Computer with IDE DMA Hard Disk Hangs When Resumed

This article was previously published under Q193473
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When a Windows 98-based computer is placed into Standby mode and thenresumed, the computer may stop responding (hang) if it contains anIntegrated Drive Electronics (IDE) hard disk that is accessed usingDirect Memory Access ([DMA], which is also known as Bus Mastering).
When it resumes, Windows 98 issues an incorrect wakeup command sequenceto an IDE hard disk that uses DMA.

This problem has been reported to occur with the following portablecomputers running Windows 98:

  • IBM ThinkPad 770E
  • IBM ThinkPad 770ED
  • IBM ThinkPad 600
  • IBM ThinkPad 560D
  • IBM ThinkPad 380Z

A supported fix that corrects this problem is now available fromMicrosoft, but has not been fully regression tested and should be appliedonly to computers experiencing this specific problem. To resolve thisproblem immediately, contact Microsoft Technical Support to obtain thefix. If you are not severely impacted by this specific problem, Microsoftrecommends that you wait for the next service pack that contains this fix.

For a complete list of Microsoft Technical Support phone numbers andinformation on support costs, please go to the following address on theWorld Wide Web:

This fix should have the following file attributes (or later):

   File name     Version    Date      Time     Size   ---------------------------------------------------------   Esdi_506.pdr  4.10.2001  9/28/98   8:01pm   24,430 bytes   Ios.vxd       4.10.2001  9/28/98   8:01pm   69,478 bytes				
Microsoft has confirmed this to be a problem in Microsoft Windows 98.

This problem was corrected in Windows 98 Second Edition.
For additional information about Windows 98 and Windows 98 Second Edition hotfixes, click the article number below to view the article in the Microsoft Knowledge Base:
206071 General Information About Windows 98 and Windows 98 Second Edition Hotfixes

Article ID: 193473 - Last Review: 01/09/2015 14:02:28 - Revision: 1.4

Microsoft Windows 98 Standard Edition

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