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Power Surge On Usb Port After Installing Xp Sp2


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#1 developers programme

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Posted 27 August 2008 - 09:49 PM

Hi
After installing the much awaited Service Pack 2 of Windows XP, I'm getting the error "A USB device has exceeded the power limits of it's hub port. For
assistance in solving this problem, click this message".
The device is shown in bold saying "Unknown device".
At that time only Keyboard and Mouse were connected to the USB ports.
These were working smoothly b4 installing SP2.
Not only that, the error dialog box lists out 6 USB ports. But in my PC there are only 4 USB ports. Why this?
Is this problem of Windows XP SP2? or
Is there any electric shortage inside my PC?
Anyone with answer pls help me in this...
Thanks in Advance...

I also post it at developermark :thumbsup:

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#2 Guest_Abacus 7_*

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Posted 27 August 2008 - 11:25 PM

Are you sure it is SP2? Not SP3 the latest one.

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#3 Charybdis

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Posted 27 August 2008 - 11:48 PM

also do you have a card reader, as they are usually connected to usb internally and can fail and give that error, or ones with printers etc, did the mouse and keyboard keep worknig ???

#4 hamluis

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Posted 28 August 2008 - 08:50 AM

The simplest (IMO) way to try to sort it out...remove the USB controller drivers in Device Manager, reboot, drivers should reinstall properly with USB functionality.

As for ports...I believe that multiple card readers sometimes show as individual devices, rather than one, in Device Manager and/or My Computer.

Louis




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