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Q300987: Windows NT 4.0 Winbond Super I/O Floppy Disk Controller Problems

Article: Q300987
Product(s): Microsoft Windows NT
Version(s): 4.0,4.0 SP1,4.0 SP2,4.0 SP3,4.0 SP4,4.0 SP5,4.0 SP6a
Operating System(s): 
Keyword(s): kbWinNT400PreSP7Fix
Last Modified: 08-MAY-2002

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The information in this article applies to:

- Microsoft Windows NT Workstation versions 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4, 4.0 SP5, 4.0 SP6a 
- Microsoft Windows NT Server versions 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4, 4.0 SP5, 4.0 SP6a 
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SYMPTOMS
========

Under a heavy system load, access to a floppy disk drive may result in the
following error message:

  System Process - No Disk
  There is no disk in the drive. Please insert a disk into drive A.

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.


CAUSE
=====

This issue occurs because the Winbond Super I/O controller does not report the
data underrun or overrun condition correctly.

RESOLUTION
==========

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:

  http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: 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:

  DownloadDownload Q300987i.exe now
  (http://www.microsoft.com/Downloads/Release.asp?ReleaseID=32688)

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:

  Q119591 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. After it is 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  

NOTE: Because of file dependencies, this update requires Microsoft Windows NT 4.0
Service Pack 6a.



STATUS
======

Microsoft has confirmed this problem only under certain conditions during
third-party testing, not during use.

Additional query words:

======================================================================
Keywords          : kbWinNT400PreSP7Fix 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTW400sp5 kbWinNTW400sp4 kbWinNTW400sp3 kbWinNTW400sp2 kbWinNTW400sp1 kbWinNTSsearch kbWinNTS400sp6 kbWinNTS400sp5 kbWinNTS400sp4 kbWinNTS400sp3 kbWinNTS400sp2 kbWinNTS400sp1 kbWinNTS400search kbWinNTS400 kbWinNTW400SP6a
Version           : :4.0,4.0 SP1,4.0 SP2,4.0 SP3,4.0 SP4,4.0 SP5,4.0 SP6a
Hardware          : ALPHA x86
Issue type        : kbbug
Solution Type     : kbfix

=============================================================================

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