There's nothing stored in the Parameter RAM that won't be restored to a default state by the OS on boot.
Macs generally won't boot without a PRAM battery though, so if you're storing your systems without one, you'll need to replace the battery before use. You might want to run some wire for a socket out of the case if you're going to do that regularly, since it can be a pain to get in there on many models―and not just on compact Macs, either, though they're obviously tough. -- Chris Sent from my iPad > On Nov 6, 2016, at 2:49 PM, Jules Richardson <jules.richardso...@gmail.com> > wrote: > > > So I'm working my way (more slowly than I probably should be) through my > systems, ditching ancient on-board batteries before they leak... > > In the case of the Mac SE's, are there any critical settings which I should > make a note of before removing the on-board battery? Should I expect any > issues trying to run the machines without? (I'm not inclined to replace > batteries unless I have to, just so I don't have to worry about replacement > again in x years time) > > cheers > > Jules >
