Article ID: 254901 - Last Review: January 27, 2007 - Revision: 1.2

"USB Power Exceeded" Error Message When Connecting USB Devices

This article was previously published under Q254901
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SYMPTOMS

When you attach a Universal Serial Bus (USB) device, you may receive a "USB Hub Power Exceeded" error message containing the following text:
The hub does not have enough power available to operate the device driver name. Would you like assistance in solving this problem? If you click No, the device may not function properly.
In addition, the USB device mentioned in the error message does not work properly and the device listing (in the system properties of the Device Manager properties window for the device) appears with the following error message: A USB device has requested more power than the hub can provide. Windows cannot enable the device. Remove the device and restart your computer.

CAUSE

This behavior occurs if there are too many USB devices attached to a passive (unpowered) USB hub.

RESOLUTION

To resolve this issue, replace the passive USB hub with an active (powered) hub.

WORKAROUND

To work around this issue, disconnect the affected device from the passive hub and connect it directly to the USB host controller's hub (in the back of the computer).

APPLIES TO
  • Microsoft Windows Millennium Edition
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Retired KB ArticleRetired KB Content Disclaimer
This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.
 

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