On Sun, 2014-08-31 at 22:48 -0700, Tod Merley wrote:
My test for a bad CMOS battery is simply to load the default CMOS
values - make sure the machine is NOT turned off - and see if the
problem goes away - but returns after the machine is turned off (for
a time).
I've come across computers that foul up when powered up with a dead CMOS
battery. I get the impression that some BIOSs have parts of themselves
powered only by the battery, and don't get anything from the main power
supply.
But frankly if you are going to go to all that trouble - for the
cost
(see:
http://www.amazon.com/Energizer-CR2032-Lithium-Battery-packs/dp/B00FO9HQLS/
) you might as well keep some on hand and replace them while you are
in there.
The shelf life of some batteries is not that different from their
operating life. I wouldn't keep spares around for long. I seem to
recall that /that/ battery has a lifespan of about 3-4 years, whether in
the computer or unopened in the packet. It seems to be the way with
lithium batteries.
--
tim@localhost ~]$ uname -rsvp
Linux 3.15.10-201.fc20.i686 #1 SMP Wed Aug 27 21:33:30 UTC 2014 i686
All mail to my mailbox is automatically deleted, there is no point trying
to privately email me, I will only read messages posted to the public lists.
George Orwell's '1984' was supposed to be a warning against tyranny, not
a set of instructions for supposedly democratic governments.