The problem is the following... My PCs front USB 3.0 ports (which are connected to the usb3.0 internal headers) do not work with my USB3.0 External HDD...
If I plug it in via a USB 2.0 cable it works but if I use the USB3.0 cable it does not... The USB3.0 cable DOES work with the rear usb ports, just not the front ones...
I have a Thermaltake Urban S21 case and a Gigabyte GA-Z87-HD3 motherboard, and windows 8 enterprise x64
EDIT: The light on the HDD does turn on and you can feel it spinning inside but it doesn't show up anywhere, nor my Computer nor Device manager