AlphaStation 200 NVRAM Problem
pete at dunnington.plus.com
Fri Apr 22 18:48:27 CDT 2016
On 23/04/2016 00:35, ethan at 757.org wrote:
>> In my case there is just a CR2032, and no Dallas module. I will try
>> replacing the CR2032 again.
> The NVRAM failure warning probably isn't the physical ram, it's the lack
> of contents.
Yep, used to be a problem even in the mid-1990s with some Suns. We used
to keep a copy of at least every MAC address so we could reprogram them,
and advocated keeping a dump of the rest of the contents too. Similar
problem on SGIs later, which reminds me of a trick an SGI engineer
showed me for Indys. If you need to replace the Dallas chip, especially
with one "borrowed" fom another machine,first put it in backwards. That
wipes it - most importantly, the MAC address, on which some licences
depend - and lets the machine boot to the PROM as far as you need to
reprogram the necessary variables. I accept no responsibility for any
problems arising from testing this however!
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