Help need Ram 4GB x 2 for late 2015 imac

[SamJames170]

Hi I am in UK and just want to get 2 x4GB ram to go in the two empty slots the others have 2 x 4GB in allready. Anyone can help give me link to buying the right ram.

Really appreciate it !
Thanks
Sam


iMac (Retina 5K, 27-inch, Late 2015)
3.2 GHz Intel Core i5
8 GB 1867 MHz DDR3

 

[joevt]

You can get specs at https://eshop.macsales.com/upgrades/imac-retina-5k-27-inch-late-2015-3.2-ghz/memory

Or here https://everymac.com/systems/apple/...-inch-aluminum-retina-5k-late-2015-specs.html
click RAM Type and Standard RAM for more info.

 

[SamJames170]

If I want to go to 16GB total should I get 2 more 4GB chips or just buy 2 new 8GB chips?
Thanks !

 

[Nguyen Duc Hieu]

If I want to go to 16GB total should I get 2 more 4GB chips or just buy 2 new 8GB chips?
Thanks !

I would just buy 2 new 16GB sticks. In case I wanted to increase the RAM, just buy another 2 sticks of 16GB.

Of course, the cheapest option and wasting nothing is buying another pair of 4GB sticks.

 

[wilberforce]

It might be easiest to obtain 2x8GB sticks and add to your 2x4GB sticks for a total of 24GB. This is what I did.

 

[saudor]

As a heads up, there is no guarantee that the new 2x4gb sticks will work perfectly with your existing 2x4gb sticks. It will most likely work but can have really minor issues or drop in performance if the timings are off. When i mixed RAM, I would occasionally get weird kernel panics or an app freezing. It was fairly rare but when i changed to matching pairs, it all went away and the system was super stable.

For best stability, going with new 2x8gb or 2x16gb if you want to go all out, is a better idea as matching pairs are guaranteed to work together.