Microsoft KB Archive/812415

= Problems When Your Computer with Multiple ATA Drives Enters the S1 Power State =

Article ID: 812415

Article Last Modified on 12/1/2007

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APPLIES TO


 * Microsoft Windows XP Professional
 * Microsoft Windows XP Home Edition
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows XP Professional x64 Edition

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SYMPTOMS
If your Windows 2000-based or Windows XP-based computer with multiple ATA drives enters the S1 power state, you may experience one of the following symptoms:  Windows does not recognize the ATA drives when you resume your computer from sleep or standby. You may receive the following error message:

Unsafe Removal of Device:

You have unplugged or ejected a device without stopping it. Unplugging or ejecting devices without first stopping them can frequently cause your computer to crash and loose valuable data.

 Windows may stop responding (hang).



CAUSE
This problem occurs partly because the IDE storage driver stack incorrectly accesses registers that are required for a software reset. This leaves the host controller or device in a hung state. This problem does not affect computers that are using ATA Host controllers that are configured for Legacy mode operation. Although this issue has been identified on the Intel ICH5-based chip set, it is not limited to this hardware.



Service pack information
To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

322389 How to obtain the latest Windows XP service pack

Hotfix Information
The following files are available for download from the Microsoft Download Center:

Windows XPDownload the 812415 package now.

Windows XP 64-Bit EditionDownload the 812415 package now.

Release Date: May 9, 2003

For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to Obtain Microsoft Support Files from Online Services

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file. The English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version        Size    File name --  31-JAN-2003  15:43  5.1.2600.1164  87,040  Atapi.sys 31-JAN-2003 15:43  5.1.2600.1164  23,680  Pciidex.sys 14-NOV-2002 10:01  5.3.10.0        4,608  Spmsg.dll

Service Pack Information
To resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

Hotfix Information
The following files are available for download from the Microsoft Download Center:

All Languages except Japanese NECDownload the 812415 package now.

Japanese NECDownload the 812415 package now.

Release Date: May 9, 2003

For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to Obtain Microsoft Support Files from Online Services

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file. The English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version        Size    File name --  25-FEB-2003  10:30  5.0.2195.6672  86,704  Atapi.sys 25-FEB-2003 10:31  5.0.2195.6672  22,064  Pciidex.sys 12-FEB-2003 15:43  5.3.16.3        6,656  Spmsg.dll



MORE INFORMATION
Windows ATA and ATAPI drivers may experience these symptoms, and any driver controller chip set that runs in native IDE mode may also be affected.

Native mode ATA controllers are not common, and are generally used only on newer systems with multiple ATA controllers. For example, these might be used with a combination of Parallel ATA and Serial ATA (SATA) controllers.

To determine if your computer is running in ATA Native mode:
 * 1) Right-click My Computer, and then click Properties.
 * 2) Click the Hardware tab, and then click Device Manager.
 * 3) On the View menu, click Resources by Type.
 * 4) Expand Interrupt Request (IRQ).

If Device Manager shows that IRQ 14 is assigned to the primary IDE channel and it shows that IRQ 15 is assigned to the secondary IDE channel, your computer is in Compatibility mode.

If only one of these IRQs (14, 15) is assigned to an IDE channel and both channels are enabled in your computer BIOS, your computer is in Native mode.

Many computers that are equipped with Native mode ATA controllers also have a setting in the BIOS to enable or disable Native mode.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Microsoft Windows XP Service Pack 2. This problem was first corrected in Microsoft Windows 2000 Service Pack 4.

Keywords: atdownload kbhotfixserver kbqfe kbwinxpsp2fix kbdriver kbwin2ksp4fix kbwin2000presp4fix kbenv kbprb kbwinxppresp2fix kbfix kbbug KB812415

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