Upgrade RAM iMac 27 5 k 2014

Hello all, I would like updating ram, currently, the iMac iMac 27 5 k 2014, has 8 GB. I would like to know if it is advisable to be upgraded by adding strips of memory RAM of the same capacity in GB or you can also, for example, to add to the current 8 GB (4 + 4) two banks of 8 GB, then a configuration 4 + 4 + 8 + 8 for a total of 24 GB? I had read in some forum that the RAM works better if the banks have the same size. I would like to know if the Rams who are currently inside iMac have the DDR or DDRL? Because I noticed that many manufacturers specify the voltage of 1.35v or 1.5V. Thanks... and sorry for the bad English.

Models of 5K 2014 27 inch supports up to 32 GB.

Install the memory in an iMac - Apple Support

Memory is generally sold in the form of kits because the memory even from the same manufacturer with the same capacity is recommended.  If you want to 24GO then buy a 24GO kit that has four sticks of 6 GB or 12 GB two sticks.  However, this model iMac only supports 4 GB and 8 GB sticks.  The memory specifications call for DDR3, not DD3L.

If you have four memory locations that you have two channels, each with their own bank.  Although you can use a different capacity for each channel, the two sides of the same channel must be identical.  It is always better to simply buy a kit anyway and use memory which has been manufactured to be used together.

I use a Mac at work, but for the last 15 years I have built my own desktops for home use.  One of my personal favorite for the last five years has been from G.skill.  http://www.GSKILL.com/en/product/FA-1600c11d-16gsq

Other good brands are Crucial, PNY, Kingston, and Corsair.  Do not forget to get SODIMM 204 pins instead of 240-pin SDRAM sticks.

Tags: Mac

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