RAM

Hi,

What Operating System are you running and is it 32bit or 64bit?

As a general rule a 32bit OS runs best with 3 or 4 Gig of Ram. It can use between 3.4 & 3.6 Gig and the balance can be used by the GPU.

64bit OS needs generally a minimum of 4 Gig of ram but 8 gig is better especially if it is Win 10.

Matched pair are best. ie Same brand & model numbers.

Your CPU can address 16 Gig of RAM so it probably would run it but 8 Gig is enough generally for Windows 10.

Not better, only faster.
Be sure to have an even number of sticks of exactly the same model. Never mix different sticks.

However, seeing on https://www.cnet.com/products/samsung-series-3-300e4a-14-c-b800-windows-7-starter-2-gb-ram-500-gb-hdd-series/specs/ it came with Windows 7 Starter and MS Office 2010 pre-loaded, my guess is that it is something like 6 years old. It's doubtful if it's a good idea to spend much money on such an old and basic laptop.

a 64 bit processor and with a max of 16 GB of RAM. But that doesn't mean that Samsung designed it for 16 gb. I wouldn't put money into that system as you can get a newer 300 to 500 dollar laptop that would be faster than anything you can do to that laptop.