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USB 2 Ports Keep Reverting to USB 1

Posted on 2009-05-19
Medium Priority
Last Modified: 2012-05-07

I have a HP Compaq DC5700 Small Form Factor (Vista Ult, 4Gb RAM).

There are numerous USB ports at the back and 3 at the front.

Recently every time I plug in a USB 2 device it tells me the device can perform faster if I plug it into a 2 port.

All the ports should be USB 2 I have checked.

I have tried the following:

Installing the latest drivers from website

Uninstalling the USB devices from device manager (this fixes the problem when i reboot after the uninstall and if i leave the device plugged in it is seen as a 2, but as soon as i reboot again the problem comes back)

Does anyone have any ideas, have they seen this problem before?


Question by:explorersup
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LVL 93

Expert Comment

ID: 24419968
seems an update is fixing you up...
try repairing Vista :      

Author Comment

ID: 24420002
Surely a repair isn't required.

If its a driver problem shouldn't a driver roll back or the latest drivers fix the issue?
LVL 93

Expert Comment

ID: 24420067
you can try it first, but you said after a reboot it came back, so that does not seem the solution to me..
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Author Comment

ID: 24439366

This didn't help.

Computer does not have boot issues therefore cannot repair the PC that way and all the other options available in repair do not relate to the USB issue I am seeing.

Issue remains unsolved.



Expert Comment

ID: 24439452
I've had this before on 2 different laptops (both my personal laptops) - the first, an IBM x40 w/- WINXP - i spent more time trying to solve than it took to rebuild (which was 3 days)....rebuild fixed it. The second time on a Lenovo X61 with VISTA and again rebuild fixed it.

I also had all usb ports fail completely on  the X40 about 12 months prior to the above incident, there was power getting to them but windows could not see them- new mothoerboard fixed that one.

Accepted Solution

explorersup earned 0 total points
ID: 24471611
Have tried a few different things and there has been no success.

The device flicks between 1 & 2, but other devices seem to be quite reliable and remain in USB 2.

Going to put this one down to the device and just accept its not going to be resolved.

Cheers for the help.

LVL 93

Expert Comment

ID: 24471865
well a fresh install should remedy your problem

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