Enabling OHCI USB Support Causes High-Pitched Noise

When you enable Universal Serial Bus (USB) support, you may hear a high-pitched noise.

Note that this behavior occurs only in Windows 98 Second Edition, on computers equipped with USB Open Host Controller Interface (OHCI) host controllers.

If you use a USB video capture device, the image may freeze, and Windows may also stop responding to input.

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English-language version of this fix should have the following file attributes or later:

To work around this problem, disable USB support in Device Manager. Disabling USB causes the noise to stop.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

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: