In this guide, you will learn how to upgrade RAM on Asus G771, I will remove the service cover and remove and replace RAM.
Remove one screw securing the service.
Pry up and remove the cover.
Asus G771 has two RAM slots, if your laptop has two 8GB RAM, you may need to upgrade it.
The RAM type is DDR3L 1600MHz.
Just gently pull apart the latches. The RAM will pop up.
Now you can insert your new RAM, maybe two 16GB DDR3L 1600MHz.
All the images are from asus.com