Make sure they are the same make and model Elpida, Hynix, Micron or Samsung of the original ones if possible. just 8 instead of 16 you would need to get JUST ONE normal 8gb so-dimm memory stick (or buy a pair totaling 16gb and give one to a friend) and use it's chips. i plan to get one pair to max out my mac mini 2010 (using the same 320m).īut with the Macbook Air essentially having space to use only half the amount of chips.
What is the latest os for macbook air 2011 full#
In a normal situation, i know for a fact 320m will support two full 8GB of ram, and i've even seen 16GB. First, you are limited my the number of chips so you can only increase density. Now the problem with the 4GB version and upgrading to more is more stringent. or overwritten with new data with something like Thaiphoon Burner. there is another smaller chip called the SPD which stores information about the memory, speed, latency and so on. 2GB version is most certainly upgradeable to 4GB if you unsolder all the chips and solder in double density ones. It would appear that Apple has chosen to use "single sided" sticks with just enough room to put 8 chips instead of 16.įor those willing to unsolder. The problem it seems is that most memory sticks have 8 chips per stick with a total of 16 is you count in most laptops have two slots to put the memory in. That means that for the 4G ram version for example they use 512mb per chip, for the 2GB version that would mean 256mb per chip. So four of them are 2gb on one side are one channel and four of them are 2gb on the second channel. They are double data ram so they use both channels. In the last photos i can see 8 ELPIDA chips in a row. MacBook Air 13" Late 2010 Logic Board Replacement Take a look here at the teardown for the late 2010 macbook air, the one with 320m graphics chip.