Not just difficult seriously, it's impossible.
Macbook pro mid 2010 ram frys how to#
Since this is not a user-serviceable part, there is no documentation available on where this data might be, nor how to update it to represent your new memory. This part is not appear to be present on the Macbook Air it's likely that the timing information is stored somewhere else in the system. Standard computer DIMMS contain a small EEPROM ( the SPD chip) containing data on the type of the memory present, and the timings necessary to communicate with it. This type of rework is extremely risky the PCB is not designed to be reheated multiple times to remove and replace parts, and the heat cycles involved may damage the board, especially if inappropriate technique is used.Īs if that weren't enough, it's not even clear the machine will recognize, or even be able to use, the new memory even if it is attached properly. Assuming that Apple uses the same PCB design for the 4GB and 8GB models - which may not be the case! - you would likely have to remove the existing memory chips and replace them with compatible higher-capacity parts. You'll notice as well that there are no available positions for additional chips. Inspection of BGA joints is typically performed by X-ray… which you probably don't have access to either. They cannot be attached using a soldering iron - they are typically attached using reflow soldering, which requires specialized hardware that you almost certainly do not have access to. This is because these parts are mounted to the motherboard using BGA technology - the solder joints are all on the underside of the chip. You'll notice first that there are no visible solder joints on these parts. The RAM chips are the four large components in the red box on the left side. Take a close look at the Macbook Air motherboard. Yes, it is although "massively more difficult" is almost an understatement. Or is it massively more difficult to solder new memory into a laptop than it is to solder some simple electronics project?
Given that you can sell your (presumably functioning) existing machine for a fair amount of money, it seems like it would be much more practical to buy a new machine than take a very high chance of destroying your current one, since then it will be worth next to nothing.
Your chances is less than 20% getting it to work and heating the board without the proper masks could cause the other components to shift killing your system for sure. They use a special fixture to hold the chips in place and heat both sides at the same time. You need very special gear only available at a fab house. In any case SMT chips as densely laid out as these are can't be desoldered and new ones desoldered by hand. Definitely not worth the risk unless you have direct access to a mother board assembly factory and someone does it for you over there.
Precision soldering is required, it is not to be done at home (too fine a work for home, unless you have done this same exact work before and done it well everytime).Įven after factory re-work, some boards/assembly simply fail (shorted etc). to replace/upgrade/or modify those chips, we send them to factory. One user did ask in their forums if it was possible.
This alone should tell you that it is something that should not be attempted by users who are not professionals. IFixit, who is a proponent of replacing everything in your system, does not provide a guide to replace the RAM (only the entire logic board, on which the RAM is soldered).
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