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Article #120

Where is "sysinfo" on an Indigo?

#120
From: David M. Senseman
Date: Wed, 27 Jan 1993 04:15
25 lines
1589 bytes
Just out of curiosity, where is "sysinfo" physically located
in an Indigo? The reason I ask is that I kind of expected 
a copy protection scheme that uses "sysinfo" to break when
I swapped out my R3K cpu board with a R4K cpu board (and 
power supplies). Suprisingly it didn't seem to affect the
copy protection scheme :)

So :

  (1) the Vendor's copy protection scheme doesn't work
  (2) SGI loaded the "sysinfo" on the replacement cpu
      with the same 'unique identifier' as the R3K card
      (can two cards have the same *unique* identifier? :)
  (3) The physical location of the "sysinfo" is NOT on the
      cpu card, or the graphics card, or powersupply.
      That only leaves the backplane....

Of course is the location of "sysinfo" is a secret then forget
I even brought this up :)
    
-- 
David M. Senseman, Ph.D.              | Imagine the Creator as a low 
(senseman@lonestar.utsa.edu)          | comedian, and at once the world 
Center for Information Visualization  | becomes explicable.
University of Texas at San Antonio    |               H.L. Mencken 
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From: senseman@lucy.brainlab.utsa.edu (David M. Senseman)
Subject: Where is "sysinfo" on an Indigo?
Message-ID: <1993Jan27.041554.6018@ringer.cs.utsa.edu>
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Date: Wed, 27 Jan 1993 04:15:54 GMT
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