memory compatibility question

Question

i have a couple of 16gb sticks of RAM from other dell laptops that i'd like to use in my 5591.

both are SK Hynix and were factory installed in their respective latitudes.

one is a 16GB 2Rx8 PC4-3200, the other is also 16GB and PC4-3200 but 1Rx8.

are either/both 2Rx8 and 1Rx8 compatible with the 5591?
are they compatible with each other, so i can install both and get my 5591 up to 32GB?

thanks

DELL-Jesse L · Answer

Below are the memory specs for the Latitude 5591.

Memory

Table 1. Memory specifications
Features	Specifications
Minimum memory configuration	4 GB
Maximum memory configuration	32 GB
Number of slots	2 SODIMM
Maximum memory supported per slot	16 GB
Memory options	4 GB - 1 x 4 GB 8 GB - 1 x 8 GB 8 GB - 2 x 4 GB 16 GB - 2 x 8 GB 16 GB - 1 x 16 GB 32 GB - 2 x 16 GB
Type	DDR4 SDRAM Non-ECC memory
Speed	2666 MHz