[rescue] Bypassing Password Protected NVRAM on SS4

[Steve Sandau]

With a SPARC5 and a 20 (both with unknow-to-me passwords in the NVRAM),
I was able to fire up the machine and get to the point where it asked
for the NVRTAM password, remove the NVRAM chip, hit enter, replace the
NVRAM and reset the chip to factory defaults. Worked the two times I
tried it with no ill effects.

I don't know if a SS4 is the same arrangement or not...

BSD Bob the old greybeard BSD freak wrote:
> 
> I might be able to pick up a fiver buckeroo SS4 with 64mb ram and probably
> a 1 gig drive.  It might make a nice little additional suntoy.  But, its
> NVRAM has a password set.  Is there a way to clear the NVRAM on an SS4
> via jumper or shorting or somesuch?  I was thinking you could do an
> emergency clear of an NVRAM chip by sorting all pins at once for 2-3
> seconds and no more.  Is there a way to clear it from prom?
> 
> Thanks
> 
> Bob
> _______________________________________________
> rescue maillist  -  rescue at sunhelp.org
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-- 
Steve Sandau, IS Technician
TMA Bath, Maine
ssandau at bath.tmac.com