[rescue] NVRAM images

[Jeff Borisch]

>From my understanding the battery is draining most while the clock is
running. If you want to preserve the battery while the machine is off, you
could stop the clock from OpenBoot. I believe the instructions are in the
NVRAM faq. IMO unless you are taking the machine offline for a long time,
it's not that practical to do this to save battery life.

I just have a surface mount button cell holder epoxied on the top of the
NVRAM. Don't know if you could hot swap batteries in an NVRAM.

I guess you could wire up a connector for a 3v wall wart to the back of the
machine if you are really into redundancy. (-:

best,
jeff

Harri Haataja wrote:

> I was once wondering that if (I got that idea from somewhere) the
> machine only "ages" wen it's off, couldn't you just keep feeding power
> to that one chip from a battery/psu 24/7 even if you shut the rest of
> the machine off?
> 
> Or does the chip age steadily anyway?