The memory slots are as follows (as you look at the about my Mac memory tab):īoth 4GB are the OE RAM, while the 2 x 8GB are Crucial RAM. My Mac is slow to boot, I have to leave it for about 15 minutes before I go back to start using it, its not particularly slow to use web surfing, Pages, Numbers and Photo Stuff (mainly photo editing). IMac 27' 2.9GHz Quad Core I5 Slow to Boot Late 2012 with macOS Catalina 10.15.7
