Imac 21,5 mid 2010 RAM question

Chromez said:

Hello everyone!

I know there are existing articles on the internet about adding RAM to your Imac but i'm not feeling 100% sure yet to buy the specific RAM for my Imac so i thought i'd ask this in here with a specific question.

I have a 21,5 Imac from mid 2010 with 4GB RAM. So i checked the Memory specifications Apple website and i searched on the net for Memory to add so it matches with the right speed etc.

So my specific question is, can i add an extra 8GB Ram ( 4gb+4gb from whatever Brand) to my existing 4GB which is 2+2gb in each slot? So my slots look like this: 2gb 2gb (brand from apple) 4gb 4gb (other brand)

1. Is it possible to add another brand in there? Or do i have to take out the standard apple Ram out?
2. Do i need to match sizes of Ram so all 4 slots have the same size of Ram? Or is it important to have the same size in each 2 slots only?

If this is all correct, would it be possible to buy and add this exact memory in my 2 slots? http://www.mycom.nl/componenten/geheugen/7138/corsair-sodimm-ddr3-1333-8gb-2x4gb#specificaties And is the 1.5V correct and it's also saying Type module: Notebook? (sorry it's in Dutch, because i live in The Netherlands)

Sorry for my long post/question but i really want to sure i'm not creating any problems. Thanks in advance!!

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Chromez said:

Awesome! Thanks for your reply, now i can go and order

Now i don't want to be annoying with questions but i'd thought i'd rather ask another one here then to make another separate thread:

My brother bought himself a new Imac 27'' so it's a Late 2013 model and he has standard 8gb RAM, and this RAM has of course other specs, i did a search and i came up with this one: http://www.mycom.nl/componenten/geheugen/9618/corsair-sodimm-ddr3-1600-16gb-2x8gb#specificaties

Is this one compatible in his last 2 slots for his Late 2013 Imac 27'' i7 8 Gb ram ?

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