New ram not working or responding in Acer aspire E5-573

Sometimes not all RAM sticks detected ram not detected in slot 2 The strange thing is that when I enter the BIOS it recognizes both 8gb modules but in total RAM it still 8gb Also from ramses book slot Loose components ; Faulty computer hardware; Corrupted graphics drivers; Incorrect BIOS configuration In this post, we'll go over

ram slot 2 not working RAM SLOT NOT WORKING Both RAM SLOT NOT WORKING PROBLEM SOLVE, FULL RAW