last year my parents bought me an Alienware X51. i was going to build a pc but they bought me an alienware instead. (no complaints) The only problem is that the internals may not be able to run the newer 2016 games. i don't know exactly know what needs upgrading. but i have done some research and a lot of it said its hard because the case is so small. so i thought if i get a new case then i would be able to then upgrade the internals from there. from there what should i upgrade next?