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Adding RAM to late-2009 iMac

R

Roger Thornhill

macrumors newbie
Original poster
Mar 30, 2016
9
0
New topic, because the other one seemed pretty focused on different things, hope that's okay.

Hey, so my knowledge when it comes to these things is very limited.

I have a 21,5 inch late 2009 iMac. (entry level hardware).

That means 4 GB of RAM. The iMac has 4 slots, available via the bottom of the screen.

I was thinking about upgrading this and adding another 2x2GB of RAM.

Now I don't really know alot about this sort of thing.

When I buy the RAM, I need to make sure that everything listed here (under late 2009 iMac) is right.

It has to be 1066 MHz DDR3 SDRAM and it has to PC3-8500 and it has to be 204-pin. Is that true?

So this (german amazon link, sorry) would not work.

But this should work, right? (are there any cheaper options than this, btw? Or should I go more expensive?)

Thank you guys in advance!
 
Last edited:
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Interesting that the link you posted is for Crucial RAM.

Go to Crucial's website and run their compatibility check on your machine. It will tell you exactly what RAM will work. It's easy.
 
Tomorrow said:
Interesting that the link you posted is for Crucial RAM.

Go to Crucial's website and run their compatibility check on your machine. It will tell you exactly what RAM will work. It's easy.
Click to expand...

First thing, besides the Kingston, that showed up for me on Amazon!

Thanks a lot for the tip, I will check that out!

IowaLynn said:
Helpful Mac guides on memory upgrades
http://www.macsales.com/memory
http://www.everymac.com

Also more reliable on upgrade option than Crucial or trying to guess based on specs alone
Click to expand...

Will check this out too! Once again, thank you!
 
Thanks for your reply

How come it is so expensive?
A 4GB ram module costs almost half of what I paid for the re-furb iMac :(
 
I don't imagine that it's still profitable to manufacture ddr2 memory, so the supply is limited, which keeps the price up.
 
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