How long does it take to install new RAM in a desktop computer?

Probably 10 to 15 minutes, including finding a screwdriver. Desktops are easy—just pop open the case, release the clips, line up the notch, and push until they click. If you run into trouble, it’s usually software-related like enabling XMP, which might add five minutes in BIOS. The physical swap almost never takes longer than making a cup of coffee.