Stop error code 0x0000009F or Stop error code 0x000000FE on a Windows 7-based or Windows Vista-based computer that uses certain AMD USB EHCI host controllers

Consider the following scenario:

• You have a Windows 7-based computer that uses certain AMD USB South Bridge EHCI host controllers.
• You attach a USB device to the computer.
• The computer enters sleep (S3) or hibernation (S4) and then resumes from sleep or from hibernation. This process is repeated several times.

In this scenario, you receive one of the following stop error messages:Notes

• This issue occurs on the systems that have the following chipsets and USB EHCI controllers:

  Chipset	Device ID	Vendor ID
  SB600
  South Bridge	4385h	1002h
  USB EHCI Controller	4386h	1002h
  SB700/SB710/SB750
  South Bridge	4385h	1002h
  USB EHCI Controller	4396h	1002h
  SB810/850/SB820M
  South Bridge	4385h	1002h
  USB EHCI Controller	4396h	1002h

• This issue might also occur on computers that are running Windows Vista, Windows Server 2008, or Windows Server 2008 R2.

AMD has identified an issue with the host controller. This issue causes the host controller to become unresponsive in specific circumstances. For example, this issue may occur if the USB device uses the periodic schedule on the USB host controller.

To have us fix the problem for you, go to the "Fix it for me" section. If you prefer to fix this problem yourself, go to the "Let me fix it myself" section.

Fix it for me

To fix this problem automatically, click the Fix it button or link. Click Run in the File Download dialog box, and follow the steps in the Fix it wizard.




Notes

• This wizard may be in English only. However, the automatic fix also works for other language versions of Windows.
• If you are not on the computer that has the problem, save the Fix it solution to a flash drive or a CD and then run it on the computer that has the problem.

Next, go to the "Did this fix the problem?" section.

Let me fix it myself

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

To resolve this problem, follow these steps:

1. Click Start
   , type Devmgmt.msc in the Search programs and files box, and then press ENTER.
2. Expand Universal Serial Bus controllers.
3. Locate and then double-click USB2 Enhanced Host Controller.
4. Click the Advanced tab, and then click Device Instance Path in the Property list.
5. Note the value that is displayed. The value will resemble the following:
   PCI\VEN_xxxx&DEV_yyyy&SUBSYS_zzzzvvvv&REV_ww\qqqqqqqq
   Notes
   • The xxxx placeholder represents the PCI vendor ID
   • The yyyy placeholder represents the PCI device ID
   • The zzzz placeholder represents the PCI subsystem vendor ID
   • The vvvv placeholder represents the PCI subsystem device ID
   • The ww placeholder represents the PCI device revision number
   • The qqqqqqqq placeholder represents the Device Instance ID
6. Click Start
   , type Devmgmt.msc in the Search programs and files box, and then press ENTER.
7. Locate and then click the following registry subkey:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI\VEN_xxxx&DEV_yyyy&SUBSYS_zzzzvvvv&REV_ww\qqqqqqqq\Device Parameters
   
   Note In this step, you must locate the registry subkey by using the value that you noted in step 5.
8. On the Edit menu, point to New, and then click DWORD Value.
9. Type EnHcPeriodicIdle, and then press ENTER.
10. Right-click EnHcPeriodicIdle, and then click Modify.
11. In the Value data box, type 0, and then click OK.
12. Exit Registry Editor, and then restart the computer.

Did this fix the problem?

• Check whether the problem is fixed. If the problem is fixed, you are finished with this section. If the problem is not fixed, you can contact support.
• We would appreciate your feedback. To provide feedback or to report any issues with this solution, please leave a comment on the "Fix it for me" blog or send us an e-mail.

Note Typically, a USB 2.0 Enhanced (EHCI) host controller will disable the periodic schedule if there are no periodic transfers scheduled, which helps to reduce power consumption by the host controller. By applying the fix that is described in the "Resolution" section, you will prevent the USB periodic schedule from being disabled when it is idle. In some situations, such as when a device that does not support USB Selective Suspend is attached to a USB host controller with this configuration, this might increase the power consumption of the system by approximately 5 percent. In order to prevent this, do not attach devices that do not support USB Selective Suspend (for example, certain USB storage devices) to a USB host controller that has this setting applied.

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.