Add memory to my 2011 iMac 21.5 "Quad Core i5 2.7GHz

Hello

Can I add 8 GB memory cards in the 4 slots in my iMac 21.5 "Quad Core i5 2.7GHz? At the moment I have 2 x 2 and 2 x 4 GB cards and my mac is evil and taking a age to perform simple tasks. I thought he could have my HD was complete but there is two-thirds still available so it must be a problem with memory - unless someone has other suggestions of what it could be? I was planning on replacing the four locations maps 8 GB but want to verify they are compatible before shelling out.

Thank you

If it is a Mid-2011 model:

Maximum memory (Real) 32 GB 16 GB (Apple)
Memory locations 4-204-pin PC3-10600 (1333 MHz) DDR3 SO-DIMM

If it is a late-2011 model:

Maximum memory (Real) 16 GB 8 GB (Apple)
Memory locations 4-204-pin PC3-10600 (1333 MHz) DDR3 SO-DIMM

Actual spending refers to the maximum tested by OWC.

Tags: Mac

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