Well, Bummer! After another check on Apple's website, it appears that the maximum ram I can have is only 3GB. This kind of fits with my general history of computer upgrades though. For every Mac I've owned, I usually do one major OS upgrade (10.6 in this case), and by the time I get around to another major upgrade (10.10), the computer is sufficiently obsolete that I might as well buy a new one, with the new OS already in it.
