firstly... RAM!?!? why would a noise be coming from a static object with no moving parts??
its either going to be a case fan, PSU fan or CPU fan.
it could be your Artic 7, if its an original version its going to be old, and its also not the most competent of cooling device for an i7 processor, so might be struggling.
lastly... why on earth would you play games in 3D?
bigger gimmick than tablet computers