MacBook Pro 15" Retina Display Mid 2012 Teardown
The chip number on the RAM is K4T2G314QF-MCF7 (Q, not 0, as noted in Step 10)
These part numbers also noted in my news post here (linking back to you guys):
My performance review of the Samsung 830 Series, for those interested:
I'm thrilled to see such a great controller in the new MacBooks!
Storage Editor, PC Perspective