I have a 27-inch iMac late 2009 desktop computer and i'm looking to upgrade my ram. The best RAM I can find is a Kingston 2GB, DDR3-1066, PC3-8500, CL7, DIMM.

What I currently have is 4GB 1067 MHz Ram

Will this be suitable? Or is this the wrong one?

2 Answers 2


You can find out the memory summary by going to:

 > About This Mac > More Info > Memory

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Screenshot example

You can also go to Technical Specifications, click "Browse by Product", and enter the serial number of your Mac to see the specs.

It's always a good idea to read the return policy from the vendors, in case the RAM that you bought was not compatible with your computer.


it should work. i would just make sure you can return it just in case. when you put the new ram in the mac will beep if the ram is not acceptable.

  • My Mac doesn't beep if the RAM is wrong, it sets a different pattern of lights on the mobo.
    – Tetsujin
    Commented Jan 15, 2015 at 20:41

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