Will 1600 Mhz RAM work on Macbook late 2009?

[kunal5988]

Hi,
I have macbook late 2009 which has 2 GB (1x2) 1066 Mhz DDR3 RAM. I want to upgrade it to 4GB. So i was thinking of transferring 4 GB RAM from my macbook pro mid 2012 which has 4 GB (2x2) 1600 Mhz DDR3 RAM. And will upgrade macbook pro with 8 GB RAM.

So, will my macbook 2009 support 1600 Mhz RAM ??

 

[brdeveloper]

Good question, would like to know since it's becoming increasingly hard to find the proper DDR3-1066 modules these days.

 

[BrianBaughn]

I don't think the processor supports RAM at that "speed".

Macsales.com ought to have the proper RAM in stock.

 

[dylin]

i can confirm that it will not.

my experience was from trying to take the RAM from my 2012 macbook pro, and trying to put it in my friends late 09 white unibody macbook.

it was 2 sticks of 2GB 1600mhz RAM. and the system would not boot.

thats from my end. hopefully there will be more insight soon.

 

[Twimfy]

Nope. Will only take 1066.

Some models can get away with 1333 but it'll only clock at 1066 so it's a waste of time, but some people do it anyway in the belief that they're getting something extra when they're not.

DDR3 1066 Modules even in 4GB config aren't that difficult to find, but the prices are rising, much like DDR2 has done. The 8GB modules are becoming increasingly scare and if you have a 2010 MacBook I highly recommend grabbing them while you can, they're an investment in themselves.