Quick (related) question: I am getting an XPS 8930 with 16GB of 2666 RAM (2 x 8GB I believe). It looks like I can add another 32GB of Crucial or Kingston HyperX Fury Black 2666 RA (2 x16 GB) for around $140. Will 48GB of RAM work? (I usually see RAM specs go from 32GB to 64GB without specifying 48GB.) If so, does anyone know how I would configure the 4 DIMMs (2 x 8GB + 2 x 16GB) so it worked most effectively (meaning what memory sticks go in which DIMM slots)?