You can put another battery in parallel with the existing one and this works
fine until myour computer is obsolete.
Don Benoit
----- Original Message -----
From: "William Closure" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, December 18, 2001 1:30 PM
Subject: [PCBUILD] replacing motherboard battery


> In a message dated 12/17/01 11:31:07 PM Central Standard Time,
> >
> >
> >   The battery on the motherboard provides power for two basic
> > functions:
> >
> > 1.  Configuration data is stored in RAM (generally CMOS) that *does*
> > require a small amount of current to keep its contents.  (This is
> > "static" RAM, so all it needs is a trickle of power to the memory
> > circuitry.  "Dynamic" RAM needs somebody to rewrite each and every
> > memory location every so often, which makes it cheaper but more power-
> > needy.)
> >
> > 2.  There is an electronic clock, similar to the innards of an
> > electronic watch (sans display) that keeps track of the time and
> > date; as part of the boot sequence, the operating system obtains the
> > current time from this circuit and keeps track of time itself while
> > up and running.  One of the early signs of imminent battery failure
> > is that the machine, each time booted, doesn't know what day/time it
> > is.
> >
>
> Which brings up the question . . .
>
> How does one go about replacing the motherboard battery?  I have a
Magitronic
> Pentium, 32 Mg Ram, running Windows 98 of unknown age.  The clock has lost
20
> minutes in the last week or so.  Should replacement battery be done with
> computer running?  Plugged in?  How do I locate it?  How do I know what
kind
> of battery to use?  What do I have to do BEFORE I start messing with this,
so
> I don't lose up my computer.  (I already have one down.)  I have memories
of
> reading about computers blowing up (well, not literally) if batteries were
> allowed to die.
>
> I checked the archive, but couldn't find anything that addresses these
> questions at this simplistic level.  Any web sites that can educate me?
>
> William Closure
>
>                          PCBUILD's List Owners:
>                       Bob Wright<[log in to unmask]>
>                        Drew Dunn<[log in to unmask]>

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