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Article View: comp.sys.dec
Article #4400

Re: Unknown console password on DECstation 5000/33

#4400
From: CP/M lives!
Date: Fri, 22 Jan 1993 16:00
25 lines
1927 bytes
In article <ROBM.93Jan21164254@ishtar.Berkeley.EDU>, robm@ishtar.Berkeley.EDU (Rob McNicholas) writes:
> In article <1993Jan20.152752.1@ssrl01.slac.stanford.edu> winston@ssrl01.slac.stanford.edu (Alan Winston) writes:
>    So now what?  Does anybody know how to defeat the console password 
>    protection?  Do I have to buy new boot ROMs or something?
> 
> 
> We had a similar problem once with a DS3100.  The suggestion we
> received from the Customer Support Center was to open up the machine,
> find the battery on the motherboard (which backs up the non-volatile
> ram), and remove it "for an hour or so."  We did this, put it all back
> together, and discovered that "an hour or so" wasn't quite long
> enough.  So, we took it apart again and left the battery out
> overnight.  That did the trick.  (Unfortunately, this causes the
> console to forget anything you've stored in the NVRAM, like the
> default boot device, etc, but resetting all that stuff isn't TOO
> difficult).

I don't think this sort of thing will work with the 5000s. The NVRAM is one
of those Dallas Semiconductor parts that has an integrated battery. Even
pulling the chip out of the socket doesn't disconnect the battery.
-- 

Roger Ivie                      "My God! That computer is full of Pentium!
ivie@cc.usu.edu                  It's a wonder that you haven't been turned
                                 into mutants!"
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Message-ID: <1993Jan22.100004.63045@cc.usu.edu>
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References: <1993Jan20.152752.1@ssrl01.slac.stanford.edu> <ROBM.93Jan21164254@ishtar.Berkeley.EDU>

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From: ivie@cc.usu.edu (CP/M lives!)
Newsgroups: comp.sys.dec
Subject: Re: Unknown console password on DECstation 5000/33
Message-ID: <1993Jan22.100004.63045@cc.usu.edu>
Date: 22 Jan 93 10:00:04 MDT
References: <1993Jan20.152752.1@ssrl01.slac.stanford.edu> <ROBM.93Jan21164254@ishtar.Berkeley.EDU>
Followup-To: comp.sys.dec
Organization: Utah State University
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