Chosen Solution

1/9/2021 RE: Mac Book Pro - Late 2011, Mod #A1286, MD322LL/A, uses logic board 661-6162, 2.5GHz, May also use # 820-2915A and/or 820-2915B. The original part # (MLB) is C021394010FDV3WA0. The EEE# is DV3W. Can I use a logic board that’s identical but has a EEE# of DV7 ? I can’t find anything to show interchangability for logic boards anywhere. If the second board is for the same late year 2011, and screen size (15”), Not Retina, will it function if I use it to replace the original board? I believe that with the second board, it was for a model MD318LL/A and not the MD322LL/A. All I can find is that even though they were both for the same late 2011 year and screen size, the 318 used a 500GB H/D and the 322 uses a 750GB H/D. Would that make a difference. ? I’m lost at this point. It sure would be nice if Apple made this information available to us. Any possible information will be greatly appreciated.. Thank you Keats1

Hard drive size means nothing - I’d replace the hard drive with an SSD to double the speed. The MD322LL/A is a: Apple MacBook Pro 15-Inch “Core i7” 2.4 Late 2011 Specs Identifiers: Late 2011 15" - MD322LL/A - MacBookPro8,2 - A1286 -  2563* the MD318LL/A  is a Apple MacBook Pro 15-Inch “Core i7” 2.2 Late 2011 Specs Identifiers: Late 2011 15" - MD318LL/A - MacBookPro8,2 - A1286 -  2563* Yes the boards are interchangeable.