Hi, I have a problem with my MBP 13" early 2011 with i5 2,3 Ghz (one of the thermal sensors on the logic board is broken). I want to buy a defect MBP which still has a usable logic board, so swap parts and have a fully operational MBP again. My question is: If I buy a MBP 13" early 2011 with i7 2,7 Ghz, can I use it's logic board and processor in my old computer (the i7 MBP has other defects, but not the logic board)? What about the late 2011 MBPs? Are their logicboards compatible to my machine? Thanks in advance.