RAM Upgrade Questions

[Cyril_DC]

Hi 

my laptop comes up 4gb RAM DDR4-2400 (1200 MHz) installed SLOT 1

SLOT 2 is free so i like to add other RAM...

I LIKE TO ADD 16gb or 8gb so i like to this ram 

Crucial CT16G4SFD8266 16GB Single DDR4 2666 MT/s PC4-21300 DR x8 SODIMM 260-Pin RAM

Can i us SLOT1 =  4GB and SLOT2 = 8GB OR 16GB 

is that possible 

or any other suggestion

[banhien]

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@Cyril_DC wrote:

.. Can i us SLOT1 =  4GB and SLOT2 = 8GB OR 16GB 

is that possible 

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@Cyril_DC 

The best option is to run RAM in dual channels that means BOTH slots use same RAM stick specs. You can use 12GB (4+8) or even 20GB (4+16) but what for ? You can upgrade to

    (a)  8GB: add same existing RAM to slot 2 or using the following compatible RAM

                 https://www.crucial.com/memory/ddr4/ct4g4sfs824a/ct14153696

   (b) 16GB: install 8GB each to both slots using the following compatible RAM

                https://www.crucial.com/memory/ddr4/ct2k8g4sfs824a/ct14153673

   (c) 32GB: install 8GB each to both slots using the following compatible RAM

               https://www.crucial.com/memory/ddr4/ct2k16g4sfd824a/ct14153637

Regards.

[Cyril_DC]

Thankyou Banhien

But My doubt is can I use Slot 1 as DDR4-2400 and Slot 2 as DDR4-2666 is that POSSIBLE

or should I use same

[banhien]

@Cyril_DC 

You can install 2666MHz, it will run at lower speed which is 2400MHz. But please use same speed RAM

Regards.