Hello, I have the following problem with the front usb ports. If I turn on the computer and plug an external 2.5" HD the disk light turns on, but the computer doesn't recognize it. If it's a flash drive what a plug the computer recognizes it. If I plug the external HD before turning on the computer it recognizes and both front ports are able to recognize it without any problem after removing it. The moba is a gigabyte z97. Could someone help me solve this problem?