I'd like to upgrade the motherboard (and CPU) in an aurora R5. Has anyone out there done so and can offer any suggestions or things to watch for. For example 1. do I have to order a Dell motherboard (I can get a Z370 for an R7) or does any mini ATX mid-tower board fit / bolt up (I've already run into the problem where I had to replace a SATA cable and not only did it have to be an L-connecter, it specifically and to be a low profile L-connector to fit) 2. would I have to upgrade the 460W power supply as well? 3. If installing a liquid cooler are there certain types that fit or don't fit?