07-29-2011, 03:53 PM

Hi guys,

Yesterday I purchased a new iMac 21' with 2 TB HD and 8 GB of RAM- so I thought. Because of a screw up at the store, it came with 2x 2GB 1333 MHz DDR3 RAM. The store apologised and gave me 2x 4GB RAM to install.

Question 1: Will having mismatched RAM (2x 4GB & 2x 2GB) running together be counter productive or damaging to the computer?

Question 2: Is it worth selling the practically brand new 2x 2GB 1333 MHz DDR3 RAM or swapping to one 4GB?

Thanks for your patience!

Iscar.

07-29-2011, 04:26 PM

I'm no mac expert, (I'm sure they will be along soon to advise you), but my 2010 iMac came with 4gig installed (2 x 2gig sticks). I've recently upgraded to 12gig, and got 2 x 4gig sticks.

So I'm running with 4gig and 2gig sticks together and it works tip top

keep the extra and run 12 gig in it

07-29-2011, 11:03 PM

Answer to question 1: no, as long as all the RAM is 1333MHz DDR3.

Answer to question 2: depends on what you can get for it I suppose.