I have two external hard drives that I've usually kept plugged into two back USB ports but all of a sudden, the USB ports stopped detecting them one day. If I move them to other USB ports, they work fine. In addition, any other USB drives I plug into those two USB ports work fine as well. The ports and the drives seem fine but when I put those two drives into those two specific ports, they don't work. What's going on here? If someone knows and can tell me, I would greatly appreciate it. Thanks in advance.
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