USB 2 Ports Keep Reverting to USB 1
Posted on 2009-05-19
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?