Today I was replacing a lot of ram on the old I-7 macs, some of which only had about 4 gb of ram (crazy small amount). These all now have 16 gb of ram, making them race cars compared to the 2000's Dodge Neon they once were. I am putting their old Ram cards into the white mac laptops, which currently have two one gigabyte cards of ram. I also go in and clean them during the process.