WinNT 4.0 SP2 or SP3 Atapi Does Not Support Ultra DMA Devices

ID: Q164378

The information in this article applies to:

Microsoft Windows NT Workstation version 4.0
Microsoft Windows NT Server version 4.0
Microsoft Windows NT Server version 4.0, Terminal Server Edition

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.

RESOLUTION

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

-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.

ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/usa/nt40/hotfixes-postSP3/ide-fix/

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.

Keywords : NT4SP4Fix kbbug4.00 ntdriver kbfix4.00.sp4
Version : WinNT:4.0
Platform : winnt
Issue type : kbbug