RAM

[Pepperpoo]

Hi Guys

I have an iMac (Retina 5K, 27-inch, Late 2014). It runs on 1600MHz DDR3 RAM.
My iMac has four RAM slots. I'm only using two. These are 2 x 4GB 1600MHz DDR3 chips.
The other two slots are not in use.
My dad has two spare RAM chips from an older iMac that are 1333MHz.
Can I use these two 1333MHz chips in addition to the my 1600MHz in the two currently empty slots?
Will it work and if so would it have any effect?

Cheers

 

[marzfreerider]

Your 1600 RAM will clock down and run @ 1333MHz. As long as the other specs match up it should work, it will just run at the lower speed

 

[Pepperpoo]

Your 1600 RAM will clock down and run @ 1333MHz. As long as the other specs match up it should work, it will just run at the lower speed

Hey marzfreerider! Thanks for the reply. So if I were to put the two 1333MHs in, it would lower the other two 1600MHz RAMS down to 1333MHz? If so do you think it would be worth having 4 x 4GB running at 1333MHz or stick with just 2 x 4GBs running at 1600MHz? Cheers

 

[marzfreerider]

That's correct, it will lower the speed for all to 1333MHz. Extra RAM is always nice and the difference in performance would be small.

 

[Pepperpoo]

That's correct, it will lower the speed for all to 1333MHz. Extra RAM is always nice and the difference in performance would be small.

Thanks. So I guess it would still be worth putting them in. Cheers and thanks for your thoughts. Massive help.