How to find out what memory is soldered on the laptop board?

Question

laptops

Greetings. Faced a problem when upgrading my laptop ( Asus X555YI-XO029D ). I want to add RAM, I found that only one bar is available for replacement, it is now on 2GB DDR3L CL 11 - 13 - C3. Nowhere can I find information about what kind of memory is soldered on the laptop board, I just know 4 GB, but I don’t know the type of memory DDR3 or DDR3L. They differ only in the consumption of 1.5 and 1.35V, respectively. And now, when buying a new 4 GB stick, I don’t know which one will be compatible with soldered, DDR3 or DDR3L.

Answer 1

Since it cost ddr3l now, then take this one.
And in general, everything seems to be written on the manufacturer's website: "DDR3L 1600 MHz SDRAM, built-in memory 2 GB / 4 GB, 1x DIMM slot(s), DIMM up to 8 GB"