USB 3.0 controller card suddenly doesn't recognize my external hard drive.

I'm currently in the process of moving to a new place and I recently moved my computer. Everything seemed to be working fine until I connected my external hard drive to my USB 3.0 controller card. The port provides power to my external hard drive, and I can hear it starting up, but my computer can't discover it. And after a short time, the light on the front of my hard drive goes out, but if I touch it I can still feel it working. It works fine when connected to a USB 2.0 port, so I know that the hard drive itself and its power supply and USB cable are working. All the drivers for both my hard drive and my controller card are up to date. Did my controller card maybe get damaged somehow during the move? Is there any way to test it? Or is the problem maybe some software error instead of hardware?
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More about usb controller card suddenly recognize external hard drive
  1. The USB card may have become dislodged when the PC was moved. Remove it then firmly push it back in to the slot.
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