[rescue] Fixing dead Sun NVRAM - was Re: Sources of IRIX

[John Hudak]

interesting....this approach is akin to 'stone knives and bear skins'
approach, but, still gets the job done.
Thanks for the pointer.

I've read a few of these articles...surprising to me is that the
'revelation' is to disconnect the embedded battery, ....well duh...it is
dead, it cannot be recharged, so attempting to pump more electrons into a
defective cell isn't going to bring it back to life.
Cut the lines to the dead battery.

J



On Sun, Feb 12, 2017 at 1:19 PM, Toby Thain <toby at telegraphics.com.au>
wrote:

> On 2017-02-12 12:34 PM, Carl R. Friend wrote:
>
>> ...
>>    I "re-powered" a Sun clock-chip for a guy who wanted his old
>> SPARC machine restored last year and "did it the hard way" by taking
>> the top off the chip where the battery was, extracting the old battery,
>> and wiring in a battery-holder to put a CR2032 in to keep contents
>> sane when the machine was powered off.  The old one *in* the chip
>> looked very much dimensionally like a CR1220.  Expect to make a mess
>> if you do things this way.
>>
>>    I have a couple of Sun machines myself that need this treatment.
>> I am not looking forward to it...  There's an entire Sun-based FAQ
>> on the tactic right down to all the gory details.  Find a copy, print
>> it out, and put the copy someplace where it can be found when you need
>> to perform the operation.
>>
>
> I have an E450 that needs the same job.
>
> Here's one howto: https://gigawa.lt/gigawa.lt/Sun_NVRAM.html
>
> --Toby
>
>
>
>
>>    Cheers!
>>
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