Ram Upgrade

[scratchmix]

hi

i have a 13inch 2.4Ghz Intel Core i5 .think its late 2011 model.
ram is 4GB 1333MHz DDR3......

i have extra Samsung ram i hooked from my Toshiba ...but i dont know it is suits for m macbook pro....the ram it self has a sticker shows 4GB 2Rx8 PC3-8500S-07-10-F2.......my "problems are

1.is this ok to use with
2.is it ok to have 6GB ram instead of 8GB
3.is it ok to use two different ram types - ex- one is samsung other is kinsgton..?

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i think as i remember that ram is - 4GB PC3-8500 DDR3-1066 204-pin SDRAM SODIMM.

 

[Dustman]

not sure if its compatible or not, but yes you can mix brands and even speeds, the computer will just underclock the faster module to match the slower one. and yes you can have 6GB.

 

[scratchmix]

i think this is it

http://www.amazon.com/Samsung-PC3-8500-DDR3-1066MHz-Unbuffered-M471B5273BH1-CF8/dp/B002XE1RHQ

 

[JTToft]

It will work. You just need to know that your existing 1333 MHz 2 GB stick will be downclocked to match the 1066 MHz 4 GB stick from your Toshiba computer.

 

[scratchmix]

is there a way to do that or is it automatically down-clocking and how to check that?

 

[JTToft]

is there a way to do that or is it automatically down-clocking and how to check that?

It is done automatically. You don't need to check it, but you can always see the speed at which your RAM is operating in "About this Mac" in the Apple menu.