"Attempts to follow network cabling to find the missing box led to the discovery that maintenance workers had sealed the server behind a wall."

Ha ha

The missing part in that story is that the system was an IBM PS/2 Model 9595. They were a complete tank.

Here is 3 random pages with info:

http://john.ccac.rwth-aachen.de:8000/alf/ps2_95t3/ http://kentie.net/article/ps2/index.htm http://john.ccac.rwth-aachen.de:8000/alf/ps2_95t4_586/

I had one running as a fileserver for years (OS/2). There was even a hack for the type 4 CPU complex that allowed you to put in a Pentium MMX Overdrive processor (you had to do some soldering). Worked like a charm. I think I had a 233MHz running on it.