#Macbook memory upgrade soldering archive#
Which downloaded SK Hynix entire archive for me in a few minutes. So i've asked a friend of mine to write a little scraper: for i in do wget -content-disposition - no-clobber "$i" sleep.
I suspect it might still be in their archive, just not on the website anymore. It is however incomplete: the document for LPDDR3 is missing. The SK Hynix site does have some documentation on some of their chips and how it is labeled.
#Macbook memory upgrade soldering code#
My chip has two different letters in it's code compared to the original Macbook RAM as shown by iFixit. Well i have a shipping notice on the RAM, but i still need to confirm everything might work. My questions now: is my reasoning correct in assuming the three chips i've mentioned will probably fit and work? Where can i obtain these chips? A testing document by Intel in which they've tested compatibility of various RAM chips for the specific CPU i'm using:Īnd with a bit of puzzling i've figured out (i think) what each of the 4 configuration settings does: Now what model of RAM should we buy? Apple provides one type in the schematic: The different options of RAM are controlled by a few GPIO lines on the CPU which are either pulled high or low with a few resistors. So this seems to be pretty straightforward. And apparently all models use 1866mhz DDR3, either by Hynix, Epida or SamsungĪnd you can configure the amount of RAM using some config-lines! So all different models of this macbook are done with the same logic board. I still have two 11-year-old Apple laptops in active service, and I’m little interested in machines that will be obsoleted in a couple of years.In the schematics we're off to a promising start The soldered-on, non-upgradable RAM was already the biggest inhibiting factor inclining me away from a MacBook Air for my next system upgrade and toward the 13″ MacBook Pro, and soldered-in storage would be the deal-breaker. He notes that Larry O’Connor, Founder & CEO, Other World Computing has also called the rumored move “disappointing,” but observes that change like this would be right in line with Apple’s evident ongoing trend to promote buy and replace cycles with non-expandable/serviceable (at the enduser level) products, getting users to buy computers that are only useful for a year or two. O’Grady acknowledges that the new Toggle DDR NAND Flash woujld be faster than the current crop of SSDs, but he’s not a fan of planned obsolescence and doesn’t like buying a computer that has a fixed amount of RAM or storage since it seriously limits upgrade options later on. On the SSD issue, Jason is referencing a report from the Japanese Apple-centric blogsite Macotakara that says according to an unnamed Asian electronics component company source, Apple appears to be fixing to adopt the 400-Mbps interface “Toggle DDR2.0,” a 19-nanometer process for NAND flash memory for new MacBook Air to replace the Blade X-gale, SATA 2.6 SSD used in the current MacBook Air models, packaged in a smaller chip and soldered on, which would eliminate end-user upgrades. O’Grady says there are two things that disturb him about the upcoming third-generation MacBook Air: it could ship still without a backlit keyboard, and it’s rumored that the Air’s SSD may be soldered onto the motherboard along with its processor and system RAM. Why Apple Soldering MacBook Air SSDs To The Motherboard Is A Really Bad Idea
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