Turning off the power management did NOT fix the problem! Problem remains Unanswered.
I have an HP Laptop 8540p. The USB 3.0 Port never worked with a Sans Digital RAID. HP tech support Tried and Failed to find a solution. When I plug the same cable from the Sans Digital TR5UT +B into the USB 2.0 port it works great. Other USB 3.0 devices work in the USB port. The failure is in the Renasas USB 3.0 driver. Windows 7 finds the device and tries to load the driver but I get an error "Device driver software was not successfully installed". I've tried ever tick I know but there is a bug in the driver software.