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As mentioned in my original post, all the connectors and cables also lined up perfectly and every plug or connector fit into the replacement logic board just like they did into the OEM logic board. All 7 holes on the board lined up perfectly with the mounting points on the computer chassis. The replacement logic board’s fit was identical to the OEM logic board’s fit.

Once upon a time many years ago a 400MHz speed increase would have been significant, but today (or even 2012) it isn't that significant a change as you are unlikely to notice the difference during normal use for most workloads. 0.4 GHz) in processor speed worth the cost (part price of $150 to $250 and about an hour of my time) to perform the upgrade we have been discussing? Plus the Logic Board may have a system serial number sticker (usually on the base of the memory slot) containing the original system serial number and possibly a part serial number which contains a code which identifies similar system specifications (I don't recall where this part serial number is located since it can vary between boards - may be a sticker, barcode, or QR code).įinal question: In your opinion and given your knowledge of what logic boards are compatible, is the maximum jump (e.g. I've never looked at how specific this number is, but I think it goes by specific models like (early-2011, late-2011, mid-2012, etc.). MLBs have an 820-xxxx number embossed on them which identifies them.

Everything else is just guesswork and trial and error.Īnother equally important question is: Other than the date assigned to the logic board by a seller, is there a definite way (i.e., part number, bar code, etc.) to identify what I am shopping for and distinguish among the available logic boards to hopefully find the right one to enable an upgrade? The only guaranteed compatible MLB would be one for a 2010 MBPro. 2.9 GHz) that is compatible with my A1278 2010 MBPro? It is best to test a minimal configuration with everything disconnected except for the bare essentials as I mentioned in the previous reply.Īlso, since I am (I think) still planning an upgrade, what is the latest generation / fastest processor (i5 vs, i7 / 2.3 vs. If you don't get any LED on the Magsafe connector, then either the DC-In Board, or the Logic Board, or the battery is most likely bad. 2012) that could cause any / all the above-noted issues? versus i7 2.) and assuming that I connected all the cables properly (which I think I did) shouldn't I at least seen a charge indicator light (green / orange) on the tip of the MagSafe power cord, or have heard the fan humming or have seen the backlight on the keyboard illuminate? So my follow-up question is: Are you aware of any other component incompatibilities (2010 vs. If the 2 boards' sizes and layouts are exact matches (i5 / 2.