Question - I have a Yoga 2 Pro with 4 gb ram. I understand that the ram is soldered onto the motherboard, so that upgrading the amount of ram is not possible. My questions is, is it possible to remove and replace the motherboard entirely? So if I could get my hands on an 8 gb ram motherboard (not sure if this can even be purchased separately), can I remove my current motherboard and replace with the new one?