[SOLVED] My confusing Laptop RAM capacity!

[Prizam]

My Laptop Asus X409UJ has maximum ram about 16gb ram, then 4gb soldered ram inside.. And one slot channel free..

Is it possible for me to upgrade up to 16gb ram?.. Because the problem there's no such a 12gb physical ram to make my laptop 16gb ram..

How if i installed a 16gb ram on my laptop even the limits is 16gb, will it work properly so my laptop can run at 16 gb ram..

 

[jay32267]

I'm seeing that laptop is available with 8GB on board.

I think this is how they are getting 16GB total. 8+8

There are all these different configurations for that laptop.

4GB DDR4 on board, Memory Max Up to:16GB
4GB DDR4 on board, 4GB DDR4 SO-DIMM, Memory Max Up to:16GB
8GB DDR4 on board, Memory Max Up to:16GB
8GB DDR4 on board, 8GB DDR4 SO-DIMM, Memory Max Up to:16GB
4GB DDR4 on board, Memory Max Up to:8GB
4GB DDR4 SO-DIMM, Memory Max Up to:8GB
4GB DDR4 on board, 4GB DDR4 SO-DIMM, Memory Max Up to:8GB
8GB DDR4 SO-DIMM, Memory Max Up to:8GB

 

[geofelt]

Go to crucial or kingston and access their ram upgrade app.
Enter your motherboard and you will get a list of supported ram upgrades.
Here, I think is the link from crucial:
https://www.crucial.com/compatible-upgrade-for/asus/vivobook-14-x409uj
Note that 16gb is a supported upgrade, giving you 20gb of ram.
The first 8gb will operate in faster dual channel mode, and the remaining 12gb will be in single channel mode as you are now doing.
That is called flex mode.
Differing speeds are offered.
Run cpu-Z to see what speed you now have.
Match that.
Any ram faster will work, but will run only at the speed of the slowest ram.