[SunRescue] Dead Sparc NVRAMS

Bran Tregare rescue at sunhelp.org
Mon Jun 4 01:09:45 CDT 2001

it's easier for me to just pull the whole battery/crystal assembly, I want 
to ger rid of the drained lithium cell as it will eventually leak, and 
corrode out through the hookup wires... I had an old 48T02 that was totally 
wasted because of that :(  plus the sparc 1 MB that it was on was damaged 
by leaking lithium :(

At 09:03 PM 6/3/01 -0700, you wrote:
>On 02 Jun 2001 12:38:20 -0700, Bran Tregare wrote:
> > I'm actually going to be pulling the whole battery/crystal assembly and
> > soldering on a new 32.768Khz crystal and a battery holder.
>Why let that perfectly good crystal go to waste?  I was doing this to
>save myself a few bucks, and because I knew these chips were the right
>breed, just short on battery life.
>         Greg
> > At 10:19 PM 6/1/01 -0700, you wrote:
> > >On 01 Jun 2001 14:20:12 -0700, Bran Tregare wrote:
> > > > anyone have any of the dead nvrams floating around?  I'm looking at 
> trying
> > > > my hand at a little project (removing the battery/oscillator 
> package, and
> > > > adding a new oscillator and a button battery holder to it (CR2032 type)
> > > > )  but :(  my wife found my stash in the carage that i'd already 
> dremeled,
> > > > and threw them away thinking that they were junk :(
> > >
> > >I've done this with three of them so far, it's pretty easy.  On the end
> > >of the chip towards the battery, just carve away the glue/filler
> > >substance, until you expose the leads.  I disconnected the leads from
> > >the battery, and soldered some new pieces of wire on there, and then
> > >soldered them to a (larger) battery.  Once connected, I just hot-glue'd
> > >the battery to the top of the chip.  That blocks an SBUS slot, but I'm
> > >just doing this on SS2s, and I run them all with 0 or 1 card anyway.
> > >Make sure you don't leave the old battery hooked in-line, because it
> > >will drain your new battery quickly.  Cutting one of the leads to the
> > >old battery is pretty easy, if you're careful.  All three of the ones
> > >that I've build so far seem to work just fine.
>rescue maillist  -  rescue at sunhelp.org

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