SP3 hotfix has been posted to the following Internet location.
However, Microsoft recommends that you install Windows NT 4.0 Service Pack
4 to correct this problem.
STATUSMicrosoft has confirmed that this is 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.
| Modification Type: | Major | Last Reviewed: | 6/24/2004 |
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| Keywords: | kbbug kbfix KB164378 |
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