Re: Mac SE NVRAM battery removal

2016-11-07 Thread Chris Hanson
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 s

Re: Mac SE NVRAM battery removal

2016-11-06 Thread drlegendre .
Jules, No - go ahead and remove. The battery retains the PRAM data, which is generally not a user-accessible feature in the way CMOS RAM is on x86. The PRAM will be restored on next boot - but obviously, some things (like virtual memory) will need to be re-enabled. Not a big deal at all. On Sun,

Re: Mac SE NVRAM battery removal

2016-11-06 Thread John Rollins
You just made me think that I need to go check on some of my stuff and see what the batteries are doing… Been quite a while since I used a lot of them. On an old Mac, quite often the reason for a machine to not boot at all would be a dead PRAM battery, so complete removal may not be an option. Y

Mac SE NVRAM battery removal

2016-11-06 Thread Jules Richardson
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 issue