Windows NT 4.0 Winbond Super I/O Floppy Disk Controller May Not Report Data Underrun or Overrun Condition Correctly (Q300987)
The information in this article applies to:
Microsoft Windows NT Workstation versions
Microsoft Windows NT Server versions
Under a heavy system load, access to a floppy disk drive may result in the following error message:
This error message has occurred during testing of a third-party system using a Winbond Super I/O floppy disk controller. This issue has not been reported during use, only during testing.
This issue occurs because the Winbond Super I/O controller does not report the data underrun or overrun condition correctly.
A supported fix is now available from Microsoft, but it is only intended to correct
the problem described in this article and should be applied only to systems
experiencing this specific problem.
To resolve this problem immediately, download the fix as instructed below or contact
Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft
Product Support Services phone numbers and information on support costs, please go to
the following address on the World Wide Web:
: In special cases, charges that are normally incurred for support calls may be
canceled, if a Microsoft Support Professional determines that a specific update will
resolve your problem. Normal support costs will apply to additional support questions
and issues that do not qualify for the specific update in question.
The following file is available for download from the Microsoft Download Center:
Download Q300987i.exe now
Release Date: September 21, 2001
For additional information about how to download Microsoft Support files, click the article number below
to view the article in the Microsoft Knowledge Base:
How to Obtain Microsoft Support Files from Online Services
Microsoft used the most current virus detection software available
on the date of posting to scan this file for viruses. Once posted,
the file is housed on secure servers that prevent any unauthorized
changes to the file.
The English version of this update should have the following file attributes or later:
Date Time Size File name Platform
12-Jun-2001 16:40 18,928 Floppy.sys Intel
12-Jun-2001 16:36 30,960 Floppy.sys Alpha
: Because of file dependencies, this update requires Microsoft Windows NT 4.0 Service Pack 6a.
Microsoft has confirmed this problem only under certain conditions during third-party testing, not during use.
Jul 27 2001 3:32AM
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Sep 21 2001 11:35AM
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